Valves

Nowadays, people's recognition of the quality of "Made in China" products is much higher than that of 10 years ago. In fact, this recognition is still lagging behind. For example, the Chinese hydraulic valve manufacturers at the head can rank among the top 20% of the world's hydraulic valve industry only from the manufacturing quality of hydraulic valves. This is also an explanation for why Sun hydraulics directly import finished products from China. I believe that in 10 years, the hydraulic valves engraved with "Made in China" will account for more than 70% of the weight. AAK Hydraulic Valves, 13 years ago, changed from a hardware enterprise to hydraulic valve production. We started with the manufacturing process and learned by doing. We paid a lot of tuition fees and accumulated the production technology and experience of hydraulic valves. Then slowly improve the technology according to their own production needs, refit some equipment and create some patents. Until now, the sales volume of hydraulic valves has gradually expanded, and AAK technology has gradually moved forward. At the same time, more resources have been invested in research and development to promote more basic and wider application of hydraulic valves. In a word, there is no strong hydraulic valve manufacturing, others are floating clouds. In industrial manufacturing, there is no major technological innovation country in the world that did not start with a major manufacturing country (at least once). The advantages of China's hydraulic valve manufacturing industry chain have been self reinforcing in recent years, and continue to attract first-class hydraulic valve brands in the supply chain to set up factories in China. AAK has been OEM factory of hydraulic valves for 3 of the world's top 500 companies for 10 years. The quality control process is more strict than the ISO certification system. It sticks to the manufacturing details of hydraulic valves, focuses on process innovation, and insists on technology research and development. Ensure that each hydraulic valve has anti fatigue, high precision and long service life. What I want to say to the domestic hydraulic valve counterparts is that 20% of the hydraulic valve manufacturers already have quality awareness. What should the remaining 80% of the manufacturers do? Many domestic hydraulic valve peers lack concentration and patience, and specialization is to follow. Because in the past, when we set up enterprises, we could still make money by taking one shot at a time. The vast majority of hydraulic valve manufacturers are money worshippers, not technology worshippers. The vast majority are short-term, not long-term. In the past, they could survive and make money. However, after the construction of the national unified market and under the background of the globalization of industrial products, this kind of thinking will be completely over and impossible. In Japan's manufacturing industry, there is a word called "life dedication", a whole life for one thing. This is the Japanese concept. In fact, the Germans are the same. They have focused on one category or variety for decades or even hundreds of years. This is also the reason why they both are top ones in cutting-edge manufacturing. This is also the direction of AAK Hydraulic Valves. A group of people only work on hydraulic valves all their lives. There is another word in Japan called "one product into the soul". In order to make this product, the soul must be cast into it. To make a product, we should be attentive and soul-bound. I think that "life dedication " and "one product into the soul" constitute the core connotation of Japan's invisible champion. AAK is aiming at the invisible champion of Chinese hydraulic valves, and it acts the same. AAK Hydraulic Valve always focuses on 3 directions, the first is focus, the second is innovation, and the third is internationalization. Globalization is a trend of historical development. Although there are some effects against globalization, the historical trend will not change after all and will not be transferred by people's will. AAK puts "focus, innovation and internationalization" into the soul of the anti fatigue, high precision and long service life hydraulic valves. This is our way. The right way is not far away. https://www.aakindustry.com/info-deta , il/hydraulic-valves-aak262

This week, we’d like to introduce a hydraulic counterbalance valve equivalent to SUN CBGA, the counterbalance valves with pilot assist are meant to control an overrunning load. 3 months ago, we received an inquiry from a new customer from the Europe for a hydraulic counterbalance valve equivalent to SUN CBGA. After quoting, we were advised that AAK price is not competitive. Yes, many hydraulic cartridge valve manufacturers in China have this hydraulic counterbalance valve CBGA in stock, so the price competition is very fierce. However, not every manufacturer is able to produce the same quality as SUN, while AAK’s quality has been the supplier of SUN for 5 consecutive years. Our quality has been approved by market. After knowing above, this European customer placed a trial order of 10 pcs with AAK. We are confident that this new European customer will become a long-term partner of AAK very soon.   AAK hydraulic counterbalance valve E-CBGA two advantages: 1. The function and performance is equivalent to that of SUN CBGA 2. Its service life is 2 times that of its domestic peers Technical parameters of AAK E-CBGA hydraulic counterbalance valve: Max. Operating Pressure: 280 bar (4000 psi) Flow: 60 gpm (240 L/min) Internal Leakage: 5 drops/min Cavity: T-17A AAK E-CBGA hydraulic counterbalance valve, benchmarking SUN CBCG, its service life is 2 times that of its domestic peers. You are welcome to give it a try. AAK HYDRAULIC CARTRIDGE VALVES (777) 2024-02-26 https://www.aakindustry.com/info , -detail/counterbalance-valves-aak777

This Sunday today, there was some time in the morning. My son Steven didn't have any training classes this morning. Most of the Chinese children are always taking cultural classes, or on their way to interest classes on weekends. Steven asked me to take him to a snack street near home for breakfast, but he hasn't figured out what to eat yet and will decide there. I usually already have a plan about what to have for the breakfast when getting up, such as having rice noodles or bread today, then go to the breakfast shop, buy it and leave. I won't think hard at the entrance of a few bakeries or a few noodle stalls. I don't think most people would do this. But today, I was walking from beginning to end with my son on this breakfast snack street for over 10 minutes, because I was free today. This snack street is actually my first time here, and I don't know which one is good or bad. Suddenly, I saw a sign "time-honored brand soup with pepper", which attracted me. Steven also wanted to try the soup with pepper he hadn’t eaten before, so we went in. Breakfast is a fast moving consumer product that everyone is familiar with. Unlike hydraulic cartridge valves, which are unfamiliar to most people. Fast moving consumer goods are cheap. It's so cheap that the brain doesn't have to think, and just buy it based on intuition, common sense, and instant reaction. I sat down, stopped, and thought, 'There are dozens of people eating breakfast on this street, why did I choose this one? I was attracted by time-honored brands, which are local characteristics and also with traditions. Sure enough, the boss came to introduce them. Their soup with pepper came from the Qing Dynasty and has a history of 120 years. And their innovative soup with pepper, Jack Ma of Alibaba has come to eat it. This boss really knows how to do business. Although I am not a breakfast maker, we can learn from breakfast about the production and sales of hydraulic cartridge valves. What am I thinking when I buy mineral water, instant noodles and web paper? What is the customer thinking when purchasing hydraulic cartridge valves? To think from the customer's perspective, in marketing, one must understand this matter. Why don't customers buy from the peers, but from me? I believe many people haven't thought about this issue. AAK hydraulic cartridge valve is usually promoted online, focusing on the specific content of the hydraulic cartridge valve. I write hydraulic cartridge valve tweets every day, but our sales team probably didn't specifically think about why customers want to buy AAK hydraulic cartridge valves? From accompanying my son for breakfast, my harvest is that fast moving consumer goods mainly depends on the selling points. I rely on intuition, try and a split second, because the store caught my eye. A book by a marketing guru that captures users' minds and relies on a differentiated selling point, I think that's the logic behind it. For example, there is an advertisement for Swiss chocolate: it only dissolves in the mouth, not in the hands. After breakfast and on the way back, I was thinking, can you use an advertising slogan for AAK hydraulic cartridge valves? It seems possible, but it seems impossible. Because hydraulic cartridge valves are not fast moving consumer goods, but durable industrial products. However, the promotion of AAK hydraulic cartridge valves must have a sense of scale, so that online customers can see the shadow of AAK hydraulic cartridge valves everywhere, the selling points of AAK hydraulic cartridge valves, a series of purchase reasons, and the most important trust. AAK HYDRAULIC CARTRIDGE VALVES (563) 2023-04-16 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valves

Adam, an old customer of AAK Hydraulic Valve, asked me to copy 2 hydraulic cartridge valve samples for exhibition some time ago. After receiving the samples of cartridge valves, I was a little surprised that the surface of the valve body was not heat treated, just the polished low carbon steel raw material. I double checked with him, is it still copied as required by the email, or can AAK improve the appearance of the valve? He just replied: do your best, the samples are for exhibition. I sent samples and refined 3 selling points. 1. The material of cartridge valve body and valve spool is changed to high- strength alloy steel. 2. The surface treatment of hydraulic cartridge valve is galvanized nickel alloy. 3. The durability of hydraulic cartridge valve ensure for more than 2 million times. Why should I do this? In fact, it is due to a small matter I met before. I needed to polish 2 stones. I found a stone polishing studio. They sent the stones back in a week. After I got the polished stones, I felt that they did not polish them attentively. In fact, the requirements for polishing the stones are very simple. As long as you polish it carefully, you can do it well. But they just didn't want to work hard, so they sent stones back after dealing with them. I'm a little surprised. The studio seems to be of high quality. Why can't they do this little thing well? Adam needs hydraulic cartridge valve samples to participate in the exhibition. The manufacturing quality, function stability and performance durability of such products must be considered. After Adam got the hydraulic cartridge valve samples, he told me that he had 3 hydraulic cartridge valve manufacturers copy 10 hydraulic cartridge valve samples. Only AAK made improvements on the basis of the original, and helped him extract 3 selling points, while others just completely copied the original. 2 months later, Adam told me that the 2 models of hydraulic cartridge valves copied by AAK had the most inquiries. No matter my customers and I, or my suppliers and I, we are "working together", but just the office is different. No matter who, no matter how: 1. You can do any work as long as you do your best. Doing your best is the easiest way to work. 2. If you are absent-minded, you may lose a customer you can cooperate with for a long time, and then continue to complain about the difficulty of business.   In fact, most of the work has little technical content. As long as we do our best and work hard, we can do a good job. But most people just don't want to do more and think more, which leads to their failure in work and dissatisfaction of the boss. In fact, they can take their work seriously and carefully, and then get higher pay. But they are not. They are slacking off and dealing with their work casually, while complaining about how hard life is and how unrecognized talented they are. Our corridor part-time cleaning aunt, the property did not require her to work on weekends, because there were not many people on weekends, but occasionally some people worked overtime. I often see her on weekends. I asked her curiously, "Are you coming on weekends?" She naturally replied that I have nothing to do at home, so I come to see if there is any place that needs cleaning. This is the difference between attentiveness and inattentiveness. AAK Hydraulic Valve, treats every old customer with care from a small matter, and will meet new customers with more care. https://www.aakindustry.com/info-deta , il/cartridge-valve-manufacturers-aak482

Yesterday, hydraulic cartridge valve manufacturer AAK defined some people as the bottom of society, although it is quite distressing, this is also a fact. In Ningbo, although there are over 200 of hydraulic cartridge valve manufacturers, most of them are at the bottom of the industry. People are stratified, and hydraulic cartridge valve manufacturers are also stratified. People at the bottom of society are almost always those who do not like to use their brains, and their perception of life is relatively shallow. Easy to move and angry, but usually comes quickly and goes quickly. They are deeply moved when others helped them, and at that moment, they were sincere. But they superficially believe that a "thank you" from themself can be equivalent to someone else's deep affection. The root cause is that they do not understand that the underlying logic of society is "equivalent exchange", and their gratitude becomes particularly cheap. If you provoke them, they do care about your past interactions and the help you gave them, and immediately turn again you mercilessly, because they really can't hold back. Even if there is a cost of having their tongue cut off afterwards, they must speak out what they want to say. Recently, a client of mine found a new valve from a hydraulic cartridge valve manufacturer in Ningbo, for AAK did not have the existing program for this valve, he had to purchase it from that manufacturer. This hydraulic cartridge valve manufacturer seems to have just started foreign trade and has received a foreign trade order. He treated my client very well and was also very grateful. 2 months later, upon receiving the bulk shipment from this hydraulic cartridge valve manufacturer, my client requested a refund and return due to unstable quality. However, the manufacturer seemed to disappear and did not respond to emails or phone calls. My client asked me to help negotiate with the hydraulic cartridge valve manufacturer, so I saw the email communication between the client and this hydraulic cartridge valve manufacturer. This manufacturer went from treating customers as gods to trampling them underfoot, just in a moment of thought. People at the bottom of society are like neighbors in a large courtyard. As long as their own interests are not involved, neighbors will be very enthusiastic and helpful to each other. However, when it comes to their own interests, even if they are brothers, they will fight against you. Hydraulic cartridge valve manufacturers at the bottom of the industry are like people at the bottom of society. As long as you influence their interests, whether you are their customer or their supplier, you become their enemy. I like to interact with bookworms who love to "use their brains", not only because of their sense of propriety, but also because they don't waste time and are controllable. The same goes for partners in business, if your supplier is from the bottom of society and is just a brainchild, such uncontrollable cooperation is like walking on a tightrope. AAK, a Hydraulic cartridge valve manufacturer in China, loves reading and has a brain. Live thoroughly and do professionally. AAK HYDRAULIC CARTRIDGE VALVES (658) 2023-08-27 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valve- manufacturer , s-aak658

Stephen is from a hydraulic equipment manufacturing company in Greece, and his 3-year procurement is very successful. At the beginning of the year, their customer customized the company's large tonnage cranes, with very high requirements for hydraulic cartridge directional control valves. Stephen chose a local hydraulic cartridge valve manufacturer who has cooperated with him for 3 years to make samples. During the prototype debugging, the connecting pipeline of the oil cylinder burst, causing the boom to drop abnormally. Their engineers advised that the key is to optimize the load balance of the hydraulic cartridge directional control valve. The manufacturer said that this hydraulic cartridge directional control valve benchmarks a standard part of HydraForce and cannot be improved. Stephen contacted more than 10 hydraulic cartridge valve manufacturers, but none of them was willing to improve the standard parts of HydraForce. Stephen was very worried. Stephen found AAK while browsing Google. He noticed that AAK was continuously supplying HydraForce and left a message: Can AAK optimize the hydraulic cartridge directional control valve of HydraForce standard parts? I guess that he encountered trouble in purchasing hydraulic cartridge directional control valves. After communication, I learned the story above. According to his hydraulic schematic diagram, production drawings of hydraulic cartridge directional control valve, and equipment work videos, AAK engineer said that the original system was designed as a double cylinder luffing structure. During the luffing operation, the cylinder motion was not synchronous. When the system was suddenly loaded, the double cylinders were biased and the pipeline burst. Only by optimizing the structure of the hydraulic cartridge directional control valve can the load balance of the system be improved. Stephen saw the hope and paid the development cost on the second day. After 35 days, AAK sent 12 samples of hydraulic cartridge directional control valves. 2 weeks later, Stephen informed by email that after replacing with AAK hydraulic cartridge direction control valves, the prototype debugging was smooth, no pipeline burst, and the equipment had been delivered to the customer. After the customer tried, there would be an official order. AAK optimized the structure of the hydraulic cartridge directional control valve, and set small tricks on the first and second oil ports of the valve body. The oil passage between the first oil port and the valve chamber is equipped with a detachable damper, and the inner wall of the valve chamber at one side of the second oil port is provided with a boss extending radially. After this optimization, the oil pressure connected to the first oil port and the second oil port of the valve can act on both ends of the valve spool respectively, and the valve spool can slide between the first working position and the second working position under the action of the pressure oil. When the valve spool is in the first working position, the first oil port of the valve body is connected to the second oil port, and when the valve spool is in the second working position, the oil path between the first oil port and the second oil port of the valve body is not connected. AAK hydraulic cartridge directional control valve, no longer need to worry about safety, you can also try a small order! https://www.aakindustry.com/info-det , ail/hydraulic-cartridge-directional- control-va , lves-aak413

Balram is from a hydraulic equipment manufacturing company in Chile. The purchase of 3 years has been smooth, but the recently purchased hydraulic cartridge pressure control valve has upset him. The hydraulic cylinder supplied by them was complained by a customer, the hydraulic shock caused serious vibration of the pipe, which was easy to crack and leak oil. It is judged by the after-sales that it was caused by the impact load of the hydraulic cartridge pressure control valve used to control the pipeline pressure of the oil cylinder. The impact load of the hydraulic cartridge pressure control valve must be reduced. The hydraulic cartridge pressure control valve manufacturer advised that the impact load cannot be avoided. Balram checked with different hydraulic cartridge valve manufacturers in China to solve the impact load of the hydraulic cartridge pressure control valve. A week later, it was still fruitless. Balram browsed AAK website on Google and clicked the articles or products about hydraulic cartridge pressure control valves for many times. He left us a message: How to reduce the impact load of hydraulic cartridge pressure control valve? My reply: There are many reasons for the problem, which should be analyzed in detail. According to the video of abnormal equipment sent by Balram, as well as the production drawings of hydraulic cartridge pressure control valves, AAK engineers judged that the structure should be optimized and AAK is 90% confident to be successful. Balram saw the hope and asked AAK to make samples. After 35 days, AAK sent 12 samples of hydraulic cartridge pressure control valves. Last week, Balram said that it had been 9 months since AAK hydraulic cartridge pressure control valve was used on the hydraulic cylinder, and the pipeline was free of vibration and cracking. The customer was very satisfied with this after-sales service. His boss has decided to replace all the hydraulic cartridge pressure control valves on this batch of hydraulic cylinders with AAK ones, so AAK can prepare materials in advance. According to the schematic diagram provided by Balram, AAK optimized the original structure of the hydraulic cartridge pressure control valve. It can realize small opening throttle back pressure, and meet large opening oil return to reduce pressure impact. It can effectively reduce the peak value of pulsating pressure impact generated by high-frequency commutation, avoid pipeline vibration impact damage, and reduce the impact load on the connection between the vibration table and the hydraulic cylinder. AAK made below 3 changes: 1. A cavity with a stop is formed between the upper part and the lower part of the valve body, and the upper end of the valve spool in the cavity is against the positioning nut. 2. A sliding block is arranged in the middle of the valve spool, a stop is arranged at the lower part, a pressure regulating spring is arranged below the stop, and the pressure regulating spring is fixed on the spring seat. 3. The spring seat is pressed on the plug, with an adjusting bolt in the middle. One side of the lower part of the valve body is provided with a radial oil inlet hole and an axial control hole connected with it. The other side is provided with a radial oil return hole, a damping hole and an axial oil return hole connected with both holes. The axial control hole is connected with the upper oil hole on the shoulder of the upper valve body. AAK hydraulic cartridge pressure control valve, no impact load, you can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-cartridge-pressure-control- valves- , aak412

made the gate valve famous in and out with perfect designing and manufacturing techniques and quality system assurance. The manufacturing experience and technique innovation have made the products reach BS, DIN and other international standards.   Metal Seated Gate Valve Features: -High reliability of strength and rigidity. -The sealing is copper alloy which is wear-resisting and has long life. -When opening, no other parts in the way. -The installation direction is various iwith the same performance.   Product Range: Standards: BS&DIN Suitable medium: water, sea water. Suitable temperature:≤100℃ Material: Ductile iron, GJS500-7. GJS400-15, GGG40,GGG50

Tilting Check Valve With Lever,Counter Weight And Hydraulic Damper -Tilting disc check valve with hydraulic damper eliminate the closing slams and water hammer for entire closing stroke. -Closing speed is adjustable depends on working conditions. -All components of the valves are designed for high stress occurred during damping effect.   Product range: Double flange tilting check valve with hydraulic damper Size range: DN100-1200mm Face to face dimensions:EN558 series 14 Test Standard-BS EN12266-1 Body-Ductile iron Disc-Ductile iron Body ring-SS304 Retaining ring-SS304 Disc ring-EPDM Shaft-SS420/SS431/SS316 Fusion bonded epoxy coating-Min 300 microns

Check valves (non-return) are installed in pipeline system to allow flow in one direction only. A swing check valve consist of a flap or disc of the same diameter as the pipe bore, which hangs down in the flow path. Check valves produce relatively high resistance to flow in the open position, due to the weight of the disc. Swing Check Valve With Lever And Weight FEATURES: DOUBLE FLANGE METAL SEATED&RESILIENT CHECK VALVE EN558-1 SERIES 48(DIN3202 F6) SIZE:DN50-300 PRESSURE: PN10-16-25-40 FLANGE CONNECTION: EN1092-2

The double eccentric butterfly valve, often referred to as a high-performance butterfly valve, is highly regarded for its minimal maintenance demands. Its primary application extends to the drainage systems of water plants, power plants, steel manufacturing, the chemical industry, water source engineering, environmental facility construction, and various other sectors. Particularly well-suited for water pipelines, this double eccentric butterfly valve serves as both a regulation and interception tool. As a double eccentric butterfly valves supplier, we provide long-lasting double eccentric butterfly valves known for their dependability, having met the stringent ISO standards.   Butterfly valves are valves which control the flow with the 90°angle turning of the disc. DISAI butterfly valves are double eccentric and rubber sealing ring is kept in place by single piece retaining ring. This design ensures 100% sealing and makes it possible to change the sealing ring without special equipment and dismantling of any parts other than retaining ring. WORKING PRINCIPLE The eccentric principle is that the stem shaft is both deviated from the valve body center,also deviated from the seat. The double eccentricity effect allows the butterfly plate to quickly detach from the valve seat when the valve is opened, greatly eliminates unnecessary excessive Disai Double Eccentric Butterfly Valve PRODUCT FEATURES -Variable choice of actuators. -Bi-directional tightness. -Drop tight shut-off at rated pressure. -Suitable for isolation and control service. -Maintenance free design. -Low operating torque requirement. -Easy installation. -Light weight and smaller volume requirement. -WRAS approval for potable water. What is the difference between double eccentric butterfly valve, triple eccentric butterfly valve and zero eccentric butterfly valve? Double eccentric butterfly valve have two offsets and are available in carbon steel, stainless steel, Hastelloy and other ANSI Class 600 rated body materials, with a variety of PTFE seats and fireproof designs with metal backed seats. Double offset butterfly valves are suitable for a wide range of applications, including high pressure and high temperature environments. have three eccentricities and are designed for demanding applications with high pressure, high temperature and corrosive fluids. Zero-eccentric butterfly valves have no offset and are suitable for low pressure, cryogenic and general-purpose applications where tight shutoff is not important.   PRODUCT RANGE -DESIGN: EN593 -SIZE RANGE: DN200-DN4000 -Face to face dimension according to EN558-1, series 13/14 -Flange connection according to EN1092-2 PN10 PN16 PN25 PN40 -Valve top flange according to ISO5211 -Closed clockwise -Internal&External epoxy coating -For medium drinking water, water, and sewage -Bidirectional

The double flanged concentric soft sealing rubber lined butterfly valve D341X integrates some advantages of eccentric flanged butterfly valve and concentric wafer butterfly valve, filling a blank between eccentric flanged butterfly valve and centric wafer butterfly valve. The flow part of the valve body cavity is designed with vulcanized rubber, and the valve seat is combined as a whole with good sealing performance. It can be widely used in water, agricultural, municipal and other fields.   Centric Butterfly Valve PRODUCT RANGE Design: EN593 Size：DN50 up to DN1200(2”-48”) Material: GJS500-7, GJS400-15 Temperature: ≤80° Pressure：PN10, PN16 Face to face dimension according EN558 series 13 flange connection according to EN1092-2 Test standard：EN12266-1 Top flange：ISO5211 Actuator：Worm gearbox, Penumatic actuator, electric actuator. Application: Products are suitable for fresh water, sea water and sewage etc. treatment system   PRODUCT FEATURES Adopt the optimized plate shaft pin free connection, effectively avoid the hidden danger of plate shaft cone pin connection leakage, and facilitate the replacement of parts on site. The valve is lined with rubber, and the rubber is vulcanized directly on the body as the injection to ensure the permanent adhesion. The use of the adhesive layer will enhance the reliability of the Disai butterfly valve. 90° opening and closing, worm gear drive, small operating torque The optimized lining design and molding process can achieve perfect lining and internal sealing of valve body, and ensure the perfect realization of valve plate seal and overall flange gasket seal. Bidirectional sealing, excellent performance, superior parts processing performance Valve plate and seat through the overall spherical seal, valve plate and seat contact more reasonable, ensure valve plate seal, reduce valve torque. The double shaft design of the valve can effectively reduce the pressure loss of the valve and reduce the flow resistance. Various sealing materials are available for users to choose The valve shaft and valve body can be precisely connected with the valve plate by increasing the design structure of the bushing, and the self-lubricating bushing can prolong the service life of the valve. The upper and lower shaft ends of the valve are specially sealed to ensure zero leakage of the outer seal of the shaft end. https://www.disaivalve.com/

Giacomo is the purchasing manager of a German hydraulic equipment company. Last year, the hydraulic lifting platform designed by his company was very creative and needed to purchase a hydraulic pilot operated relief valve. It was originally planned to be promoted on the exhibition at the beginning of the year, but the test run was not smooth. There was vibration and loud noise during the lifting process. The problem was the hydraulic relief valve. Giacomo was confused because the valve came from an old hydraulic relief valve manufacturer who had cooperated for 5 years. According to the manufacturer, this hydraulic relief valve sample was completely made based on the drawing, and the accuracy, flow, pressure and other requirements fully comply with the original design. The engineer realized that there might be a problem in the design, and asked Giacomo to contact several hydraulic relief valve manufacturers, hoping to get some constructive suggestions. It has been a month, but no progress has been made. Giacomo suddenly remembered that during the last communication with Gerrit of Caterpillar, Gerrit mentioned that AAK Hydraulic Valve has great design ability. With Gerrit's introduction, Giacomo told me about their current difficulties, and also sent the original drawing of the hydraulic relief valve and the video of the test run. After repeated comparison and several internal discussions, AAK technical team basically determined the cause of vibration of the hydraulic relief valve and the preliminary solution. I told Giacomo that we are 90% sure, but AAK needs to redesign the hydraulic relief valve, which will take 6-8 weeks. Giacomo paid $2,000 for the development the next day. Six weeks later, AAK sent the newly designed hydraulic relief valve samples. A week later, Giacomo sent a video of the machine testing. The vibration and noise were gone, and the whole machine could rise and fall freely. Their engineers disassembled AAK hydraulic relief valve, only then did they know that AAK design was brilliant and had a sigh of "so it is". AAK adds parts to the resonant cavity of the hydraulic pilot operated relief valve, which reduces the volume of the resonant cavity and increases the stiffness of the oil under negative pressure. According to the principle that the components with high stiffness are not easy to resonate, we have adjusted the internal design of the hydraulic relief valve, added a vibration damping sleeve and a vibration damping pad to the pilot valve, and set various damping holes on the vibration damping sleeve to increase damping to eliminate vibration. The vibration damping pad can cooperate with the resonant cavity and move freely. There is a throttling groove on the front and back of the vibration damping pad, and the oil can also produce damping effect when flowing to change the original flow. Giacomo privately informed that after the successful test run, the whole team was very happy and their engineers admired him more and more. AAK hydraulic pilot operated relief valve, no vibration, no noise, you can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-relief-valve-aak261

Our hydraulic valve customer Pablo from the Netherlands has an order for hydraulic relief valves. Although the order qty is only 800, it requires very high precision of grooves. He asked me for a quotation at the first time, but he thought that the quotation of AAK hydraulic relief valve was 20% higher. I also agreed with him to check with the price other hydraulic relief valve manufacturers. Pablo consulted all the hydraulic valve suppliers on hand, and most of them said that they could not achieve the groove accuracy of the hydraulic relief valve drawing. Only 2 factories could have a try, but the price was at least 60% higher than that of the conventional hydraulic relief valves. Moreover, only after the sample was made, they could know whether the groove accuracy could meet the standard. Pablo was a little confused. After wasting a week, he returned to AAK Hydraulic Valve. Pablo was surprised that most manufacturers could not do the groove precision of hydraulic relief valve, which seemed to be a very conventional process. I told him that the cutting and processing area of this hydraulic relief valve was closed, with high resistance of the cutting tools, fast wear and tear, and difficult chip removal. The groove precision was even more difficult to ensure, that is, the conventional processing technology was not feasible, which was also the reason why so many hydraulic relief valve manufacturers gave up. At the same time, I told him that the two hydraulic relief valve manufacturers who were willing to try were 60% more expensive because they used high-speed milling to avoid tool damage and improve groove accuracy. This technology is not only costly, but also has very strict requirements for the entire processing system. Otherwise, the accuracy cannot be guaranteed, and most manufacturers cannot control this technology. Pablo was surprised by our understanding of the industry. It seems that he can only choose AAK to make the samples. Two weeks later, we successfully sent 6 samples of hydraulic relief valve. Their engineers approved AAK hydraulic relief valve samples at one time after receiving them. I fed back to Pablo that AAK adopted UG CAD module to solve this processing problem. No hydraulic relief valve manufacturer in Ningbo would think of using this technology. This technical point is imported from Germany. The CAD module of UG is used to model the geometric parameters of the groove, and then the CAM module of UG is used to NC program the machining of the groove of the hydraulic relief valve. The tool path and cutting method are set by programming. The NC program thus obtained can carry out the precise machining of the groove and solve the problem of chip removal. The reason why AAK can effectively deal with the high- precision machining of hydraulic relief valve groove is that after generating the tool path of machined parts, the whole process is simulated by using the simulation function of UG software. Our technicians can clearly see the processing path of the processing tool, that is, turn the closed area into a visible area. After the simulation, determine the tool direction through UG software, and then import it into the file of the NC machine tool to generate the code for executing the command. AAK hydraulic relief valve groove processing adopts simulation modeling technology, which not only reduces the cost, but also ensures the accuracy. You are welcome to try the order. https://www.aakindustry.com/info-det , ail/hydraulic-relief-valves-aak260