Hydraulic Check Valve Types Suppliers and Manufacturers

When I got up to go to the bathroom at 1 a.m. last Monday, my wechat phone rang. It was from Carl, the purchasing manager of Denison hydraulic pump company in the United States. I was very surprised by this phone call. Generally, we communicate with Carl in the form of e-mail and have never used wechat phone. Carl firstly said sorry to disturb my rest, and asked if I could arrange a video conference at 8:00 tomorrow morning. He needs to discuss a troublesome problem with our technical team. I'm concerned that the communication on the phone will not be clear, and asked him to send me a written email first, and then I'll reply to him. Half an hour later, a detailed email with a schematic diagram of the hydraulic system came in. Last week, the hydraulic pump supplied by them encountered problems with his customer. The customer's hydraulic system has been shelved for half a year, and now it needs to be driven. After the operator starts the hydraulic pump, there is no pressure in the hydraulic system. The field engineer judged that there was no flow output of the hydraulic pump, but after inspection, it was found that the rotation direction of the motor was consistent with that of the hydraulic pump, and the oil level, oil temperature and viscosity of the hydraulic pump met the working conditions. The suction system of the hydraulic pump was replaced, including the oil suction pipe and filter. After startup, there was still no flow output. The transmission parts inside the hydraulic pump are intact without falling off, fracture and blade jamming. A week has passed and no reason has been found. Because the hydraulic pump is still in the warranty period, if it cannot be solved in another week, it can only be returned for claim. Carl asked the original supplier of each part for the hydraulic pump and got nothing. After reading the email, I asked him if the hydraulic pump used a hydraulic check valve? Carl said that the hydraulic check valve was provided by HAWE company in the United States, but the after-sales period of the hydraulic check valve has expired. Because AAK supplied hydraulic check valves to their company last year, and the quality was very satisfying, although the hydraulic check valve in this hydraulic pump is not from AAK, he wants to see if AAK technical team can find out the reason. I said there was no problem with the 8:00 video conference tomorrow, because the chief engineer of AAK didn't travel, but I'm not sure if we can help. The next day in the video conference, their engineers showed the whole system. Our chief engineer found that the displacement of the hydraulic pump was 8ml / R, so he asked them to fill the hydraulic pump directly in the oil outlet pipeline, and then start it up. The hydraulic pump still had no flow.

He has done very well and occasionally inquires about the price with HYDRAULIC VALVE. For the hydraulic check valves purchased some time ago, the production director found that 20% of the hydraulic check valves have parameters that do not meet the standard, so they must get new qualified ones to the workshop within 20 days, otherwise the delivery of customer order would be delayed. Charles asked the original manufacturer of the hydraulic check valve to complete the replacement within 2 weeks. The manufacturer is willing to replenish, but the production can be started only after 15 days, that is to say, it will take 30 days to replenish. tried to find other suppliers of hydraulic check valves, and all replied that it could not be completed in such a short time. realized that something was going to happen and began to look for a new hydraulic valve manufacturer, contacting factories one by one. thought that had also participated in the quotation of this hydraulic check valve, and the samples provided also met the requirements, but it was not considered because the quotation of was slightly higher than that of other hydraulic valve manufacturers by 7%. sent us an e-mail to ask whether the quotation of hydraulic check valve offered 6 months ago can be maintained, and if we can finish an urgent order of 100 hydraulic check valves in 10-12 days. I felt that this should be an order for hydraulic check valve encountered with problem. told us the truth. About 20% of the hydraulic check valves produced by the original factory were unqualified and rejected by their production director. Now he must replenish them as soon as possible. General hydraulic valve manufacturers are unwilling to make such aftercare orders, but HYDRAULIC VALVE don't think so, because , as a production factory, has the same goal as the importer, that is to serve users well, so is more willing to help customers and solve complaints from users together. Fortunately, the corresponding materials are in stock. Combined with the 24-hour production line, our production director conservatively estimates that it can be completed in 12 days. asked us to start blanking now and the hydraulic check valve order will be issued tomorrow. After 10 days, 100 hydraulic check valves were successfully finished. was very happy and quickly air freighted these hydraulic check valves to the Thanks to the God, 100 hydraulic check valves finally arrived at their workshop in 20 days. informed us by email that their engineers installed, debugged and tested hydraulic check valves, which were all normal. The 7% higher price was also agreed by his owner. The owner was very amazed that can deliver so quickly and the quality was better than that of the original manufacturer.

a purchaser of in He is responsible for the procurement of hydraulic components. He has done an excellent job some time ago and has been praised by his supervisor for many times. Before the shopping season, he wanted to relax and planned to go on vacation with his family next week. A phone call from the owner disrupted all his plans. A major dealer in asked for help for a excavator produced by their company within 1 week . His engineer came to the user for routine maintenance and found that there was oil leakage in the hydraulic system. After pressure test, it was found that there was oil leakage in the hydraulic check valve, and 12 excavators had such faults. this hydraulic check valve, and got the reply that it was too cold in at this time. For such high frequency operation, even if the hydraulic check valve was replaced, it was estimated that the hydraulic check valve would still leak oil 1 week later. Unless more low temperature resistant sealing rings are used, this will take time to test, but the finishing time is to be determined. was so helpless, he had to find a new hydraulic valve supplier. asked several local hydraulic valve manufacturers. They either didn't have time to produce or require over 50pcs MOQ. After knowing these situations, the supervisor asked Daniel to give the dealer a plan that can be implemented within 10 days. had to cancel the vacation. thought of HYDRUALIC VALVE who he had contacted for inquiry before. He emailed us to ask whether we can produce the hydraulic check valve for the excavator, which needs to be resistant to low temperature. According to the drawings and working conditions provided by him, we advised that it takes 20 days to customize. All our existing hydraulic check valves are not close to this size. reiterated the hydraulic check valve needs to be low temperature resistant, and frankly told us what they are currently experiencing. I answered directly that the core lies in the low temperature resistant sealing ring. Daniel felt that maybe could solve this problem. After 18 days, we sent a sample of hydraulic check valve. The test results proved feeling. The parameters passed the test and there was no oil leakage at low temperature. The order for 12 hydraulic check valves was also easily confirmed. hanging heart can finally be put down. asked why hydraulic valve manufacturer needs time to be determined to test, and we solved it in 18 days. Why hydraulic valve manufacturer is unwilling to do this small quantities, but it is OK for hydraulic valve. At the same time, the price of hydraulic valve is cheaper than that made in and that made in the .

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