Valves

Mason, an old customer of hydraulic valves from the United States. In March this year, he was not satisfied with the quotation of one of our hydraulic valve blocks, which was nearly 7% higher than his target price, so he didn't place an order with AAK HYDRAULIC VALVE. Unexpectedly, he sent an email last week asking whether our quotation of hydraulic valve block in March was still valid. We replied that you were our old customer and the price must be valid. Mason also frankly told us that there was a problem with the hydraulic valve blocks he purchased, which made him very headache now. After communication, we learned that there were no problems in the preliminary test and shipment inspection on the hydraulic valve blocks produced by his previous hydraulic valve manufacturer. In the recent month, users had gradually reported that after setting up and debugging, the surface of the hydraulic valve block fell off paint, rusted, and even there was pollution inside the hydraulic system. Nearly 60% of the 300 hydraulic valve blocks purchased had this situation, and only 40% were still on sale. His boss found something wrong and suspended the sale of the remaining products. The hydraulic valve manufacturer believed that this was caused by the improper use of the hydraulic valve block by the user, and was only willing to replenish 10% of goods to solve this problem. His boss asked him to find a qualified hydraulic valve block supplier as soon as possible. Because the use scenario of this hydraulic valve block was special, Mason knew that AAK HYDRAULIC VALVE could solve this problem, but his did not have authority to pay a 7% higher price. He contacted no less than 10 hydraulic valve manufacturers, and only 3 of them replied. They could solve the paint falling and rust spots on the surface of the hydraulic valve block, but the internal pollution could not be 100% avoided because they did not know the user's operation. The remaining hydraulic valve manufacturers did not give any reply at all. Mason was very helpless. He had to bite the bullet and asked his boss for help if the purchasing price could be raised. When his boss learned about the whole purchase process, he asked Mason, why he did not report this situation in March? After the delivery date provided by AAK HYDRAULIC VALVE was agreed by his users, Mason sent us the order for this hydraulic valve block, and asked us to ship as early as possible. At the same time, his boss was curious about how we did it. The anti-rust treatment of AAK hydraulic valve block in the past is the same as that in other factories, which adopts surface painting or conventional electroplating treatment. The pain point of this process is that the hydraulic valve block is easy to be scratched, causing corrosion and increasing system pollution. We understand these potential problems of this process, and our technical team adheres to the new process exploration, so that AAK now has its own unique anti-rust technology. With the increasing requirements for product aesthetics and pollution control, AAK HYDRAULIC VALVE has its own proprietary anti-rust treatment technology, it electroplates a 0.02 ~ 0.03 mm thick special coating on the surface of the hydraulic valve block. This coating has excellent adsorption, not easy to fall off and also bright appearance. Only on this point, AAK has crushed most peers. For the production of hydraulic valve block, AAK has proprietary anti-rust technology, which is enough to reassure you. You can have a small try.

Barnaby is from Brazil, has purchased hydraulic threaded cartridge valves in Ningbo for 5 years. He has purchased several standard parts of SUN cartridge valves from AAK. He always thinks that AAK cartridge valves are expensive. At the beginning of last year, the customer complained that their hydraulic cartridge valve, installed in the hydraulic power unit, had leaked in 6 months. The original hydraulic cartridge valve manufacturer said that the seal ring structure was damaged in the assembly process, and the seal ring could only be replaced, but after 1 month, there was leakage again. Barnaby realized that the hydraulic threaded cartridge valve from this manufacturer has a service life of only 6 months. The boss is not satisfied with his purchase. There are always complaints from customers. Barnaby feels the pressure from the boss. Barnaby emailed me in August last year: Can AAK ensure that each hydraulic threaded cartridge valve has no leakage within 1 year? After communication, we learned that he was facing difficulties in purchasing from Ningbo cartridge valve manufacturers. According to the cartridge valve manufacturers he mentioned, I admit that the price of AAK hydraulic threaded cartridge valve is about 20% higher than those of these peers. However, I guarantee that the service life of AAK hydraulic threaded cartridge valve is twice that of its peers. Barnaby's hydraulic threaded cartridge valve has a service life of 6-8 months if it is sealed in a conventional or universal way. AAK rarely uses traditional methods but to optimize the sealing method of the original hydraulic threaded cartridge valve, which has a service life of at least 12 months. After 45 days, AAK sent 38 hydraulic thread cartridge valve samples and promised to refund the full amount of the fee if there was leakage within 12 months. The day before yesterday, Barnaby emailed me that the customer had been using AAK hydraulic threaded cartridge valve for nearly 6 months, and there was no complaint. I told him that there would be no complaint in another 6 months, and did not say anything else. Unexpectedly, he listed 12 standard parts of SUN hydraulic thread cartridge valves yesterday for us to quote. This is an action that Barnaby has never done before. By the way, for this type of hydraulic threaded cartridge valve, AAK sealed it as below. Most of the cartridge valve manufacturers in Ningbo do not use this sealing method or structure. 1. Selection of sealing material: The material of O-ring is made of PU polyurethane rubber sealing ring made in Japan, and the material of retaining ring is polytetrafluoroethylene. Although the cost of these materials is more than twice that of general materials, AAK insists on selecting the most durable material to ensure the service life of hydraulic threaded cartridge valves. 2. Innovation inside the valve body: the regulating and driving device of the hydraulic thread cartridge valve is installed in the valve sleeve, and the valve spool is of inverted cone structure. 3. Optimization of sealing mode and structure: the sealing ring group is composed of O-ring and retaining ring. The sealing ring group is between the valve sleeve and the valve spool, and the retaining ring is of double-sided structure. The retaining ring not only seals, but also protects the O-ring from being squeezed. With the protection, the O-ring is not easy to be deformed and damaged, and the O-ring can avoid to be cut during installation. AAK hydraulic threaded cartridge valve, although 20% more expensive, its service life is twice as long as that of other hydraulic cartridge valve manufacturers in Ningbo China. You can also try it! https://www.aakindustry.com/info-detail , /cartridge-valves-aak512

9 months ago, we received an email from an old customer in the UK, informing that Berge had transferred from the quality control department to the import department. We could see from the email of the young man's self-introduction that he was full of confidence in procurement. Unfortunately, the first hydraulic valve order went wrong. A batch of orders for hydraulic flow valves shipped from a hydraulic valve manufacturer in Ningbo had no problem when tested before leaving the factory. However, when the goods were delivered to customers, the company received a series of quality complaints from consumers in only 1 month, and nearly 20% of the hydraulic flow valves had leakage. The boss was not very happy, and requested Berge to solve the guest's complaints within 1 week. Berge had discussed with the original hydraulic valve manufacturer several times, but it has not been effectively solved, and he even wanted to resign. Shawn, a former old purchaser, felt his frustration and reminded him to communicate with AAK HYDRAULIC VALVE to see if it could be solved. We received Berge's email with product drawings, pictures and test data of the defective hydraulic flow valves. We preliminarily judged that there was a problem with the valve spool. In order to solve the problem at one time, Berge asked his hydraulic valve manufacturer to send 5 samples of defective hydraulic flow valves to AAK HYDRAULIC VALVE for thorough inspection. After receiving the hydraulic flow valve samples, frankly speaking, the main line type of the hydraulic flow valve was acceptable. The problem was that the valve spool deviated from the central axis, resulting in leakage. Of the 5 hydraulic flow valve samples sent, two were in this situation, and the other three were of acceptable quality. This proved what we said before that it was difficult to 100% ensure that the valve spool did not deviate from the central axis due to human error, which was a hidden problem among peers. I suggested him to replenish 40% hydraulic flow valves to their customer within 30 days. If the customer could accept this suggestion, we would give priority to the production of these replenished hydraulic flow valves. A week later, Berge informed by email that his boss had agreed to the plan and his customer could accept only 20% replenishment. They just repeatedly stressed that the replenishment of the hydraulic flow valve could not have any quality problems. AAK realized a few years ago that the hydraulic flow valve produced by CNC lathe has high requirements for operators and is prone to human errors, resulting in the deviation of valve spool from the central axis. On the production equipment, AAK HYDRAULIC VALVE have imported the Swiss machine tool with the highest precision to make up for the short board of CNC lathe. At present, less than 10% of the peers have this equipment. It can replace 7 groups of accessories at random. The high-pressure hydraulic flow valve produced by Swiss equipment has high precision, which is at least 20% higher than that of domestic conventional CNC lathe. Not only the precision is high, but also the stability is guaranteed. Last week, we received Berge's good news email. The customer was very satisfied with the replenishment of the hydraulic flow valve, and the boss was also very happy. Berge also joked with us that it was thanks to us AAK HYDRAULIC VALVE, otherwise he would have changed his job. AAK hydraulic flow valve, our old customers have been purchasing because of trust. You can also have a try. https://www.aakindustry.com/info-detai , l/hydraulic-flow-valve-aak99

Blade is from Canada. He has been purchasing hydraulic components successfully for 3 years. Unexpectedly, a hydraulic cartridge directional control valve stumped him. In the second half of last year, a batch of their hydraulic logistics lifts were complained by customers, some of them were unable to work, probably because the hydraulic cartridge directional control valve leaked. After checking, it was found that the valve spool was deformed. The original manufacturer of the hydraulic cartridge directional control valves said that it had been shipped for 9 months, and some exceptions were inevitable. It is possible that the internal stress of the valve spool was not eliminated in time during the heat treatment process, resulting in deformation or cracking of the valve spool. However, there are more and more complaints later. Blade realized that the service life of the hydraulic cartridge directional control valves from the original cartridge valve manufacturer may be about 1 year. He had to find a new hydraulic cartridge directional control valve manufacturer with a service life of 2 years. A week has passed, and no one can guarantee a 2-year life span. Blade found AAK when browsing Google. He noticed that AAK was continuously supplying HydraForce, and left a message: Can AAK ensure that each hydraulic cartridge directional control valve spool is free of deformation or cracking within 2 years? I guess he encountered trouble in purchasing hydraulic cartridge directional control valves. After communication, I learned the above information. I replied that the life expectancy of 2 years should not be a big problem. Blade sent the drawing of the hydraulic cartridge directional control valve and asked for the lead time for 10 samples. After 45 days, AAK sent the samples of the hydraulic cartridge directional control valves, but there was no email from him after that. Last week, Blade suddenly sent an email, and it was a PO for 600 hydraulic cartridge directional control valves. It can be seen that the samples of AAK hydraulic cartridge directional control valve was approved by his customer. The valve spool is the key to long service life of this hydraulic cartridge directional control valve. 1. AAK select 20CrMo material to produce the valve spool. After quenching and tempering, the materials are more conducive to processing. Most hydraulic cartridge valve manufacturers ignore this action. 2. 0.25~0.35mm machining allowance shall be reserved for rough turning, then carburizing, quenching and high temperature tempering shall be carried out, and then the valve spool shall be subject to low temperature cold treatment. The surface hardness of such valve spool is above HRC63, and the residual austenite in the internal structure is eliminated. 3. The valve spool shall be subject to semi finishing, and 0.1-0.15mm allowance shall be reserved during the process, and then the valve spool shall be subject to tempering treatment. The temperature of tempering treatment shall be 320°C, and the temperature shall be kept for 5 hours, which can eliminate the residual internal stress and greatly improve its stability. After tempering the valve spool, the honing machine shall be used for finishing to ensure the accuracy and ensure that each valve spool meets the standard. AAK hydraulic cartridge directional control valve, the valve spool is processed specially, you can also try a small order! https://www.aakindustry.com/info-det , ail/directional-control-valves-aak439

Beardsley is from Canada and has been working with hydraulic cartridge valve manufacturer AAK for 3 years, with an increasing number of inquiries every year. In early July this year, Beardsley asked me if there was a hydraulic cartridge flow control valve equivalent to HydraForce NV08-20? Can AAK complete the production of 300 pcs of hydraulic flow control valves in 20 days? It is the first time that I received such an urgent email from Beardsley, he was very calm in every purchase. After communication, I learned that their new colleague confirmed an order with a hydraulic cartridge valve manufacturer in Ningbo for 300 pcs of hydraulic flow control valves NV08-20. The hydraulic cartridge valve manufacturer promised a delivery time of 25 days, but 30 days have passed. However, the hydraulic cartridge valve manufacturer advised that it will take another 30 days because it is currently the peak production season for the hydraulic cartridge valve manufacturer. The new colleague is out of options and can only seek help from Beardsley. If without inventory and stock, to complete the production of 300 pcs of hydraulic flow control valves NV08-20 in 25 days is really difficult. Most hydraulic cartridge valve manufacturers in China just focus on domestic sales orders, and for export orders, these hydraulic cartridge valve manufacturers usually accept the orders first to fill the capacity gap. Once domestic sales orders arrive, they give priority to the domestic market orders. Beardsley is very aware of the current situation of hydraulic cartridge valve manufacturers in China, so he is very cautious when choosing hydraulic cartridge valve manufacturers, which is also the reason why he is sending AAK more and more inquiries. AAK has the program for hydraulic flow control valve NV08-20, confirmed the order for 300 pcs of hydraulic flow control valves with Beardsley the next day, and the production time is only 18 days. Beardsley asked about the reason for the fast delivery time, and I sent him a video of the machining of the hydraulic flow control valve cage first. The production of the valve cage is carried out by AAK using Japan's Mazak automatic CNC lathe, which does not require old technicians to ensure machining accuracy and the processing of the valve cage can be completed automatically. AAK has improved the feeding tray to a 30 degree angle, and the valve cage's material is arranged on the tray in a line, automatically entering the fixture of the lathe. After the system corrects the positioning, processing begins. After processing, the valve cage is automatically sent out. This kind of automated processing reduces the number of clamping times for technicians, which is more than 40% faster than most processing methods. AAK has been taking action to create hydraulic cartridge valve manufacturers for unmanned processes. Currently, hydraulic cartridge valve manufacturers who do not upgrade to unmanned equipment, may go to the end of their business in 5 years. What we can think of is the unmanned workshop of hydraulic cartridge valve manufacturers, which can minimize labor costs. The factory has fewer employees, greatly reduces management difficulty, and the key is to eliminate human error. I believe that the scale of future hydraulic cartridge valve manufacturers will no longer be measured by the number of workers, with a few or dozens of people. The key is the hydraulic cartridge valves produced in unmanned workshops, which have stable quality and low production costs. Who doesn't love them? I am now replying to Beardsley regarding the reason why AAK produces faster than other hydraulic cartridge valve manufacturers. 1. AAK uses equipment from the Japanese military industry, and I am not aware of the hydraulic cartridge valve manufacturers in Ningbo who have more efficient equipment than this. 2. The quality is equivalent to HydraForce and stable, and AAK is willing to purchase various raw materials in bulk. 3. Unmanned production workshop, with an efficiency 40% higher than most hydraulic cartridge valve manufacturers in China. Hydraulic cartridge valve manufacturer AAK, has 3 major guarantees for fast production, and you can also try it out! AAK HYDRAULIC CARTRIDGE VALVES (705) 2023-10-31 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valve- manufacturer , s-aak705

This week, we’d like to introduce a hydraulic solenoid cartridge valve equivalent to HydraForce SV08-41. It is a solenoid-operated, 4 way, 2 position, direct-acting spool type, screw in hydraulic cartridge valve. Last month, a customer in Russia found AAK when looking for a hydraulic cartridge valve manufacturer in China on Google. He sent us an inquiry with a list of over 40 model codes equivalent to HydraForce standard cartridge valves, the qty is 10 pcs each as the trial order. If testing is OK, the annual order will be 500 pcs – 1,000 pcs. 1 week after we sent the quotes, the customer advised that they feel AAK will be a very good fit for them, and they would like to visit AAK factory in October. Last week, customer came to AAK factory and visited the entire production process, from raw material cutting, rough machining, fine machining, accuracy measuring, cleaning, assembling, function testing to packaging etc. The customer was deeply moved by AAK's rigorous operation. During the meeting, customer placed an order of 500 pcs for a hydraulic solenoid cartridge valve equivalent to HydraForce SV08-41, which is really out of our expectation. We learned that previously, they purchased it from another hydraulic cartridge valve manufacturer in Ningbo China, but the function and performance is not stable. They will need AAK to send 10 pcs for testing first and ship the remaining 490 pcs after the testing.   AAK hydraulic solenoid cartridge valve E-SV08-41 two advantages: 1. Pressure Rating 210 bar (3000 psi), benchmarking HydraForce 2. Its service life is 2 times that of its domestic peers Technical parameters of AAK E-SV08-41 solenoid cartridge valve: Max. Operating Pressure: 207 bar (3000 psi) Flow: See PRESSURE DROP VS. FLOW graph Internal Leakage: ＜82ml/min at 207 bar (3000 psi) Temperature: - 30 to +100 °C (with Standard Buna N seals) Cavity: 08-4   AAK E-SV08-41 hydraulic solenoid cartridge valve, benchmarking HydraForce SV08-41, its service life is 2 times that of its domestic peers. You are welcome to give it a try. AAK HYDRAULIC CARTRIDGE VALVES (704) 2023-10-30 https://www.aakindustry.com/info , -detail/solenoid-cartridge-valves-aak704

FABIA Pneumatic 3 Piece Butt Welding Ball Valve With Thrust Bearing 1. Description: Ball valve is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid regulation and control. 2.Specification: FABIA Valve Parameter List Valve type: Pneumatic 3 Piece Butt Welding Ball Valve With Thrust Bearing Size: 1/8 inch ～ 8 inch Material: WCB,Q235B,2507,A105,CF8(304),CF8M(316),CF3M (316L),CF3(304L),PVC,ZG1Cr18Ni9Ti,ZG1Cr18Ni12M , o2Ti Connection type: Welded connection/flange connection/thread connection/clamp connection Driving model: Manual/Worm gear drive/Pneumatic/Electric Pressure rating: PN1.0～PN64,ANSI CLASS 150-900,JIS10-20K； Temperature: -196℃～540℃ Model: FB-Q.......... 3. Features: Fluid resistance is small, ball valve is one of the least fluid resistance of all valves, even if it is a reduced diameter ball valve, its fluid resistance is quite small. Thrust bearing reduces the friction torque of the valve stem, which can make the valve stem operate smoothly and flexibly for a long time. Sealing performance of the seat is good, the sealing ring made of polytetrafluoroethylene and other elastic materials, the structure is easy to seal, and the sealing capacity of the ball valve increases with the increase of the medium pressure. Valve stem seal is reliable, because the valve stem is only as if rotating without lifting movement, the packing seal of the valve stem is not easy to destroy, and the sealing capacity increases with the pressure of the medium. Because polytetrafluoroethylene and other materials have good self- lubrication, and the friction loss with the ball is small, so the service life of the ball valve is long. Lower mounted valve stem and valve stem head convex step to prevent the valve stem ejecta, such as fire caused by the valve stem seal damage, the convex step and the valve body can also form metal contact to ensure the valve stem seal. Anti-static function: set the spring between the ball, valve stem and valve body, which can export the static electricity generated by the switching process. FABIA Pneumatic 3 Piece Butt Welding Ball Valve With Thrust Bearing 0 FABIA Pneumatic 3 Piece Butt Welding Ball Valve With Thrust Bearing 1

Recently, in Ningbo, the hometown of China hydraulic solenoid valve manufacturers, there was a story about China hydraulic solenoid valve manufacturer expanding production line for new orders, but orders did not come finally. In September last year, the manufacturer welcomed 4 American customers team who visited China hydraulic solenoid valve manufacturers, and it was said that the negotiation went smoothly. Customer will place bulk orders but are concerned about the production capacity of this China hydraulic solenoid valve manufacturer. The manufacturer promised the customer to double their production capacity within 4 months, and the customer was also satisfied and left. Then this hydraulic solenoid valve manufacturer promoted it everywhere, with major customers placing large orders, he needs to buy equipment and build new factories. Almost all hydraulic solenoid valve manufacturers in Ningbo knew this information. I learned that he started buying equipment and building factories, so I started to worry about him. The reason why poor people become poor lies in their cognition and the behavior guided by cognition. Our ancients taught us: ' making a fortune without fanfare.'. But whenever a poor person has a little money in hand, they even tell the world without even getting it! I have a relative who said 5 years ago that his family was going to be demolished. He predicted that he could get 5 million yuan, but the demolition has not been completed yet. My relative didn't have the money at that time, but how the money was distributed and spent was already arranged by him, and he even resigned from his stable job as a security guard for this. He also selected a house and a brand of car, and just waited for the money to arrive and went to pick up the house and car. He also planned to open a restaurant, partner with friends to discuss cooperation, and wait for the money to come in. His high profile is not without any benefits. At least among his peers, he enjoyed flattery and support. The rumors of demolition have fundamentally changed his life and disrupted his entire pace of life. For 5 years, he has been living in longing, but sadly, it is said that the government's plans have changed again and his area will not be demolished. Returning to the China hydraulic solenoid valve manufacturer to buy equipment and build a new factory, last week, the customer informed the manufacturer that they have chosen another China hydraulic solenoid valve manufacturer. When a person is hungry, there is only one worry, but once they are full, there will be countless worries. Because many troubles are resulted from overeating. Whether in business or in the production of hydraulic solenoid valves, making a fortune without fanfare is the kingcraft. AAK, a China hydraulic solenoid valve manufacturer, focuses solely on its own production and manufacturing quality. It eats as much as its capacity, and never greedily eats what is not its own. AAK HYDRAULIC VALVES (598) 2023-06-04 https://www.aakindustry.com/info , -detail/hydraulic-solenoid-valve-manufacturers- aak598

The types of hydraulic cartridge valves can be classified from different angles. Sometimes, buyers who purchase hydraulic cartridge valves are confused. After all, they are not engineers. In order to classify more simply and intuitively, AAK HYDRAULIC VALVE describes the types of hydraulic cartridge valves from the most extensive installation point of view. In this way, we can divide the hydraulic cartridge valves into 3 types: Insert-type, Slide-in and Screw-in. Berge, an old British hydraulic valve customer, was transferred from the quality control department to the import department. He is a very studious buyer. Maybe it's fate, we often discuss some knowledge points about hydraulic valves. Some time ago, he didn't understand that every time, when the domestic hydraulic valve manufacturers receive an inquiry about his hydraulic cartridge valve, they always ask about the type of hydraulic cartridge valve. The question about the type of hydraulic cartridge valve made him very nervous and helpless. Indeed, there are many types of hydraulic cartridge valves now, from the perspective of function, hole type and scene. We found that they are most commonly classified from the perspective of installation, which is easy to understand and remember. I summarized our hydraulic cartridge valve types to Berge. After reading my following report about the types of the hydraulic cartridge valves, he told me that this classification for the hydraulic cartridge valve types can basically cover more than 80% of the hydraulic cartridge valves. Here, I'll also share with you the types of hydraulic cartridge valves I gave him. Common types of hydraulic cartridge valves are as follows: The Insert-type hydraulic cartridge valves: completely enters the inside of the valve block and does not expose any part outside the valve block. It is positioned by its own thread or other components such as pipe joint, snap ring, retaining ring etc. For example, hydraulic check valve and two-way hydraulic flow regulating valve have this design. The slide-in hydraulic cartridge valves: it does not have installation threads itself, and the valve spool needs to be used together with the cover plate. The valve spool is integrated in the valve block to switch the oil circuit on and off through pressure and spring force. Different cover plates are used to realize direction control, pressure control and flow control. Screw-in hydraulic cartridge valves, that is, hydraulic threaded cartridge valves, have different brands and different hole types, which are usually unable to be interchanged in installation. At present, there are 3 commonly used pass types: ISO7789, SAE and SUN. After understanding the above 3 types of hydraulic cartridge valves, you can basically understand the types of hydraulic cartridge valves, and you can also extend other types of hydraulic cartridge valves. These types of hydraulic cartridge valves are related to each other. AAK HYDRAULIC VALVE uses the most intuitive installation angle to describes the types of hydraulic cartridge valves. If you have any questions about the hydraulic cartridge valves, please leave a message on AAK website www.aakindustry.com. We are at your service at any time. https://www.aakindustry.com/info-deta , il/hydraulic-valve-manufacturers-aak93

Maarten purchased a batch of hydraulic valve blocks some time ago. In the early test, the system parameters were normal. Strangely, 10 days after the hydraulic valve block was started, the hydraulic oil in the system suddenly deteriorated. The technician immediately suspended the operation of the whole test system. After inspection, it was found that there were small iron filings in the hydraulic oil, and the valve spool of the cartridge valve connected with the hydraulic valve block also showed signs of wear. Maarten mentioned these problems to the hydraulic valve manufacturer, but the hydraulic manufacturer asked the customer to use better hydraulic oil and avoided the problem of his own hydraulic valve block. With delivery date approaching, Maarten is very helpless. Maarten really had no choice but to try to find other suitable hydraulic valve manufacturers on the website to take over the hydraulic valve block order. He consulted no less than 10 manufacturers in a week, but all manufacturers gave the same reply, they could not 100% avoid fine iron filings. This made Maarten start to doubt the ability of the hydraulic valve manufacturers in China. Before, Maarten had a certain understanding about us AAK hydraulic valve through some B2B websites, so with a try mentality, he directly emailed us a trial order for 5 hydraulic valve blocks. After receiving our hydraulic valve blocks, Maarten tested and compared, he found that AAK hydraulic valve block has strong sealing, high precision and gloss finish. What's more, he was glad that there was no iron filings residue. He immediately sent the drawings, quantity, delivery date and other detailed requirements of the hydraulic valve blocks currently being purchased from the other hydraulic valve manufacturer. After confirming all details with us, he cancelled the order with the original hydraulic valve manufacturer. At this moment, Maarten could finally rest assured. Why do more than 10 hydraulic valve manufacturers dare not accept the order of this hydraulic valve block? Because this hydraulic valve block is very special. There are many slender holes in the processing channels intersected by each hydraulic valve block, and the cleaning of iron filings is a cumbersome process. If there is no unique skill, it is difficult to eradicate it 100%. 2 years ago, AAK hydraulic valve also had an order cancelled by customer due to the iron filings of hydraulic valve block not completely eradicated. After that lesson, our technical team spent half a year innovating the production process of hydraulic valve block, and finally AAK hydraulic valve was able to mass produce the hydraulic valve without iron filings 1 year ago. The reason why AAK hydraulic valve block can remove the residual iron filings that can not be achieved by peers is that after the hydraulic valve block is processed, AAK firstly uses high-temperature alkaline water to cook the hydraulic valve block, so that the iron filings of the hydraulic valve block lose demagnetization, and then uses a small pneumatic grinding wheel to clamp the rotary file to go through the hole, so as to completely eliminate possible flash at the corner. Then, the high-pressure washing machine shall carry out high-pressure washing on the dirt on the inner and outer surfaces of the duct. Finally, the industrial endoscope and cold light source shall be used to check the flash and burr at the corner in the duct. If any, point-to-point and high- pressure washing shall be carried out until the iron filings in the hydraulic valve block are completely eradicated. AAK hydraulic valve block is made with ingenuity. Don't worry about buying and using. You can also try a small order.

AAK hydraulic pressure valve has no horn hole. In Ningbo, the hydraulic valve production base, few factories are sure to solve the horn hole. AAK uses automatic programming software to program and upgrade the processing technology of hydraulic valve cavity hole. The geometric tolerance of each hole is within 0.02mm. At the same time, small fillet is used to replace the R angle of our peers to transition, which completely avoids the horn hole. Most hydraulic valve manufacturers use manual programming to design the geometric tolerance of cavity hole, which is prone to human error and can not be corrected. At the same time, due to the limitation of operation methods, the transition angle between small holes in the hydraulic pressure valve generally adopts the R angle for transition, which is easy to artificially leave a small space that is not easy to detect, so the horn hole will probably appear. After the hydraulic pressure valve is used for a period of time, the horn hole is easy to leak. What's more troublesome is that the oil stain outside the hydraulic pressure valve is easy to enter the valve spool and damage the whole hydraulic system. Adair, a hydraulic valve purchaser in Scotland, had many contacts with AAK hydraulic valve before, because he pursues low price, there is no cooperation between us. In July this year, he placed an order for hydraulic pressure valve worth 80,000 US dollars to a hydraulic valve manufacturer in Ningbo. 2 months later, the quality of the hydraulic pressure valve failed to meet the standard every time. Adair realized that even if it took another 2 months, the sample still could not be approved. Adair accidentally saw an article from AAK about "horn hole" on the B2B website, he further sourced until he got to the AAK website: www.aakindustry.com, he realized that it was the hydraulic valve manufacturer he had been contacting. When we received Adair's email, we understood the problems and causes of his hydraulic pressure valve. 3 days later, we received the hydraulic pressure valve samples that he asked the original hydraulic valve manufacturer to send, we found that the processing coaxiality of the cavity hole diameter of the combined holes of these hydraulic pressure valves was between 0.03-0.05mm, and there were tool connecting traces at the transition R angle. After we took the video and sent it to him, he understood why the samples of the original hydraulic valve manufacturer were always not approved. After receiving the video, Adair transferred the order of this hydraulic pressure valve to us AAK hydraulic valve the next day. At the same time, Adair also joked that you found the problem, but not means that you are able to solve the problem. How does you AAK hydraulic valve do and make me believe that you can 100% solve these hidden problems. AAK hydraulic valve is good at finding the pain points of traditional process, and is more willing to take time to improve or innovate the production process of hydraulic valve. Many times, the process has been one step ahead of the peers. For example, this hydraulic pressure valve is programmed by automatic programming software, which replaces the manual programming commonly used by our peers. After the hydraulic pressure valve automatically generates the cavity hole, then next step is processed. The geometric tolerance of each hole must be controlled within 0.02mm. If it does not meet the standard, the next step of processing will not be carried out. At the same time, each transition angle between the small holes of the hydraulic pressure valve uses a small fillet to replace the common R angle of our peers. By optimizing the processing parameters of the cartridge hole, the horn hole is completely avoided. AAK hydraulic pressure valve has no horn hole, feeling at ease to use. You can also try a small order.

Alfredo is from Spain. He has been smooth in purchasing for 3 years, but was stumbled in the hydraulic pressure control cartridge valve. Last October, they developed a walking reducer that needed to purchase hydraulic pressure control cartridge valve. During commissioning, the equipment stopped unstably. Their engineer judged that the buffering function of the hydraulic pressure control cartridge valve was not up to standard. The hydraulic pressure control cartridge valve manufacturer said that this situation was caused by the inertia of the travel motor when it stopped, and had nothing to do with the hydraulic pressure control cartridge valve. Alfredo was helpless in the face of the push- off of the original manufacturer. Alfredo searched the website of AAK hydraulic valve on Google, and noticed several customer cases of AAK about hydraulic pressure control cartridge valves. He emailed us to ask: Can AAK customize the hydraulic pressure control cartridge valve to solve the unstable stop of the traveling reducer? At the same time, he also sent us the hydraulic schematic diagram and video of on-site debugging. AAK engineers analyzed that as long as the control structure of the original hydraulic pressure control cartridge valve was changed and the buffering function of the hydraulic pressure control cartridge valve was strengthened, the travel reducer could stop stably. Alfredo saw hope and asked AAK to make 7 samples of the hydraulic pressure control cartridge valves. After 50 days, AAK sent the samples of hydraulic pressure control cartridge valves. Two days before our CNY holiday, Alfredo informed us by email that the test run of the walking reducer was smooth and their engineers were very satisfied with the buffer function of AAK hydraulic pressure control cartridge valves, the prototype has been sent to customer and let me wait patiently for their annual purchase order. The structure of the hydraulic pressure control cartridge valve is optimized from 3 aspects and AAK realizes the buffering function of the hydraulic pressure control cartridge valve. 1. The inner chamber of the hydraulic pressure control cartridge valve body is equipped with 2 limit steps. There is a buffer outlet between the 2 steps. The plug is installed at the rear end of the valve body. The valve spool is installed in the valve body, and the pressure regulating spring and buffer are sleeved on the valve spool. One end of the pressure regulating spring is connected to the limit bulge of the valve spool, and the other end is connected to the buffer. The limit bulge of the valve spool is matched with the first limit step, and the buffer is matched with the second limit step. 2. There is an inlet at the front of the hydraulic pressure control cartridge valve body, and a return port between the inlet and the first limit step. The buffer cavity is between the plug and the buffer. The valve spool has an internal flow passage connecting the liquid inlet and the buffer cavity, and the internal flow passage has an orifice. 3. For leakage prevention, 6 sealing rings and 2 retaining rings are used. There is a first sealing ring between the plug and the valve body, and a second sealing ring between the buffer and the valve body. There is a third sealing ring between the limit bulge of the valve spool and the valve body. There are the first retaining ring and the fourth sealing ring on the periphery of the front end of the valve body, the second retaining ring and the fifth sealing ring on the periphery of the middle of the valve body, and the sixth sealing ring on the periphery of the rear end of the valve body. The optimized AAK hydraulic pressure control cartridge valve adopts the forward and reverse, as well as the same direction and two-stage opening mode. The two- stage opening pressure is independent and adjustable, reducing the system flow path, and the system has high and low unloading pressure, realizing the buffering function. AAK, a top cartridge valve manufacturer in China, its hydraulic pressure control cartridge valve is buffered, stable and reliable. Welcome to try it! https://www.aakindustry.com/info-detail , /pressure-control-cartridge-valves- aak511

Most people are willing to admit that they are lazy rather than foolish, and most hydraulic manifold manufacturers are willing to admit that they are not proactive rather than foolish. It is dangerous to say that one is smarter than others. Hydraulic manifold manufacturer AAK prefers to say that AAK is harder and more hardworking than other hydraulic manifold manufacturers, so AAK is not very eye-catching among its peers in Ningbo. Sometimes, on the other hand, it's even more interesting. Some hydraulic manifold manufacturers may not say they are lazy or hardworking, but they seem to have made little progress. If you admit that you are not very smart and that you are a bit clumsy, it may actually be a safer way. With the wide range of hydraulic manifold types involved in AAK, for the hydraulic cartridge valves that AAK does not have a ready-made program, AAK needs to purchase them externally. Therefore, two hydraulic cartridge valve manufacturers were selected as cooperation intentions. For better management, only one hydraulic cartridge valve manufacturer can be identified from A and B as a partner of hydraulic manifold manufacturer AAK. Finally, our chief engineer chose hydraulic cartridge valve manufacturer B. I asked him the reason for determining B. His opinion was that both A and B's manufacturing quality were recognized. Hydraulic cartridge valve manufacturer A looked very smart, but hydraulic cartridge valve manufacturer B looked a bit clumsy. I understand what the chief engineer means now. When many people choose partners, they don't choose the smart one, but instead choose the person they think is a bit clumsy. Because most people's idea is to choose a smart partner, I may not be able to manage it, but choosing a clumsy one, I actually have everything in control. I remember 10 years ago, hydraulic cartridge valve manufacturer AAK was upgrading to a hydraulic manifold manufacturer. When Honeywell chose AAK as the supplier, their purchaser said something: from the manufacturing quality of AAK hydraulic cartridge valves, I saw the quality of AAK's hydraulic manifold production. AAK engineers can select valves based on the oil circuit diagram to complete the hydraulic manifold function. They can create three-dimensional hydraulic manifold drawings according to customer requirements, and design valves with the same function according to the customer's required cavity size to fit with hydraulic manifolds. He knows that many hydraulic manifold manufacturers in China can only do replication, but AAK has the potential to move from ideas to samples. More importantly, AAK is pragmatic and looks a bit clumsy. Interestingly, this is a bit clumsy, but it will actually give me a choice. Moreover, it tells my Fortune 500 clients that hydraulic manifold manufacturers are very hardworking, but they don't seem to be so top-notch and smart. It's okay just get to know the Fortune 500 clients. You can play with me and I will work hard to seize the opportunity you give me. The years when I first started working, I was the same. I never told my boss that I was very smart. I often tell my boss that I am actually a bit foolish, but I will work hard and resolutely execute the orders given by my boss. If there is anything wrong with me, the boss will promptly criticize and correct me, guide me to improve, and I have gained more favor from the boss. Hydraulic manifold manufacturer AAK is a bit foolish, but it works hard and the manufacturing quality is definitely good. AAK HYDRAULIC VALVES (702) 2023-10-28 https://www.aakindustry.com/info , -detail/hydraulic-manifold-manufacturers- aak70 , 2

Chapman comes from a hydraulic equipment manufacturing company in Italy. He has been in the company for 3 years and is highly regarded by his boss. However, the hydraulic pilot relief valves purchased at the beginning of the year has been in a big trouble, which makes his boss more and more disappointed with him. They sold a batch of hydraulic power units, and there was squeal or vibration. They judged that it was caused by the abnormality of the hydraulic pilot relief valve. However, when they tested the hydraulic pilot relief valve separately, the parameters met the standard, and no abnormality was found. In a week, Chapman contacted different hydraulic valve manufacturers online and offline, but it was fruitless. The original manufacturer of the hydraulic pilot relief valve could not provide constructive suggestions. The boss is urging the after-sales plan. Chapman has not found the root cause of the equipment howling yet and has a big headache. Chapman tried to source Chinese hydraulic valve manufacturers on Google. He was surprised that AAK's natural ranking in Google actually ranked on the home page. He left a message to ask if AAK could solve the squeal of the hydraulic pilot operated relief valve. I didn't answer yes or no, but only sent him two links about the squeal solution of the hydraulic valves. AAK has solved the squeal of the hydraulic relief valves for 2 customers. 10 minutes later, Chapman sent the drawings of the hydraulic pilot operated relief valve and the product pictures of the original manufacturer. Our engineer asked him to separate the hydraulic relief valve into two halves along the axis of symmetry, with partial drawing pictures. The next day, I told him that it was not difficult to stop whistling, it is better to make samples directly. After 50 days, AAK sent 40 samples of hydraulic pilot operated relief valves for him to replace the ones on the equipment complained by customers. Last week, Chapman sent a PO for 360 hydraulic pilot operated relief valves, and told that it had been 6 months since AAK hydraulic pilot operated relief valves have been used on the equipment. There was no customer complaint about squeal or vibration, and the customer was satisfied. His boss asked him to replace all the original hydraulic pilot operated relief valves and only choose AAK. Different hydraulic relief valves have different causes of squeal, it needs a case by case analysis. Our engineer found that the dynamic performance of this hydraulic relief valve was not very smooth, so he set dynamic damping in its valve spool cavity. This damping and spring cavity constitute a first-order inertial link. The turning frequency is higher than the natural frequency of the second-order oscillating link of the valve spool, which can form an inter stage dynamic pressure feedback, improve the dynamic process, and effectively reduce the vibration of the dynamic process. The greater the vibration, the stronger the damping effect. AAK hydraulic pilot operated cartridge relief valve, no squeal, no vibration, you can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-pilot-operated-relief-valves- aak38 , 3