Valves

During the 20th National Congress, leader of Hunan Province introduced the advantages of Hunan in the construction machinery industry: 1. In the time for a cup of tea, more than ten thousand parts of a locomotive were gathered in a 5 km radius. 2. One excavator can be off the line in 5 minutes. 3. Among the top 5 global construction machinery industries, Hunan accounts for 2.   From the above 3 points, we can see that there are 2 key technologies in the Chinese market: a complete industry and technology chain and the world's largest market. This is the speed of China and the advantage of China's machinery industry. I think any organization in the machinery industry can hardly be separated from China. This is also the reason why big brands, such as SUN Hydraulics and HydraForce have set up factories in China.   9 years ago, AAK Hydraulic Valve realized that the manufacturing of hydraulic cartridge valves alone was difficult to reflect the advantages of AAK compared with its peers, thus it extended from hydraulic cartridge valves to hydraulic units, which are hydraulic manifolds. Up to now, AAK has been the hydraulic manifold supplier of Honeywell for 6 consecutive years.   What are the advantages of purchasing hydraulic manifolds from AAK? In the words of Honeywell's purchasing director, it saves time, costs and links. 1. Shorten the whole procurement process: plugs, connectors and hydraulic valve blocks can be produced in AAK. Purchasing and tracking from multiple factories have become a one-stop process from AAK. 2. The installation process is simplified: AAK hydraulic units or manifolds can be directly installed into the equipment, and customers do not need to test the manifolds separately. 3. Undertake design services: from the hydraulic principle, oil circuit design, hydraulic valve selection, AAK 100% personalized customization. It is hard to engage in manufacturing industry, especially the hydraulic unit, the hydraulic manifold with technology, which is slower, more stupid and more solid than others. It is the smart people who make toil efforts. There is no shortcut to this road. There is no safe haven. Without “1”, the manufacturing quality takes the lead in the front, any more 0 after will eventually return to zero. Just like life, whether you can stand on the waves, and whether you can hold on the bottom of the waves.   From Hunan above to talk about Ningbo. Ningbo is the hometown of hydraulic valves in China, just hydraulic screw-in cartridge valves, there are more than 200 factories. An old American customer asked me a question: What is the current situation of Chinese hydraulic valve manufacturers? In fact, it is also the situation of Ningbo hydraulic valve manufacturers. My answer is as follows: There are 230 registered hydraulic valve manufacturers in Ningbo, 40 of them, whose manufacturing quality can be recognized, less than 10 are benchmarking SUN hydraulics and HydraForce, and less than 3 are capable of developing hydraulic manifolds independently.   AAK hydraulic manifolds lead the industry in 3 aspects: 1）Hard power of manufacturing quality 2）Skillful strength of part innovation 3）Soft power of network trust   In terms of personalized customization of hydraulic manifolds, it is not difficult to combine, vary and graft some hydraulic unit structures to create something new. It is better to use your limited life to do something that can leave a mark on this beautiful planet than to make some so-called patents that can not create any value. At that time, when old at the end of my life, I will think that I have lived for so many years, and made so many hydraulic manifolds to run on the earth, that is enough without regret. AAK hydraulic manifolds, 3 benefits, 3 strengths, you can also try a small order. https://www.aakindustry.com/info , -detail/hydraulic-manifolds-aak387

Sven from Sweden has been purchasing from hydraulic cartridge valve manufacturers in Europe for over a year. At the beginning of this year, his boss requested him to try purchasing from hydraulic cartridge valve manufacturers in China. Unexpectedly, the first time he purchased a hydraulic cartridge pressure control valve, problem occurred. The hydraulic cartridge pressure control valve purchased from the original hydraulic cartridge valve manufacturer has a lifespan of only 3-4 months, and the root cause is leakage at the connection between the valve cage and valve body. The original manufacturer blamed the cold climate for accelerating thread corrosion and causing leakage, which made Sven very helpless. Sven found hydraulic cartridge valve manufacturer AAK and left a message: 1. As soon as I searched for hydraulic cartridge valve manufacturers in China, I found AAK and looked forward to AAK's assistance. 2. Can the hydraulic cartridge valve manufacturer AAK provide hydraulic cartridge pressure control valves that operate in an environment of minus 40 degrees Celsius and have a service life of no less than 12 months? After communication, we learned that he had encountered a problem when purchasing hydraulic cartridge pressure control valves. Sven also provided me with the contact information of the original hydraulic cartridge valve manufacturer. The manufacturing capacity of this hydraulic cartridge valve manufacturer is still good. Why did he encounter such a problem? The installation and sealing details should not be in place, which accelerated the corrosion progress of the threads and reduced the service life by more than half. Sven learned that hydraulic cartridge valve manufacturer AAK supplied several Russian customers in low temperature environments, so he requested AAK to test the order. After 35 days, 20 hydraulic cartridge pressure control valves were sent out. Last Friday, Sven sent us an email stating that the hydraulic cartridge pressure control valve provided by AAK has been working for 6 months without any abnormalities. I told him that as long as the connection between the valve cage and valve body of the hydraulic cartridge pressure control valve is not stamped by external force, it will not loosen and there will be no leakage. How does AAK install the valve cage and valve body? There are details and skills here, as well as the awesome of the flow meter of the glue filling machine. 1. Details: The selection and configuration of AB adhesive. Most hydraulic cartridge valve manufacturers directly choose pre mixed sealants. AAK selects component A as epoxy resin curing agent and component B as hardening agent and filler. Then, according to the thread style, the ratio of A and B is determined and is now ready for use. AB adhesive has a high-strength bonding effect, strong sealing effect, corrosion resistance, and low temperature resistance, and is safe in environments ranging from -60 to 120 degrees Celsius. 2. Flow meter for glue dispenser: The amount of AB glue applied to the valve cage is also important, as more will affect installation, while less will affect sealing. Hydraulic cartridge valve manufacturer AAK uses elliptical gear flow meters, with different threads corresponding to different flow rates. I know that WINNER in Taiwan uses this flow meter, while other hydraulic cartridge valve manufacturers in China rarely use it. 3. Assembly technique: AB glue is evenly applied to the threads of the valve cage through the flow meter of the glue filling machine, then the valve cage is screwed into the valve body, and the valve body is tightened with a fixture. In humid and corrosive gas environments, without rigorous thread sealing, the threaded connections are prone to corrosion, leading to thread loosening. The 3 major advantages of installing hydraulic cartridge pressure control valves in AAK are low temperature resistance, easy resistance to corrosive substances, protecting the integrity of threaded connections, all of which extends the service life of hydraulic cartridge pressure control valves. AAK assembly has 3 major advantages, ensuring a service life of over 12 months for hydraulic cartridge pressure control valves at low temperatures. You can also give it a try. AAK HYDRAULIC CARTRIDGE VALVES (715) 2023-11-14 https://www.aakindustry.com/info , -detail/pressure-control-valves-aak715

Product Description 1/2 Water Faucet Tap Detail About Bibcock Valve Brass Bibcock Tap, Bib Tap HBC-55802 The bibcock is connected to a water source on one end and the other end is an outlet Finising: Polishing and Chrome plated Handle: Brass Life time: 10000 times On-Off Materials: HPB 57-3,CW617N, H58-3 Size: 1/2", Temperature: -10˚C-100˚C Thread connection BSP, NPT Warranty: 24 months Working pressure 12 bar, 16 bar Technical Parameters: Property Value Product Name 1/2 Water Faucet Tap Size 1/2 Structure Angle Type Connection Male Threaded Material Brass Color Chrome Surface Treatment Polished Handle Type Zinc Alloy Pressure Medium Pressure Warranty 2 Years Features faucet vs tap "Faucet" and "tap" are two terms that are often used interchangeably to refer to a device used for controlling the flow of water in plumbing systems. However, there can be slight differences in their usage depending on regional preferences or context. Here's a general overview of the terms: Faucet: In American English, "faucet" is the more commonly used term. A faucet typically refers to a device that controls the flow of water in a plumbing system, specifically in the context of fixtures such as sinks, bathtubs, showers, or basins. Faucets are available in various styles, including single-handle, double- handle, and motion-sensing models. They can be operated by turning a handle, lever, or knob to regulate the water flow and temperature. Faucets may have additional features such as pull-out or pull-down sprayers for kitchen sinks, or integrated showerheads in the case of shower faucets. Tap: In British English and other English-speaking countries, "tap" is the more commonly used term. A tap typically refers to a device used to control the flow of water in plumbing systems, including both indoor and outdoor applications. Taps are commonly found in kitchens, bathrooms, gardens, and other areas where water outlets are needed. Taps can be operated by turning a handle or lever to open or close the valve, controlling the water flow. They may have separate taps for hot and cold water or a single tap with a mixer for regulating the water temperature. The term "tap" is also used to refer to a spigot or faucet-like device used to draw or dispense liquids from containers such as barrels or kegs. In summary, both "faucet" and "tap" generally refer to devices used to control the flow of water. The choice of term may depend on regional or cultural preferences, as well as the specific context of usage. What is the 1/2 Water Faucet Tap The phrase "1/2 Water Faucet Tap" typically refers to a type of water faucet or tap that is designed to connect to a water supply using a 1/2 inch (or sometimes written as 1/2") pipe thread. The "1/2" indicates the size of the pipe thread, which is a common standard for residential plumbing fittings. In plumbing terminology, the size of pipe threads is often measured in fractions of an inch, and the 1/2" size is a standard size for many household water faucets. This measurement refers to the diameter of the pipe thread that the faucet or tap connects to. So, when you come across the term "1/2 Water Faucet Tap," it typically means a faucet or tap that has a 1/2 inch pipe thread connection for water supply.

When I got up to go to the bathroom at 1 a.m. last Monday, my wechat phone rang. It was from Carl, the purchasing manager of Denison hydraulic pump company in the United States. I was very surprised by this phone call. Generally, we communicate with Carl in the form of e-mail and have never used wechat phone. Carl firstly said sorry to disturb my rest, and asked if I could arrange a video conference at 8:00 tomorrow morning. He needs to discuss a troublesome problem with our technical team. I'm concerned that the communication on the phone will not be clear, and asked him to send me a written email first, and then I'll reply to him. Half an hour later, a detailed email with a schematic diagram of the hydraulic system came in. Last week, the hydraulic pump supplied by them encountered problems with his customer. The customer's hydraulic system has been shelved for half a year, and now it needs to be driven. After the operator starts the hydraulic pump, there is no pressure in the hydraulic system. The field engineer judged that there was no flow output of the hydraulic pump, but after inspection, it was found that the rotation direction of the motor was consistent with that of the hydraulic pump, and the oil level, oil temperature and viscosity of the hydraulic pump met the working conditions. The suction system of the hydraulic pump was replaced, including the oil suction pipe and filter. After startup, there was still no flow output. The transmission parts inside the hydraulic pump are intact without falling off, fracture and blade jamming. A week has passed and no reason has been found. Because the hydraulic pump is still in the warranty period, if it cannot be solved in another week, it can only be returned for claim. Carl asked the original supplier of each part for the hydraulic pump and got nothing. After reading the email, I asked him if the hydraulic pump used a hydraulic check valve? Carl said that the hydraulic check valve was provided by HAWE company in the United States, but the after-sales period of the hydraulic check valve has expired. Because AAK supplied hydraulic check valves to their company last year, and the quality was very satisfying, although the hydraulic check valve in this hydraulic pump is not from AAK, he wants to see if AAK technical team can find out the reason. I said there was no problem with the 8:00 video conference tomorrow, because the chief engineer of AAK didn't travel, but I'm not sure if we can help. The next day in the video conference, their engineers showed the whole system. Our chief engineer found that the displacement of the hydraulic pump was 8ml / R, so he asked them to fill the hydraulic pump directly in the oil outlet pipeline, and then start it up. The hydraulic pump still had no flow. Then asked them to disassemble the liquid pump to see the oil stains in the inner cavity of the oil suction pipe in the pump. As a result, there is no oil stain in the upper half of the suction pipe in the pump and the vertical section, while there is oil stain in the lower half. The problem should be here. The lack of flow output of the hydraulic pump is caused by the pump's failure to suck oil or empty. The problem lies in the hydraulic check valve at the pipe joint at the oil outlet. It should be that the valve spool of the hydraulic check valve is stuck. They removed the current hydraulic check valve, and replaced it with a new hydraulic check valve, and restarted. The hydraulic pump outputs the flow normally, but it stops working after 5 minutes. Our chief engineer said calmly that the problem must be here. The reason for the shutdown is that the new hydraulic check valve does not meet the current working condition. The new hydraulic check valve must be purchased per this working condition or re-purchase the previous hydraulic check valve. Carl asked us to sample 2 hydraulic check valves according to their working conditions. If they match, this hydraulic check valve will be purchased from AAK in the future. At the same time, Carl proposed to Denison's senior management that AAK can be the designated supplier of Denison in the hydraulic check valve, because they admire AAK's professional ability and strong technical R & D team. The top management is happy to accept Carl's suggestions and appreciates Carl's way of solving the problem this time. Carl hopes that AAK and Denison will become strategic partners and jointly build the world's strongest manufacturer of hydraulic equipment. We are ready. AAK hydraulic check valve can replace the local hydraulic valve supplier of American customer. Its quality is comparable with the international first-line hydraulic valve brands.You can also have a small try. https://www.aakindustry.com/info-detai , l/hydraulic-check-valve-aak112

James is the purchasing director of one of our American Hydraulic customers. They are the top 3 in the construction machinery industry in the United States, and their market share is increasing year by year. James is also doing well. In May last year, the MP550-HDD-18 cement delivery pump supplied by their company to a local construction company often failed to reach the rated value for the system pressure during use, and the oil pressure of the hydraulic system can only reach 12MPa. After disassembling the hydraulic system, the engineer found that the joint surface between the conical pilot valve body and the valve seat of the hydraulic relief valve was grinded out with a circle of uneven groove line with a depth of about 1mm for unknown reason. The hydraulic oil flowed back to the oil tank from this groove, and the hydraulic relief valve had no sealing function. The customer wanted James’s company to replace the hydraulic relief valve of the same model within 2-3 weeks. If they miss the time, the project progress will be affected. When James purchased this hydraulic relief valve from the original German hydraulic valve supplier again, he was told that they produce this hydraulic relief valve no longer. If he wanted to re-produce it, it would take 35 days and modify the production process and auxiliary equipment, which would require an additional cost of more than 30,000 US dollars. This style of hydraulic relief valve was just purchased by James 2 years ago. When he reported this situation to the president, the president didn't understand why he didn't have an alternative hydraulic valve manufacturer. James realized that the president was unhappy. When he sent the anatomical drawing of this hydraulic relief valve to more than 20 hydraulic valve manufacturers, almost all said that they have no hydraulic relief valve with such structure, James was a little flustered. In March this year, James just purchased a batch of high-precision hydraulic relief valves from AAK. He wanted to see if AAK had a way to solve this thorny problem. When he sent us the pictures of this hydraulic relief valve made in Germany, we asked him to send us the whole complete technical drawings, as well as the use environment and working conditions. The pressure of this hydraulic relief valve is 31.5Mpa and the flow is 200L / min, which is basically consistent with the parameters of the hydraulic relief valve we supplied to them before. However, there is a fatal problem that the internal structure, appearance, shape and size are inconsistent with those of the hydraulic relief valve they purchased in Germany, so it is difficult to install on the transmission line. After learning that the only way is to meet the requirements of the transmission line at the construction site in the United States, AAK engineers designed a new hydraulic system with two pipe joints and an oil plug according to the diameter and outlet size of the overflow valve of the cement pump and the working pressure, and sent the design of the new hydraulic relief valve to James at the first time. Their engineers were surprised by this idea, and asked us to make a sample quickly. We produced 2 samples of the new hydraulic relief valves in 10 days. After they received the samples, the hydraulic relief valve was installed on the cement pump. After the startup test, the whole conveying system can be used normally. Their customers were very satisfied with the speed of problem solving from James' company this time, and promised that James’s company would be the first choice for the purchase of all hydraulic system equipment, which made his president very happy. After this waving, James said that the president valued him more and more. AAK hydraulic valve has high precision and creativity beyond peers. We guarantee the quality for 3 years of service life. If you have any problems with hydraulic valve, please contact us for a small try. https://www.aakindustry.com/info-detail/hy , draulic-relief-valve-aak111

Akyol is from Turkey, a very competitive market for hydraulic flow control valves. Akyol was very upset about a batch of hydraulic flow control valves purchased from Ningbo China in the second half of last year. The customer complained that there were debris and impurities in the space between the hydraulic flow control valve body and valve spool, causing the hydraulic flow control valve to intermittently jam. The manufacturer of the original hydraulic flow control valve thought that the proportion is not high and they are willing to replenish 10%. However, there were more and more complaints later. Akyol realized that the manufacturing quality of the original hydraulic flow control valve manufacturer is unstable, and regret that they chose an unreliable manufacturer for their cheap price. AAK also received Akyol's inquiry earlier. She initially agreed with AAK's quotation. However, 2 weeks later, we were advised that he found another hydraulic flow control valve manufacturer in Ningbo with more competitive price, so I did not follow up. It wasn't until March this year that I received her email re-confirming the price of the hydraulic flow control valve again, I learned that she had encountered the problem of impurities in the hydraulic flow control valve she purchased from other hydraulic valve manufacturer in Ningbo China. Akyol needs me to ship 120 pcs as soon as possible to solve her urgent needs. This is a model equivalent to HydraForce standard part. We still have stock in our warehouse, and shipped them in 1 week. 2 months later, yesterday, we received a re-order of 600 pcs for the same hydraulic flow control valve. I believe that after going through this round trip, Akyol will continue to place orders with similar hydraulic flow control valves at AAK. The hydraulic flow control valve is most afraid of unstable quality, such as impurities, stuck, unstable flow rate, or having a service life of less than 6 months. AAK controls it from 3 aspects. 1.When precision machining components, AAK has a high-precision honing machine, which not only ensures accuracy but also produces limited impurities. 2.In terms of inspection, coordinate measuring instruments and high-precision projectors are used to check and eliminate hidden problems before assembly. 3.Before shipment, each hydraulic flow control valve needs to go through AAK updated test bench for flow and pressure testing. If there are any abnormalities, it will automatically remind and eliminate human errors, while the vast majority of hydraulic flow control valve manufacturers just rely on the experience of testing personnel to make judgments. AAK hydraulic flow control valve, no impurities, you can also give it a try! AAK HYDRAULIC VALVES (606) 2023-06-15 https://www.aakindustry.com/info , -detail/hydraulic-flow-control-valves-aak606

AAK uses Rockwell hardness tester to check the hardness of each part of the hydraulic valve, so that the hardness of each heat-treated alloy steel is "exposed". Nearly 90% of domestic hydraulic valve manufacturers are not equipped with this Rockwell hardness tester with the highest accuracy. An Italian hydraulic valve customer, who disliked the expensive price of AAK, purchased the high hardness hydraulic directional valves from another hydraulic valve manufacturer but suffered loss from poor quality, he finally returned to AAK to place an order. Because of the common problem of unstable heat treatment in the industry, the hardness test of hydraulic valves with high requirements for stability is very important. Most hydraulic valve manufacturers can't grasp the details of hardness testing. They don't have high-precision hardness testing instruments, just checking the hardness by experience. They often put on-line production without knowing the hardness of materials is not up to standard due to human errors. Harvey is a hydraulic valve purchaser from Italy. In particular, there are many inquiries for hydraulic directional valves, and the hardness requirements for hydraulic directional valves are particularly high, with few requirements below 65HRC. Since last year, he has sent AAK inquiries for hydraulic directional valves every 2 weeks, all of which are 65-68HRC hardness indicators. Strangely, there were 10 inquiries for hydraulic directional valve, but no order was placed with AAK. Every time we followed, the reply we almost received was "the price is too high and will not be considered for the time being". We realized that this is not our customer. In June this year, Harvey sent an inquiry for the hydraulic directional valve with 68HRC hardness index, which is very similar to the 68HRC hydraulic directional valve inquired last year. We didn't quote the same day and intended to give up. The next day, he emailed again to ask whether his inquiry had been received. We replied that the AAK price doesn't meet your goal. We won't make an offer for the time being. Let's make friends. Harvey probably realized that AAK didn't want to waste time, he told us the truth frankly. There was a problem with the 68HRC hardness hydraulic directional valve he purchased from another hydraulic valve manufacturer. Strangely, the thickness measured in the shipping inspection link was up to standard. After the customer received the shipments of hydraulic directional valve, there were continuous complaints, all of which were due to the instability of the hydraulic system caused by unqualified hardness. From his description, I felt that there was something wrong with the testing instrument and asked him to send samples to us for testing. He was surprised when he learned from the other hydraulic valve manufacturer that there was no test report for 68HRC hardness. Before placing the order, Harvey's colleague visited the hydraulic valve manufacturer, who has its own heat treatment processing plant, and the heat treatment testing link is also equipped with a Leeb hardness tester to check the hardness. The price of their hydraulic directional valve was 6% cheaper than AAK HYDRAULIC VALVE, so order was placed with this hydraulic valve manufacturer. Harvey was curious about how we detected that these hydraulic directional valves did not have a hardness of 68HRC. AAK has been engaged in the hydraulic valve industry for so many years, wholeheartedly pursuing product quality and checking step by step from material selection. In terms of hardness index, it not only has its own exclusive heat treatment plant, but also has its own exclusive quenching and tempering heat treatment process. Through the combination of quenching and tempering at different temperatures, the hardness of materials can be greatly improved. At the same time, the testing equipment is equipped with Rockwell hardness tester with the highest accuracy in China. The hardness testing range is HRC 20 ~ 70. As long as the hardness requirement is within this range, the test error will not exceed +/- 0.1HRC, while the detection range of Leeb hardness tester used by most hydraulic valve manufacturers is HRC 20.4-67.1. If the hardness exceeds this range, the test data is distorted. In high precision, we benchmarked Eaton Vickers directional hydraulic valve. Harvey suddenly understood and hoped that we could maintain the original quotation for this inquiry for the hydraulic directional valve, and asked us to arrange samples of the hydraulic directional valve within 10 days and send them to his customers for testing. 3 days later, Harvey sent the order for the hydraulic directional valve. He said that he recognized the product hardness of AAK hydraulic valve very much, and would send the inquiry of 68HRC hydraulic directional valve to AAK only in the future. AAK HYDRAULIC VALVE has a rigid heart never compromising on quality and high- precision equipment. You can buy at ease, use at ease, worthy of a try. https://www.aakindustry.com/info-detail/hy , draulic-directional-valve-aak110

Arda, from Turkey, has been purchasing hydraulic cartridge valves from China for 2 years smoothly. However, Arda has encountered difficulties in a hydraulic directional control cartridge valve. Last August, their company developed a mining hydraulic support, which requires hydraulic directional control cartridge valve. Arda purchased it from an old hydraulic cartridge valve manufacturer. The system impact was large during the equipment commissioning. After the engineer optimized the hydraulic system, the hydraulic directional control cartridge valve was required to have the secondary unloading function. The original manufacturer said that this hydraulic directional control cartridge valve is equivalent to a standard part of HydraForce, and the HydraForce original one has this function neither. Arda contacted other cartridge valve manufacturers, but no result. Arda left a message on AAK website: Does AAK hydraulic directional control cartridge valve have the secondary unloading function? Similar problem was solved by AAK for a Russian customer last year, and we sent Arda the internal structure diagram of the similar valve. Arda saw the hope and asked AAK to make sample according to his drawing of the hydraulic directional control cartridge valve. After 40 days, AAK sent 18 samples of hydraulic directional control cartridge valves. 4 weeks after the samples of the hydraulic directional control cartridge valve were sent, Arda informed us that their engineer was satisfied with AAK hydraulic directional control cartridge valve, especially the secondary unloading function, had solved their system impact well and the hydraulic support was stable. AAK hydraulic directional control cartridge valve has two-stage unloading function, which divides the high-pressure liquid energy from the original release into two releases, and the sealing is skilled. Such hydraulic directional control cartridge valve has 3 main selling points: small pressure impact, small leakage and good sealing. The biggest advantage is that its service life is twice that of the original cartridge valve manufacturer. 1. AAK hydraulic directional control cartridge valve is equipped with the first valve spool and the second valve spool. The first stage unloading is the second valve spool is opened, and the first valve spool is not opened, which can reduce the hydraulic impact. The second stage unloading is the first valve spool is fully opened, which can significantly expand the liquid flow channel, so that the oil pressure is reduced. 2. The valve body of the hydraulic directional control cartridge valve is provided with a liquid inlet and a liquid outlet. The liquid inlet is connected with the liquid storage chamber of the valve spool assembly through the first liquid guide hole. The liquid outlet is internally connected with the first valve spool of the valve spool assembly through the second liquid guide hole on the valve sleeve. The end of the valve sleeve is provided with a second damping hole, which connects the first valve spool with the connecting hole on the valve body. 3. The valve body and valve spool assembly are sealed by multiple groups, and the valve spool and valve seat are sealed by cone matching. When the hydraulic directional control cartridge valve is supplying liquid in the forward direction, the first valve spool is pushed away from the first valve seat to establish a forward liquid flow channel. When the liquid supply is stopped, the first valve spool is reset to block the liquid storage chamber and the second liquid guide hole, thus realizing the sealing function. AAK hydraulic directional control cartridge valve has 3 main selling points and 1 major benefit. You can also try it! https://www.aakindustry.com/info-detail , /directional-control-cartridge-valves- aak518

Today, we’d like to introduce a solenoid cartridge valve equivalent to HydraForce standard part SV10-20. It is a solenoid-operated, 2-way, normally closed, poppet-type, screw in hydraulic cartridge valve, with standard (sv10-20) and manual override (mo) options. This valve intended as a blocking or load holding device for low flow circuits having pull-only manual override requirements for handles or cable linkage. The features of this solenoid cartridge valve: Continuous-duty rated coil. Hardened seat for long life and low leakage. Optional coil voltages and terminations. Efficient wet-armature construction. Cartridges are voltage interchangeable. Unitized, molded coil design. Manual override option. Optional waterproof E-Coils rated up to IP69K. Industry common cavity. Position sensor option. The function of this solenoid proportional valve: When de-energized, the SV10-20X acts as a check valve, allowing flow from port 1 to port 2, while blocking flow from port 2 to port 1. When energized, the valves poppet lifts to open the port 2 to port 1 flow path, while flow from port 1 to port 2 is severely restricted. AAK has received 6 inquiries for this solenoid proportional valve within only 2 months, from August to October 2023, with 3 customers placed trial orders. This hydraulic solenoid cartridge valve is not only widely used, but also has multiple functions, especially its good performance. Although many hydraulic cartridge valve manufacturers in China can produce this hydraulic solenoid cartridge valve, and its functions may also be compared to HydraForce standard part SV10-20, their solenoid cartridge valve performance may be a problem. AAK hydraulic cartridge solenoid cartridge valve 2 advantages: 1. Internal leakage: 3 drops/min, benchmarking against HydraForce 2. Its service life is 2 times that of its peers Technical parameters of AAK E-SV10-20 Hydraulic Solenoid Cartridge Valve: Max. Operating Pressure: 207 bar (3000 psi) Flow: See PRESSURE DROP VS. FLOW graph Internal Leakage: 3 drops/min max. at 207 bar (3000 psi) Cavity: 10-2  AAK E-SV10-20 solenoid cartridge valve, benchmarking HydraForce, within 2 months, received 6 inquiries, and 3 customer trial orders. You can also try it out. AAK HYDRAULIC VALVES (714) 2023-11-13 https://www.aakindustry.com/info , -detail/solenoid-cartridge-valves-aak714

Some time ago, Steven, from a Hydraulic Valve Company in UK, fell in a batch of hydraulic directional valves purchased in Ningbo. There had some email communication between AAK HYDRAULIC VALVE and Steven, but maybe the fate has not yet arrived, we did not cooperate until last month this year. Steven regained his confidence because he had suffered a waterloo and got back a key game here in AAK. At the beginning of this year, a batch of hydraulic directional valves purchased by Steven in Ningbo were stuck and failed during the test run, resulting in the failure of the whole batch of equipment to start up and run. His customer asked UK company to solve it within 30 days, otherwise there will be a big claim. Steven informed the original hydraulic valve manufacturer of these conditions, but the manufacturer prevaricated that it was a problem caused during the assembly process and had no direct relationship with them. Steven also consulted other hydraulic valve manufacturers. They either replied that the hydraulic valve was not produced by them and could not give the corresponding strategy, or there was no reply. Steven received serious rebuff here and there, and feel stressed. When Steven contacted AAK HYDRAULIC VALVE, we were willing to cooperate with him to solve this problem because we felt his trust in AAK HYDRAULIC VALVE. Through his email description, we were still not sure what the problem is, and asked him to send us samples. After AAK HYDRAULIC VALVE received the hydraulic directional valve samples from Steven, we felt that the relative sliding between the middle valve column and the valve body was not smooth. When the whole hydraulic directional valve is disassembled, there are slight scratches on the column surface, the valve body hole has a negative tolerance, and the valve body column hole has plastic distortion. Further microscopic examination showed that the surface of the material was etched badly. It is certain that the original hydraulic valve manufacturer has problems in material selection and heat treatment of alloy steel. Then we informed Steven of the result in a report and attached our suggestions for this style of hydraulic directional valve. After receiving the report, Steven seemed to see hope and asked us to make 5 hydraulic directional valve samples for his customer to run successfully first. After knowing the working conditions of this hydraulic directional valve, we adjusted the material selection of alloy steel, and increased the overall hardness of the hydraulic directional valve by 30% on the original basis. 1 week after Steven received the samples, he informed AAK HYDRAULIC VALVE by e- mail that the hydraulic directional valve samples made by AAK were started up smoothly as soon as they were tested on the machine. When the new delivery date and order quantity were confirmed by his customers, he was finally relieved. At the same time, he wanted to know how AAK would produce each hydraulic directional valve of the same quality as these samples in mass production. In terms of material selection, according to the working conditions of hydraulic valve, AAK HYDRAULIC VALVE set the material composition requirements with computer program, and then use metallographic sample for comparative analysis to detect the selected alloy steel. For the heat treatment of alloy steel, the same batch of steel shall be heat treated at the same time, without splitting batch or section. In terms of quenching and carburizing, the carburizing gas composition of alloy steel is changed according to the aging temperature and holding time of the process, and the carburized alloy steel is controlled not to retain excessive austenite during heat treatment, so as to ensure the stability of the whole alloy steel. AAK can achieve the aging temperature of 420 ℃ and thermal insulation of more than 10h. Basically, more than 95% of the hydraulic valve manufacturers can not meet this process index. After Steven got AAK's reply, he finally put down the heart that was uneasy for more than 20 days. The owner appreciated that he solved the difficulty on the hydraulic directional valve order within the time specified by the customer, and gave him a week's holiday to relax. AAK HYDRAULIC VALVE factory is the first choice for hydraulic directional valve. Actually, its quality has been recognized by Hydra Force, it is reassuring to use it. You can also have a small try. https://www.aakindustry.com/info-detai , l/hydraulic-directional-valve-aak109

Some time ago, I heard or saw a few stories. Today, I want to share my experience of AAK hydraulic manifolds. The story of a peer. 2 years ago, there was a bidding under the framework of the Belt and Road, involving a bidding of more than 1 million dollars for hydraulic manifolds. This hydraulic manifold is very conventional, which is equivalent to standard parts. Because the price is too low, AAK hydraulic manifold gave up directly. A hydraulic manifold manufacturer in Ningbo received about 1/3 of the orders. After the hydraulic manifolds were shipped to abroad, there was a quality problem. The manufacturer knew that the whole batch of hydraulic manifolds was completed by several factories, so he assumed that it was not produced by him. The story of a famous person. Yang Lan and her husband Wu Zheng, a glamorous couple, attended a private royal banquet hosted by Prince Charles of England a few years ago, and promised to donate 1 million pounds. But after the banquet, they replaced this one million pounds with something. Prince Charles said that he had never seen such a shameless person. The story of a famous enterprise. In November 2018, Xiaomi Company launched a promotion campaign of "1 pound rush to buy Xiaomi 8" in order to expand the British market. However, at the time of rush purchase, the screen always showed "robbed" when the rush purchase button was pressed. No one can buy the Xiaomi 8 mobile phone for 1 pound. Maybe most people think they are slow, they can't prove each other. However, in the UK, keyboard warrior cracked the code of the flash buying website. He was surprised to find that no matter how fast you snap up, you are doomed to fail to snap up. The above 3 stories, no matter they are manufacturers, celebrities or famous enterprises, are ugly and derived from cleverness. Many times, we have been numb by such behaviors. Now those engaged in international business, who are used to cheating at home, will also bring this bad habit abroad, thinking that they are smart enough to bring big profits. That would be a wrong calculation. The behaviors derived from these cleverness are the manifestation of immorality and "evil". Why is a person evil? They are usually obsessed with reaching their goals without a bottom line. He has set goals, such as not taking responsibility, earning fame, making money, etc. These goals will lock him in a way. Since he is on the same road, he will sooner or later meet people who have no bottom line and are worse than him. He has no place to hide, then he will be unlucky.   AAK hydraulic manifolds, each product, no matter the hydraulic cartridge valve, or valve block, or hydraulic manifold, carries the AAK marking and manufacture date. AAK disdains the shirking of the above peer. Whether as an enterprise or an individual, we should be good. Goodness has no specific direction, no matter to customers, suppliers, employees or friends. If you release goodwill without direction, you may get rewards from all directions. Those who can succeed depend on themselves, and those who are good depend on God. I think that's what I mean. God does not refer to God or immortals, but refers to the uncertainty of things to rely on. Good and evil are not two ends of a line, but one is narrow and one is extremely broad.  AAK hydraulic manifolds, relying on trust, do good deeds and make friends. https://www.aakindustry.com/info-d , etail/hydraulic-manifolds-aak444

The valve spool hardness of AAK hydraulic flow valves reached 65HRC, the German customer Felix was impressed after receiving the first batch of shipments. Last week, he placed a reorder for 9,600 hydraulic flow valves, with a total value of more than 60,000 US dollars, and regarded AAK as his preferred supplier for hydraulic valve purchasing in China. In the hydraulic valve industry, more and more hydraulic valve manufacturers focus on homogeneous hydraulic valves, resulting in a decline in the level of hydraulic valve material selection and material reprocessing technology. Many hydraulic valve manufacturers think that their valve spool hardness meets the standard, but problems come out when they make samples or run production. The reason why most of hydraulic valve manufacturers can not solve the hardness problem well, mainly is: 1) without professional and systematic material knowledge, don't know how to choose the most suitable alloy steel material. 2) In the heat treatment of materials, most of them are led by the processing plants, mainly because the heat treatment is outward processing, and 20% of the outward processing is to change a place with one shot, and the hardness can not be guaranteed at all. Before the first cooperation with AAK, Felix consulted no less than 30 hydraulic valve manufacturers for the hydraulic flow valve with 65HRC valve spool hardness within 1 month. Only 2 said that 58HRC was the limit they can achieve. As for the other hydraulic valve manufacturers, no any feedback at all. Felix was extremely disappointed. When browsing the B2B website, Felix accidentally encountered an article about AAK HYDRAULIC VALVE. The article mentioned that 30 factories could not make the valve spool with a hardness of 65HRC, but AAK HYDRAULIC VALVE had already achieved in mass production, which made him curious about how the AAK HYDRAULIC VALVE can be different. Felix learned that AAK has its own set of SOP for the selection of valve spool materials. Unlike the other hydraulic valve manufacturers, who use one material for nearly all hydraulic valves. AAK will select the most suitable steel according to the working scene of hydraulic valve, the medium used and the hydraulic parameters of customers, combined with the wear resistance, linear expansion coefficient and deformation of different steel, such as Cr12MoV, 12CrNi3A 18crniwa, GCr15 and other high-grade tool steels. More importantly, AAK HYDRAULIC VALVE has its own heat treatment plant, which can adopt different heat treatment methods in quenching, carburizing and nitriding according to different contents of steel. For example, pretreatment, quenching, cold treatment, tempering, aging, fine processing and other secondary aging, the aging temperature and holding time of these processes are the key. AAK can achieve the aging temperature of 420 degrees, holding for more than 10h, and also obtain the hardness of 65HRC or above. It is difficult for other hydraulic valve manufacturers to have this process flow or operation technology. Felix knows very well that if the valve spool wants to reach the hardness index of 65HRC, the hydraulic valve manufacturer must solve the above two key points at the same time, and AAK HYDRAULIC VALVE is what he thinks. Felix sent us the design drawings of hydraulic flow valves with a try attitude. During sampling period, he asked us to adjust the parameters and proofing twice. Finally, he only confirmed the small order of 200 hydraulic flow valves. One month after receiving the shipments, Felix emailed us that his customers were very satisfied with AAAK valve spools, and each valve spool was stable at the hardness index of 65HRC. From the delivery of the first batch of hydraulic flow valves to now, it has been only more than 3 months. We did not expect that the quantity of the repeat order for the hydraulic flow valves has increased by 5 times, which is undoubtedly the best recognition of AAK hydraulic quality. AAK hydraulic valve has advantages and promises. Also, AAK hydraulic valve has a service life longer than over 90% of its peers. If you need it, please give it a try. https://www.aakindustry.com/info-detai , l/hydraulic-flow-concrol-valve-aak108

When I arrived at the office yesterday morning, an international parcel from Turkey arrived. It was sent by Colin. This guy didn't inform us in advance when he sent samples every time. I opened the package and found two hydraulic directional control valves, one complete and the other dissected. This is not the hydraulic directional control valve we shipped. After he goes to work, I will ask Colin about the situation. After communication in the afternoon, it was learned that their hydraulic hammer was complained about by users after in use for about 8 months. The valve spool of the hydraulic directional control valve was worn and there was a leak, which caused abnormal function of the hammer. The manufacturer of this hydraulic directional control valve stated that based on the working pressure and frequency, it is normal that the service life of the valve spool is about 8 months. Colin can accept the explanation from the original hydraulic directional control valve manufacturer, but he wants a valve spool with a service life of more than 1 year, so he sent AAK the samples of the hydraulic directional control valves to check the possibility. After knowing the specific working conditions, as well as the frequency of use of hydraulic crushing hammers, combined with the valve spool materials from the original manufacturer and processing accuracy, our engineer agreed that a service life of 8 months is indeed normal. Colin quickly understood what we meant, and immediately asked, what material will AAK use to produce hydraulic directional control valve spool? Can the service life of the valve spool be more than 1 year? I appreciate his quick response and responded with a smile: as long as the material selection and processing of the valve spool are in place, the service life of the hydraulic directional control valve spool will be worry free for more than 1 year. We have a program for this hydraulic directional control valve, and we only need to customize the valve spool with attention to detail to meet Colin's requirements. Within 25 days, AAK delivered the test order for 80 hydraulic directional control valves. Colin comes to AAK every time he has difficulties, and has never been disappointed. Of course, he has also purchased many batches of other hydraulic directional control valves from AAK This hydraulic directional control valve, AAK uses silicon nitride (Si3N4) ceramic ball valve spool, replacing the steel ball valve spool of the original hydraulic directional control valve manufacturer. In terms of parameter comparison, ceramic ball valve spool is superior to steel ball valve spool, but it is difficult to process and have high costs. Most hydraulic directional control valve manufacturers do not choose ceramic ball valve spools. The hardness of the ceramic ball valve spool is twice that of the steel ball spool, and it is wear-resistant with a small coefficient of friction. Its coefficient of thermal expansion is at least 30% lower than that of steel ball, which makes it more durable, even under high pressure and high frequency conditions, it is also safe. The corrosion-resistant, wear-resistant, and durable silicon nitride (Si3N4) ceramic ball valve spool is the most suitable for this hydraulic directional control valve. Although the cost of the valve spool is more than 3 times higher, AAK would rather spend more costs and reduce profits to ensure the service life of the hydraulic directional control valve. The customer has no complaint, in fact, AAK has also made a profit, because there are more re- orders. AAK hydraulic directional control valve, valve spool is corrosion resistant, wear resistant, and durable. You can also give it a try! AAK HYDRAULIC VALVES (605) 2023-06-13 https://www.aakindustry.com/info , -detail/hydraulic-directional-control-valves- a , ak605

Bekov is from a Russian hydraulic equipment company. Most of the hydraulic manifolds in the past 3 years were purchased from Ningbo and went smoothly. A batch of hydraulic manifolds purchased last time stumped him due to the precision of valve block holes. At the beginning of the year, their customer customized a hydraulic power unit. From the perspective of hydraulic manifold alone, it was not difficult, but the requirements for the accuracy of the valve block bore diameter were high. He chose a hydraulic manifold manufacturer in Ningbo who had cooperated for 3 years to place the order. He thought that the PO was confirmed by the supplier and his work was completed, but from the start of the sample, trouble came. After 50 days, the hydraulic manifold manufacturer advised that he could not achieve the accuracy of the valve block aperture. After the processing of 10 valve blocks, only 2 of them were qualified, and 80% of them were scrapped, so he had to give up. The supplier seems to be relieved, but it is less than 3 months from the customer's delivery date, and the hydraulic manifold supplier has not been determined yet. A week later, Bekov contacted more than 10 hydraulic manifold manufacturers, but none of them were confident to accept the order. Bekov was extremely anxious. Last month, I received an email from my old Russian customer Sumarokov: Aperture φ 10.3mm, hole depth 90.5mm, coaxiality requirement: φ 0.025mm, cylindricity requirement is φ 0.02mm, surface roughness Ra value is 0.8 μm, these precision requirements should not be difficult for AAK, right? I was a little confused. After communication, I learned that Bekov, a friend of Sumarokov, faced the problem of aperture accuracy when purchasing hydraulic manifolds. I replied to Sumarokov, with your trust, I will solve the problem as quickly as possible to ensure that Bekov is at ease. According to the series of drawings of hydraulic manifold from Bekov, besides the aperture accuracy, all the others are conventional parts. However, AAK encountered this aperture precision in processing valve blocks 3 years ago, so now it is fine for AAK. After 45 days, the hydraulic manifold sample is sent out. The day before yesterday, Bekov sent an email. The accuracy of every hole diameter processed by AAK was approved by their engineer. AAK hydraulic manifold was installed on their hydraulic power unit, and the equipment was running normally, just waiting for the purchase quantity of their customer. AAK hydraulic manifold valve hole precision is ahead of its peers, which originates from 3 points: 1. Material selection control: before processing, ensure that the material is free of casting defects and the blank allowance is uniform. Optimize the processing and cutting parameters according to the accuracy. 2. Equipment selection: Mikron machining center imported from Switzerland can ensure that the coaxiality of fixture and equipment rotation and cutter bar is controlled within 0.01mm, and the coaxiality of precision valve hole is controlled within φ 0.025mm. 3. Process optimization: from drilling, reaming, rough reaming, fine reaming, reaming and extruding without edge, 5 links. The increase in outer diameter of each link shall be controlled at 0.02 mm, and kerosene cooling shall be adopted. It replaces the traditional process of "drilling, reaming, countersinking, reaming and grinding", and avoids the expansion of orifice and instability of aperture. AAK hydraulic manifold, not only precision, you can also try a small order! https://www.aakindustry.com/info-det , ail/hydraulic-manifolds-aak386