Valves

Demetrius comes from a hydraulic equipment manufacturing company in Greece and has been purchasing hydraulic cartridge valves from China for 2 years. In the second half of last year, a hydraulic cartridge valve with high requirements for all parameters made him very upset. Their company's newly developed hydraulic unit did not go smoothly in the testing, and the hydraulic cartridge valve purchased by Demetrius had a pressure holding time of only 1-4 weeks. The root cause was either this parameter did not meet the standard or that parameter did not meet the standard. The original hydraulic cartridge valve manufacturer tested 3 times but still did not meet the standard. Time has been wasted for more than half a year, and the engineer complained to the boss. Demetrius was very anxious. Demetrius found AAK and contacted us. After communication, we learned that he had encountered difficulties in purchasing hydraulic cartridge valves. Based on the parameter requirements provided by Demetrius for hydraulic cartridge valves, AAK engineers analyzed and found that this hydraulic cartridge valve has high requirements; Close attention needs to be paid during the durability testing. I told him that not only the production of this hydraulic cartridge valve is very important, but also the testing on the various parameters of the hydraulic cartridge valve is also very important. Most hydraulic cartridge valve manufacturers do not pay attention to the testing process, resulting in unstable performance of hydraulic cartridge valves. After 50 days, 30 hydraulic cartridge valve samples from AAK were sent out. Last week, Demetrius informed us via email that their engineers have approved each parameter of the AAK hydraulic cartridge valve, and their hydraulic unit has been delivered to the customer. It is likely that they will receive a batch order. Each parameter of the AAK hydraulic cartridge valve can meet the standard, it is because that while the manufacturing quality is being rigorously improved, the performance and function of the hydraulic cartridge valve are also being tested without negligence. For this hydraulic cartridge valve, AAK uses a multifunctional hydraulic valve testing equipment specially customized by Chufan Hydraulic. We operate it as follows: first, set the testing parameters requirements for each valve on the computer, and then load the hydraulic cartridge valve into the testing equipment to run for a period of time. After the test is completed, the screen will display the testing results. The pressure range, reversing performance, internal leakage, pressure loss, pressure adjustment range, and pressure and flow stability performance data of each hydraulic cartridge valve will be displayed on the electronic display screen, and the detection results will be automatically displayed in real-time. If there are differences, an alarm will be given to remind. Anything that does not meet the standards will be treated as defective products. Most hydraulic cartridge valve manufacturers in China only rely on manually operated hydraulic test benches for testing, and most of them are manually judged, Sometimes, negligence often leads to individual hydraulic cartridge valve parameters not meeting the standards. AAK hydraulic cartridge valve, focus on manufacturing quality, functional and performance testing, you can also give it a try! AAK HYDRAULIC CARTRIDGE VALVES (655) 2023-08-22 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valves-aak655

Stephen is from Hi-Force hydraulic equipment manufacturing company in the UK. In the second half of last year, he was promoted to the purchasing manager of Kuala Lumpur Branch due to his excellent work. Within a week of taking office, he met with complaints. A batch of their hydraulic cylinders were noisy and vibrated seriously during operation. The after-sales engineer failed to solve the problem within 3 days. The user was not satisfied. Stephen was a little worried. Stephen browsed an article of AAK on Google: "change the design of the hydraulic directional control valve, the vibration disappeared, and AAK eliminated the Canadian factory at zero cost", and left a message: how to solve the noise and vibration of the hydraulic cylinder? After reading this message, I roughly judged that either the hydraulic directional control valve used had problems or the original design had hidden dangers. We asked Stephen to provide the hydraulic system schematic diagram and design drawings, and AAK engineer judges that the working principle of the hydraulic cylinder is reasonable, only by checking on site can we find out the source of the vibration, and then no news from Stephen. 2 weeks later, Stephen emailed that according to the last case that AAK solved the vibration of the hydraulic cylinder, they also added a triangular throttling groove to the hydraulic direction control valve, but after installation, the hydraulic cylinder still vibrated. Their engineers said that AAK solution was a lie. I was speechless and didn't want to explain anything, so I ignored him. 3 days later, Stephen emailed us again, and sent a video of the hydraulic cylinder working and asked our help to check. AAK engineers found that the hydraulic cylinder will emit rhythmic noise and vibration whenever the load drops in the actual work, and preliminarily judged that there is a problem with the hydraulic direction control valve. AAK technical team discussed again according to the drawings, the working principle diagram of the hydraulic cylinder and the working video of the hydraulic cylinder, and confirmed that the problem lies in the hydraulic direction control valve. I told him that AAK could redesign the hydraulic directional control valve and asked him to send us samples of the original hydraulic directional control valve. Stephen may have no choice but promised. 5 days later, we received the sample of the original hydraulic directional control valve, which confirmed the judgment of our engineers that the internal leakage and external leakage of the original hydraulic directional control valve was reversed. 1 week later, AAK sent the newly designed external leakage type hydraulic directional control valve. Stephen informed by email that the noise and vibration problems of the hydraulic cylinder had been solved after using AAK external leakage hydraulic directional control valve. In the past 4 weeks, their engineers, from suspicion, disdain to admiration, wanted to know how AAK engineers found and solved problems, and sent out new hydraulic directional control valves in only 1 week. When the load of the hydraulic cylinder moves downward, the pressure at the oil inlet of the hydraulic directional control valve is pushed higher due to the action of the needle valve. At this time, the control oil inlet is still the original set pressure. Under the action of the oil inlet pressure, the hydraulic directional control valve will be closed. When the oil inlet pressure drops, the hydraulic directional control valve will be opened again. The repetition of this process leads to the vibration and noise of the hydraulic cylinder. That is, the reason for the problem lies in the selection of hydraulic directional control valve. It is only necessary to change the internal leakage hydraulic directional control valve into the external leakage hydraulic directional control valve. Just a while ago, a Canadian customer also ordered the same type of external leakage hydraulic directional control valve, and we have existing samples, so they were sent out soon. Their engineers have to sigh that AAK has too many customer cases, which is true and can really solve the problem. Stephen also privately informed us that his boss was very satisfied with his attitude and spirit to solve the problem this time, and his colleagues in Kuala Lumpur Branch admired him. AAK hydraulic directional control valve, no noise, no vibration, you can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-directional-control-valve- aak252

Pozo is from Argentina, and left a message on AAK hydraulic cartridge valve website the day before yesterday: I saw a customer case that AAK hydraulic counterbalance valve has 1 additional function compared to its peers. We also have similar difficulties. Can AAK customize the hydraulic counterbalance valve according to our parameter requirements to meet our equipment requirements? After communication, it was learned that Pozo's lift experienced shaking and impact when the load was lowered, resulting in unstable system. Pozo contacted several hydraulic cartridge valve manufacturers in China but made no substantial progress. According to the dissected diagram of the hydraulic counterbalance valve sample he emailed, as well as the schematic diagram of the lift hydraulic system, it is very similar to the one customized by AAK for a Peruvian customer a while ago. The overflow area of the hydraulic counterbalance valve port undergoes a sudden change, which cannot timely buffer the pressure peak generated by load impact. I showed him a diagram of how AAK solves the overflow area of the hydraulic counterbalance valve port. Based on this, then to optimize the internal structure and external dimensions of the hydraulic counterbalance valve, it will match his hydraulic system. Pozo requested AAK to make samples of hydraulic counterbalance valve, and today we received his bank slip for the development fee. The optimization plan that we proposed to Pozo is as follows: 1. The hydraulic counterbalance valve sleeve is equipped with a transverse through hole to form the main hole section of the valve sleeve, a reducing hole section of the valve sleeve, and a valve sleeve flow groove connected to the fourth oil port on the outer wall of the valve sleeve. 2. In the main valve body of the AAK hydraulic counterbalance valve, there is a fixed first valve seat. The main valve spool slides and fits with the main valve body, dividing the inner chamber of the main valve body into the first and second chambers connected to the oil inlet, as well as the control chamber. The second chamber is equipped with a second valve seat and elastic components. 3. There are multiple U-shaped grooves along the axial direction on the circumferential surface of the main valve spool. The valve spool is located in the main hole section of the valve sleeve and can move left and right. On the left side of the second valve spool reducing section, there is a protrusion for opening and closing the valve seat transition hole section, and on the right side of the protrusion, there is a valve spool throttle hole. When the pressure oil enters, the valve spool begins to move left and gradually exposes various radial throttle holes. The flow area can be relaxed and increased, and the hydraulic counterbalance valve can timely buffer the pressure peak generated by load impact. After the plan is confirmed by Pozo, our sampling master can start working, and it is estimated to be another month of hard work. Come on, masters! I am also very happy today. AAK can provide help to others again, and at the same time, AAK has another new customer. With AAK hydraulic counterbalance valve, the equipment has no shaking or impact, and you can also give it a try! AAK HYDRAULIC CARTRIDGE VALVES (560) 2023-04-13 https://www.aakindustry.com/info , -detail/counterbalance-valves-aak560

Caspar is from Samhydraulik S.p.A. in Italy, mainly responsible for the purchasing of hydraulic valves. In March this year, Caspar requested AAK to sample 10 hydraulic pressure control valves by soonest. This sample order was quoted half a year ago. There must be a reason for him to be so anxious to place an order now. After several rounds of communication, it was learned that Caspar was cheated by the original hydraulic pressure control valve manufacturer. In the second half of last year, their company developed a new hydraulic power unit, which requires a high-pressure hydraulic pressure control valve, and the durability should reach more than 2 million times. Caspar contacted more than 10 hydraulic pressure control valve manufacturers. Most of them are able to produce the hydraulic pressure control valves with high pressure resistance and durability of more than 2 million times. Only AAK hydraulic valve and other 2 manufacturers have quoted prices. After receiving our quotation, Caspar said that the price of AAK hydraulic pressure control valve was about 20% higher than that of other manufacturers, and then there was no further news. Until today, 6 months later, he was anxious to ask AAK to make samples immediately. 6 months ago, Caspar selected another hydraulic pressure control valve manufacturer to make samples. 5 weeks later, their new hydraulic power unit was successfully tested and the equipment was expected to be popular. Caspar asked the original hydraulic pressure control valve manufacturer to hurry up to prepare materials, but the manufacturer wanted to raise the price by 40%. Because the valve spool material was hard, the cutting tools needed to be changed constantly, the production cost was increased, and the defective rate was also high. If without a price increase, the manufacturer refuses to produce the order. Caspar felt very helpless. The boss was very dissatisfied with such a hydraulic pressure control valve manufacturer who raised the price at the last moment, and asked Caspar to find a new manufacturer. Caspar suggested that AAK can make samples. If the original price of AAK hydraulic pressure control valve can be maintained, 20% of the cost will be saved. 1 month later, AAK sent 10 samples of hydraulic valve pressure control valves. 1 week later, Caspar informed that the test was passed and 1,000 samples need to be produced immediately. Caspar also wants to know why AAK hydraulic valve pressure control valve can maintain its original price in the same 6 months, while the other manufacturer needs to increase it by 40%. Most manufacturers of hydraulic pressure control valves do not pay attention to some details in the processing at the drawing stage, and only know after suffering in the sampling process. This hydraulic pressure control valve has high requirements, especially the reaming of valve spool hole is the key to the finished product. AAK does not need to constantly change the tools, because the ingenious use of cutting fluid in the cutting process can reduce the friction between the tool and the workpiece surface, reduce the chip, and reduce the cutting force and cutting temperature. This is a unique skill. AAK engineers with more than 20 years of production experience strictly control the process, and select the best Castrol cutting fluid in the world. With its high permeability and high adsorption efficiency, combined with the control of our engineers, not only the cost is saved, but also the tool wear is effectively reduced, and the surface quality of the workpiece is also high. AAK hydraulic pressure control valve is high-pressure resistant and durable for more than 2 million times. You can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-pressure-control-valve-aak251

Dolly is from a hydraulic equipment company in Peru. His boss thinks highly of him and plans to promote him to be purchasing manager, but a hydraulic cartridge relief valve stumped him. In the first half of last year, they sold a batch of hydraulic power units. 3 months later, the customer complained that the adjusting screw of the hydraulic cartridge relief valve had serious slippage, and the failure to adjust led to the strike of the equipment. The hydraulic cartridge relief valve manufacturer advised that this hydraulic cartridge relief valve benchmarks HydraForce, and the material is the same as HydraForce. The adjusting screw slipped after 3 months, which was caused by the high frequency of use. It can only be replaced with new ones. But it still slipped after 3 months. The customer was not satisfied, and the boss was also angry. He asked Dolly to replace the manufacturer of the hydraulic cartridge relief valve with a new one and ensure that it was safe for 1 year. Dolly became to be under great pressure. Dolly noticed AAK hydraulic valve website on Google and left a message: What is the root cause for the regulating screw of the hydraulic cartridge relief valve to slip in 3 months? As soon as I saw this message, I guessed that he had encountered a customer complaint. After communication, I learned that the original manufacturer had replaced the valves twice, the sliding problem was still not solved. This is the first time that I have met such a model, but AAK engineer said confidently that it would not be difficult to solve the problem and guarantee it for 1 year. After 30 days, AAK sent 30 hydraulic cartridge relief valves. Last week, Dolly sent an order for 960 hydraulic cartridge relief valves, specifically referring to AAK's hydraulic cartridge relief valve adjusting screw. More than 1 year later, there was no slippage, and the customer was satisfied. AAK hydraulic cartridge relief valve has been used at high frequency for 1 year without damage, mainly due to the following 3 aspects: 1. Special material selection: GCr15 high carbon chromium bearing steel is selected as the regulating screw of the hydraulic cartridge relief valve. After special heat treatment, its hardness and wear resistance are increased by 30%. Most hydraulic cartridge valve manufacturers do not pay attention to the regulating screw and select carbon steel. 2. Special heat treatment: the regulating screw is first heated to 810 ℃, isothermal annealed to 720 ℃, then air cooled, then oil quenched at 860 ℃, then carbonitriding at 830 ℃ for 3 hours, oil quenched, cryogenic treated at - 60 ℃ to - 70 ℃, finally tempered at 150 ℃ to 60 ℃, then air cooled, and finally the hardness can reach HRC67. General manufacturers cannot master the details of this heat treatment. Targeted geothermal treatment: the regulating screw is first heated to 810 ℃, isothermal annealed to 720 ℃, then air cooled, then oil quenched at 860 ℃, then carbonitriding at 830 ℃ for 3 hours, oil quenched, cryogenic treated at - 60 ℃ to - 70 ℃, finally tempered at 150 ℃ to 60 ℃, then air cooled, and finally the hardness can reach HRC67. General factories cannot master the details of this heat treatment. 3. Special testing: each adjusting screw is tested with a Rockwell hardness tester, and the hardness reaches the standard for 100%. Today, Dolly told me privately that his promotion to be a purchasing manager has been hold for more than a month. The boss officially promoted him today, and he became more and more energetic. AAK hydraulic cartridge relief valve, the details ignored by peers, we pay close attention strictly, you can try a small order! https://www.aakindustry.com/info-det , ail/hydraulic-cartridge-relief-valves- aak410

In last video, we introduced hydraulic cartridge valve manufacturer AAK, using a Hardinge CNC machine tool from the United States to produce a hydraulic pressure control valve cage within 2μm accuracy. Today, we will introduce a hydraulic directional control valve cage produced by a PSMT Turning and milling composite machining center, which is just next to the Hardinge CNC machine tool. The valve cage of the hydraulic directional control valve being processed is also controlled to an accuracy of within 2μm. Through the video, we can see that this PSMT turning and milling composite machining center is currently processing the hydraulic directional control valve cage. This equipment is equipped with 12 cutting tools, with B-axis and C-axis linkage. Turning and milling can be completed in one go, reducing the number of clamping times. One clamping, completing all the machining processes of the hydraulic directional control valve cage in one go, from drilling, boring, edge milling, to threading, its production efficiency is 40% higher than most machining centers. This process setting not only improves production efficiency, but also avoids human error. The device also has an online detection function. During the machining process of the hydraulic directional control valve cage, key data can be timely detected in place, ensuring that the accuracy of the hydraulic directional control valve cage is controlled within 2μm. AAK hydraulic directional control valve, production efficiency 40% higher than other hydraulic cartridge valve manufacturers in China, and accuracy within 2μm. AAK HYDRAULIC CARTRIDGE VALVES (774) 2024-02-05 https://www.aakindustry.com/info , -detail/pressure-control-valves-aak774

Recently, we launched a hydraulic cartridge proportional valve equivalent to HydraForce standard part SP12-20. It is a solenoid-operated, 2-way, normally closed,poppet-type, proportional, screw-in hydraulic cartridge valve, designed for low leakage blocking and load-holding applications. Last January in 2022, a hydraulic cartridge valve customer in Brazil found AAK when looking for a hydraulic cartridge valve manufacturer in China on google. He sent us a inquiry list for about 20 standard parts of HydraForce, one of them is SP12-20 but we did not have existing program for this valve at that time. The customer placed trial orders for other valves that AAK has existing stock, and continue to source for SP12-20 elsewhere. 6 months later, he informed us that the trial orders AAK delivered approved the testing, they have a very good performance, completely benchmarking the quality of HydraForce original ones. But he still had not found a reliable manufacturer for SP12-20 hydraulic cartridge proportional valve. He requested AAK to develop it. If the development is successful, he will place an annual order of 1,000 pcs. 60 days later, AAK delivered the 20 pcs of trial order. Last week, we received the annual order for 1,000 pcs of SP12-20 hydraulic cartridge proportional valve from him. Their company is very happy that the development is very successful, the quality is very good but the price is 30% lower than their previous hydraulic cartridge valve supplier in the USA. AAK hydraulic cartridge proportional valve 2 advantages: 1. Internal leakage: 5 drops/min, benchmarking HydraForce quality 2. Its service life is 2 times that of its domestic peers Technical parameters of AAK E-SP12-20 Hydraulic Cartridge Proportional Valve: Max. Operating Pressure: 250 bar (3625 psi) Flow: See PRESSURE DROP VS. FLOW graph Internal Leakage: 5 drops/min Max. at 85% of nominal setting Cavity: 12-2  The newly launched AAK E-SP12-20 hydraulic cartridge proportional valve, benchmarking HydraForce SP12-20, has been approved by customer in Brazil after 1 year of testing. You are welcome to try it out. AAK HYDRAULIC VALVES (654) 2023-08-21 https://www.aakindustry.com/info , -detail/proportional-valves-aak654

In 2023, a disturbing journey has begun. Sometimes it is because the road ahead is unpredictable, sometimes it is because it is difficult to leave the starting place.   A few days ago, I needed to find strength and watched the trilogy of The Lord of the Rings again. After 20 years, I suddenly found that I had never really understood it before.   My favorite character is Gandalf. No matter how hopeless the situation is, as long as he appears, you will be relieved and ignite hope. However, Gandalf did not come in an all-powerful role. Unlike Frodo, Gandalf had no natural resistance to the Ring, but he understood and controlled his desire. Gandalf has all kinds of fairy friends, and he enjoys it when he is with the little people. Sometimes, regardless of his face, he tried to win the support of the powerful. After being rejected, he turned and left, never taking chances. He always tries to find the best game in the situation, even if the winning rate of that game is only 1%.   Perhaps Gandalf's strength comes from his belief in mission. He never entangled himself in the “so is the reality ", but committed himself to the "reality should be" without hesitation. How many people dare to go upstream in despair? How can the responsibility be easier than the lazy afternoon? People always make choices or decisions that are difficult to define. Facing the uncertain future, allocating limited resources requires wisdom, motivation and courage, and more importantly, motivation.   1. The first motivation is thinking, which is the brain; 2. The second power is the heart, which is the part of love; 3. The third driving force is the will, which is our hands and action. Gandalf in The Lord of the Rings uses his brain to make decisions. He tries to use all kinds of resources to think and act around the ultimate goal. Frodo's greatest talent is that he can resist the temptation of the Ring more than anyone else. Sam, by acting, felt that since he had made the right choice, he should stick to it. When Frodo doubted his mission at that time, he asked Sam: "What faith do we hold?" Sam replied: "There must be some beauty in this world that is worth fighting for."   Human excellence, like vines, grows like that. When nurtured, it thrives and reaches the blue sky. However, if you really believe in the tranquility of plants and the nourishment of fate, why would you go on a journey that is not consistent with probability? In this dark and unclear world, I need meaning, probability and temperature, as well as luck that I cherish.   Most people, first make a choice, then deduce the correct reason, and then give a meaningful explanation. How can I wait and see at the table of fate, whose life is not the only bet? Sam, Merry and Pippin in "The Lord of the Rings" do not take the initiative to choose. They are like drinking too much wine, throwing dice at random, and then hitting the road at 6.   Maybe each of us is a mouse of fate, and life itself is a single dice game. In such an external environment, maybe I have nowhere to escape. But I can still think like Sam: now that I have won the game, let me play it. What we need to do is not to weigh the advantages and disadvantages of A or B, but to never give up the chance to throw dice. In this life, it's time to play a game.   On the vast and boundless plain, Gandalf was alone, white robe, white horse, facing the spirit of death, he went upstream and raised his wooden staff. Gandalf knew that only human beings were their own saviors, and the only thing he could do was to let himself be present.   There are flowers and fruits everywhere, and life is full of beer, pipe and endless revelry. The Brandy River, the hole at the bottom of the bag, Gandalf's fireworks, the colored lights hanging on the tree in the party... The carefree people forget the time and wait for the arrival of a person in the dance. He drove the carriage full of fireworks and was about to light the whole starry sky. 2022 is passing by, which is really hard to say. Uncertainty is everywhere. The more uncertain we are, the more we know how to cherish the warmth and certainty of standing with "our own people". Winter will surely pass and spring will come. When the spring comes, let's cook wine and tea together and talk about the future with smile!   Everyone is waiting for a warm force. Everyone is waiting for a pair of hands. But perhaps more importantly, we should stretch out our hands to embrace the world, and every one of us. Don't worry, they are always behind you. Now, it's your turn to pass this warmth to every one of us. AAK hydraulic valve, be Gandalf in the cartridge valve manufacturers, delivers action, love, and warmth. https://www.aakindustry.com/info-de , tail/cartridge-valve-manufacturers-aak479

Half a year ago, David, an American customer, sent an inquiry to AAK about 500 pilot operated hydraulic relief valves. This hydraulic relief valve is difficult to process the inner hole. Our cost accounting department gave a reasonable price. 3 days later, David informed AAK that the price of the hydraulic relief valve was 16% higher than that of other manufacturers and he could only place the order with other hydraulic relief valve manufacturer. As far as I know, there are not many manufacturers who can make this hydraulic relief valve. The price provided by AAK this time should be very cost- effective. As David is our old customer, we never quote prices indiscriminately. I always believe that it is also a sign of dishonesty to quote prices indiscriminately. Last month, David asked again whether the hydraulic relief valve quoted last year could maintain its original price. I asked him curiously, hasn't this hydraulic relief valve placed an order yet? David truthfully told us that last time, the pilot operated hydraulic relief valves purchased in another manufacturer were reported by the users that the stability was poor and the valve was often stuck. They decided to get replacements. David contacted the original manufacturer of the hydraulic relief valves, but the manufacturer was unwilling to offer replacements. Because there were too many complaints, David did not dare to ask the original manufacturer to re produce, so he emailed AAK. David was very cautious this time. He specially sent us 5 samples of hydraulic relief valves from the original manufacturer. After receiving and checking, we found that the inner hole of the hydraulic relief valve has a taper, the processing size is not accurate, and the surface roughness Ra is as high as 1.6μm. The root cause of these problems is that the processing tool rotates improperly, which also shows that the original manufacturer is not good at processing this special inner hole. No wonder there are so many complaints. It is wise for David to change the factory. David was satisfied with our diagnosis of this hydraulic relief valve and asked us to make samples as soon as possible. 1 week later, AAK sent the samples of hydraulic relief valve, and David approved our samples at one time. They specially compared AAK hydraulic relief valves with that of the original manufacturer. Their engineers admired the inner hole processing of AAK, which not only has no taper, but also has more than twice the accuracy of the original manufacturer. For the special inner hole of this pilot hydraulic relief valve, AAK adopts CBN cubic boron nitride cutter from Sumitomo company of Japan to replace the conventional ceramic cutter. Most hydraulic relief valve manufacturers dare not use this cutter, which is not only costly, but also exquisite in operation. After the program is set, the tool completely avoids the taper of the inner hole. At the same time, for the machining of inner holes, we also customized the CBN boring cutter of integral cemented carbide steel, which can ensure the roughness value Ra below 0.8μm. Our technicians deliberately adjusted the cutting parameters to: n=400r/min, f=0.08mm/r, which improved the production efficiency and dimensional stability. AAK has never been stingy with the cost to ensure the processing quality. For the inner hole processing with high quality, AAK only uses the latest and most efficient cutting tools in the industry. AAK hydraulic relief valves most welcome customers with high quality. You are welcome to give it a try and be repaid with AAK unique skills. https://www.aakindustry.com/info-de , tail/hydraulic-relief-valves-aak249

Els is from South Africa, and operates hydraulic machinery business very well in the local market. Recently, she wanted to reduce the energy consumption of a high-pressure hydraulic power unit. The hydraulic pressure control valve in the original system, coupled with multiple changes in fluid direction, results in a small fluid path, resulting in significant energy loss and high energy consumption in the system. The original hydraulic pressure control valve manufacturer advised that the 350 bar high pressure is the root cause of high energy consumption and the valve is the standard part of HydraForce hydraulic pressure control valve. The manufacturer is not willing to change the program. Els was very helpless. Els found AAK hydraulic valves via Google search. She left a message on AAK website: Are you willing to improve the standard part of HydraForce hydraulic pressure control valve to meet the energy consumption needs of our equipment? Upon seeing this message, it is probably clear that other hydraulic cartridge valve manufacturers in China are unwilling or unable to optimize the standard part of HydraForce hydraulic pressure control valves. According to the hydraulic system and working conditions of the equipment she provided, the standard part of the HydraForce hydraulic pressure control valve is indeed not suitable for their equipment. If the original 90 ° guide flow is optimized to 180 ° direct flow, and the optimization is successful, the energy consumption can be reduced by at least 15%. Els paid a development fee of $2,000.00. After 45 days, AAK sent out 10 hydraulic pressure control valve samples. Yesterday, Els emailed us a PO for 500 hydraulic pressure control valves. The functions of AAK hydraulic pressure control valves meet their equipment requirements, and energy consumption has been reduced by 20%. There will be no problem that the equipment will sell well. AAK hydraulic pressure control valve is connected to the control of internal and external flow diversion, and together with the control of internal and external discharge flow, the original 90 ° guide flow is optimized to 180 ° direct flow. 1. The valve spool of AAK hydraulic pressure control valve is a tubular lifting type with a sliding control sleeve, exposing the radial hole in the valve spool and entering the open position, sealing the radial hole to enter the closed position. 2. The tubular lifting valve spool is connected to the threaded end, and the outer diameter of the valve spool extends to the radial orientation hole of the inner diameter. The hole faces forward from the inner side to the outer side at a 180 degree angle, making fluid flow smoother. 3. The control sleeve is connected to the spring wrapped around the tubular lifting valve spool, and there is an oil groove for aligning the control sleeve in the corresponding hole in the valve body. The control sleeve can slide along the length of the tubular lifting valve spool between the seat and the retaining ring. AAK hydraulic pressure control valve, reduces energy consumption, and is also durable. You can give it a try! AAK HYDRAULIC VALVES (559) 2023-04-12 https://www.aakindustry.com/info , -detail/hydraulic-pressure-control-valves- aak5 , 59

This week, we’d like to introduce a hydraulic directional cartridge valve equivalent to HydraForce EP20-S35. It is a screw-in, cartridge style, pilot to close hydraulic directional element. Last month, we received an inquiry from a new customer from the United States for a hydraulic directional element equivalent to HydraForce EP20- S35. After quoting, we were advised that AAK price is not competitive, and we have almost forgotten about this client. Unexpectedly, today, the customer got back to us again and placed a trial order for 10 pcs. After communication, we learned that the customer checked with many other hydraulic cartridge valve manufacturers in China, they either have no equivalent model, or the price is even higher than AAK. At the same time, his friend in the same industry also recommended AAK to him. All of these made him believe that AAK is the right choice. We are confident that this new American customer will become a long-term partner of AAK very soon.   AAK hydraulic directional element E-EP20-S35 two advantages: 1. The function and performance is equivalent to that of HydraForce EP20-S35 2. Its service life is 2 times that of its domestic peers Technical parameters of AAK E-EP20-S35 hydraulic directional element: Max. Operating Pressure: 350 bar (5000 psi) Flow: 380 L Internal Leakage: 197 ml/min at 350 bar (5000 psi) Cavity: VC20-S3 AAK E-EP20-S35 hydraulic directional element, benchmarking HydraForce EP20- S35, its service life is 2 times that of its domestic peers. You are welcome to give it a try. AAK HYDRAULIC CARTRIDGE VALVES (773) 2024-02-05 https://www.aakindustry.com/info , -detail/directional-cartridge-valves-aak773

On Monday morning, I received an email from Whitney to order 2,000 hydraulic relief valves at one time. I am glad that Whitney's first order for the hydraulic relief valves to AAK was a big one. Whitney was introduced to AAK by Friedlich of Polar company, our old customer. The hydraulic relief valve she inquired about was similar to the hydraulic relief valve purchased by Polar company last time. Both of them were non-standard hydraulic relief valves. In October last year, Whitney's newly designed hydraulic equipment needed a hydraulic relief valve. According to the requirements of equipment working conditions, the durability of the hydraulic relief valve should reach more than 2 million times. Because the equipment time was very tight, the boss asked Whitney to get the samples of the hydraulic relief valve in place within 6 weeks. Whitney knows that for non-standard hydraulic relief valves, the quantity of trial order is small, the time is tight, and the requirements are high. Most manufacturers are not willing to do it, and they can't do it well. Sure enough, Whitney sent emails to more than 20 manufacturers of hydraulic relief valves back and forth. They either replied that there was no time or no reply at all. This wasted more than a week but even the manufacturer was not determined. Whitney was very worried. Friedlich in Polar company is Whitney's college classmate. After learning that Whitney had difficulties in purchasing hydraulic relief valves, Friedlich asked her to contact AAK, because AAK supplied them with 3 batches of hydraulic relief valves with durability of more than 2 million times in 2021. I received an e-mail from Whitney requesting that samples of the hydraulic relief valves be sent within 4 weeks for them to debug the equipment. 2 weeks later, I sent her the parcel tracking number. She was surprised that the non-standard hydraulic relief valve was sampled in only 2 weeks. I replied directly that most manufacturers could not get non-standard hydraulic relief valve samples with high requirements within 4 weeks. The reason why AAK can send it out in 2 weeks is that your hydraulic relief valve is similar to the one customized by Polar last time. We only need to modify a few dimension data in the program. A week later, Whitney informed that the new hydraulic equipment was successfully commissioned with AAK hydraulic relief valves. At present, the durability of the hydraulic relief valves is being tested. I am confident to say that there is no need for your engineers to test the durability. I guarantee that more than 2 million times. Polar has purchased 3 batches of hydraulic relief valves from AAK within 1 year, that is to say that it has long been a fact that the hydraulic relief valves with durability of more than 2million times. She also wanted to know why AAK hydraulic relief valve was so durable. I told her that it took more than 2 months and 3 times for AAK to make samples for Friedlich before and finally selected 3Cr3Mo3W2V hot work die steel. This steel can withstand huge mechanical stress in work. It not only has high hardness, strength, wear resistance and toughness, but also has good high temperature strength, thermal fatigue stability, thermal conductivity and corrosion resistance. At the same time, its high hardenability ensures that the whole section has consistent mechanical properties, so as to ensure that the hydraulic relief valve will not be impacted and eroded during the working process of the system, and achieve durable performance. AAK hydraulic relief valve, it is very common to be introduced to new customers by old customers. You can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-relief-valves-aak248

Someone left a message on AAK hydraulic valve website: I saw that some hydraulic valve peers were imitating AAK articles and some hydraulic valve manufacturers were imitating AAK new products. He also attached a link to me. AAK colleagues asked me how to deal with these hydraulic valve peers? I think so, I do my hydraulic valves, I write my articles. AAK hydraulic valve has been introduced to the public online, and its peers want to follow the flow. Perhaps several inquiries and even several orders for AAK hydraulic valves were taken away by them. But I know one thing very well. They are all fake AAK hydraulic valves. Sooner or later, their hydraulic valves will have problems. This part of the orders robbed by peers may return to AAK hydraulic valve. On the contrary, these peers are still creating public praise for AAK hydraulic valve, because AAK hydraulic valve is authentic and its quality is benchmarked to international first-class brands. Those peers who counterfeit AAK hydraulic valve are making negative teaching materials for AAK hydraulic valve. The peers imitated the article of AAK hydraulic valve and let them to copy it. If someone can copy my 100 articles, I should make friends with him. Why? He adores me. Why not make friends. Many times, for the same thing, our mentality and cognition are different. For example, when you see half a bottle of water, there are two kinds of mentality. A said: Oh, there is only half a bottle of water. B said: Wow, there is still half a bottle of water. Hydraulic valve peers copy my articles, I prefer to write every day, I am such an optimistic attitude. All the people who imitate me and copy me are creating public praise and negative teaching materials for me. I am grateful to them. At the same time, the business of AAK hydraulic valve will be better and better. Peers are imitating AAK hydraulic valves, but the sales volume of AAK has not come down, which means that the imitation of peers has no impact on AAK hydraulic valves. Why do I care about the imitation of peers and take time to pay attention to this? It's absolutely unnecessary. I don't suggest that everything should be absolutely right and the secondary disasters also need to be considered. For example, there is a fly outside the window of the office. Dozens of us work here. In order not to let this fly fly in, we don't open the window all year round. It's certainly wrong not to open windows all year round. But now many people have this mentality and have this understanding. They always look at the world with a negative and pessimistic attitude. The pessimist is always right. What he says is right, but the optimists in this world often make money. My peers copied my articles to imitate AAK hydraulic valve, and even the product names. This is similar to a fly outside the window. In order to contain a rotten man, delaying or ruining the great hydraulic valve business, which puts the cart before the horse. AAK hydraulic valve always adheres to the right path, because the right path is not afraid of being far. https://www.aakindustry.com/info-detai , l/hydraulic-valves-aak247

I have been interested in hand strings since last year, turning them from wooden beads into a personal item, which is a particularly fulfilling experience. Especially with time, the plain and unremarkable bracelets formed a patina, shining brightly, as if with spirituality, and the interaction between people and things formed a response. People need to interact more with each other, and the main part of hydraulic cartridge valve manufacturer AAK is also people. Hydraulic cartridge valve manufacturer AAK in China needs to constantly communicate with new and old hydraulic cartridge valve customers all over the world. Form a mutually dependent, supportive, and harmonious cooperative relationship through communication. The 3 tips of communication of Hydraulic Cartridge valve manufacturer AAK: smile, listen and praise. Smiling is the vanguard, just because he brings a beautiful smiling face, it makes the other person feel good the first time, and a smile will make you gain friends. Because of smiling and praising, people feel the sincerity of hydraulic cartridge valve manufacturer AAK; Smiling and refuting, it makes people feel the goodwill of hydraulic cartridge valve manufacturer AAK; Smiling and refusing, made people understand the situation of hydraulic cartridge valve manufacturer AAK. Listening to the speaker fulfilled his desire to express himself. For a person with a sense of distress, it allows them to vent their accumulated grievances, which in turn tends to make them confidants. Hydraulic cartridge valve manufacturer AAK has added another friend. Praise is priceless, and words of praise can be happily accepted by the other party. By this point of communication, you have already done everything you can, and the rest depends on the other party's response. Just like I did with my hand skewers, once it's finished, put it there, let it rest for a while, hand it over to time, and let it form a perfect patina through the fermentation of time. Finally, when others help us, hydraulic cartridge valve manufacturer AAK needs to say thank you. But when saying 'thank you', adding the other person's address or name after 'thank you' will make the other person feel more sincere and friendly than just saying 'thank you'. Because 'thank you' refers generally, while 'thank you + name' refers specifically. Adding the other party's name after "thank you" would be more appropriate if you could explain the reason for your gratitude and your true feelings. For ordinary people, "technique" is more important than "Tao", ability is more important than cognition, and doing what is at hand is more important than paying attention to the world situation. For hydraulic cartridge valve manufacturer AAK, customer trust is more important than inquiry. The 3 tips of communication is the first step to gaining customer favor. Hydraulic cartridge valve manufacturer AAK in China, focuses on manufacturing quality and trust. AAK HYDRAULIC CARTRIDGE VALVES (653) 2023-08-20 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valve- manufacturer , s-aak653