.

The pressure spring of hydraulic valve was assembled after 3 times of selecting, and AAK became the exclusive supplier of a Russian customer

The pressure spring used in AAK hydraulic valve is selected for 3 times, and then assembled into goods only after complete matching, which completely avoids the pressure shortage of the hydraulic system. At present, not many manufacturers control the quality accordingly to this standard, thus they encounter lots of quality complaints in this respect.

Many hydraulic valve manufacturers also use piano steel wire to make pressure spring, but the price of piano steel wire is high, and the processing technology is relatively difficult. In the production process of compression spring, if there is bending or the compression spring is too short, it will cause poor sealing performance of the joint between valve core (poppet valve) and valve seat. If the contact surface is too wide, impurities are easy to enter the valve body. This will increase the wear of valve core and valve seat, resulting in insufficient pressure in the hydraulic system.

A Russian customer who has worked with us for many years asked why there is big quality difference between AAK Hydraulic valve and some manufacturers. After using for a period of time, nearly 10% of their hydraulic valves have the problem that the system pressure can not go up. It was thought that it was an assembly error, but still could not be solved after many times of debugging.

The customer sent us several qualified samples and also several samples with problem. After testing the pressure spring, the spring size in the unqualified samples varies, some parts are slightly bent. However, the spring size of the qualified hydraulic valves is normal. In the feedback report, we told the customer that the same batch of springs must be screened for 3 times to eliminate some defective pieces. If the manufacturer reduces cost, or the skill of producing piano steel wire spring is insufficient, then the spring will have problem and the hydraulic valve system pressure can not raise high in the process of use. After knowing all the information, the customer had a careful deliberation, and informed us 3 days later that they decided to list AAK hydraulic valve as their exclusive supplier.

AAK hydraulic valve has the piano steel wire pressure spring screened at least 3 times, first in the production process, then in the assembly process, and finally in the test bench to ensure that the hydraulic system pressure debugging is normal during the operation of the hydraulic valve.

AAK is extremely picky about the quality of hydraulic valves, not finding words to exaggerate it, we feel that is the case.



Send product request

To: AAK INDUSTRY CO., LTD
Your E-mail:
Message text:


Send to other suppliers

Other supplier products

AAK relief valve uses imported piano steel wire, the pressure spring has no noise, and 90% of the factory can do, but do not want to do
AAK relief valve uses imported piano steel wire, the pressure spring has no noise, and 90% of the factory can do, but do not want to do AAK relief valve has already used Korean piano steel wire instead of carbon steel as the core material of pressure spring for a long time, which co...
AAK relief valve has no pressure loss, saving VIP customer for a Spanish client
AAK relief valve has no pressure loss, saving VIP customer for a Spanish client AAK relief valve has no pressure loss, saving VIP customer for a Spanish client The relief valve hydraulic system produced by AAK has pressure for...
AAK Hydraulic Valves
AAK Hydraulic Valves AAK Industry Co., Ltdis mainly committed to the production of various hydraulic valve blocks, pressure control valves, threaded cartridge valves an...
AAK HYDRAULIC VALVE, A Hydraulic Cartridge Valve Manufacturer With Filtration Accuracy Up to 10 Microns, Had Mass Produced It 3 Years Ago
AAK HYDRAULIC VALVE, A Hydraulic Cartridge Valve Manufacturer With Filtration Accuracy Up to 10 Microns, Had Mass Produced It 3 Years Ago Nearly 90% of the hydraulic cartridge valve manufacturers in Ningbo can not achieve the filtration accuracy as high as 10 Microns. But AAK is 1 of ...
AAK Hydraulic Pressure Valve Has No Horn Hole, Which Saved US$80,000 Order for Adair
AAK Hydraulic Pressure Valve Has No Horn Hole, Which Saved US$80,000 Order for Adair 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 u...
All supplier products

Same products

AAK Hydraulic Valve Block Is 100% Burr Free, Which help Chase get out of dilemma resulted from 4 Proofing Failures
AAK Hydraulic Valve Block Is 100% Burr Free, Which help Chase get out of dilemma resulted from 4 Proofing Failures Seller: AAK INDUSTRY CO., LTD Chase is the purchaser of a hydraulic valve company in the United States. The purchase of hydraul...
Forged Hydraulic Cylinder Head
Forged Hydraulic Cylinder Head Seller: Hebei Golden-hammer forgings co., ltd Product: forged hydraulic cylinder head Application: hydraulic cylinder Place of origin: Hebei,...
AAK relief valve has never had a squeal problem. Dutch customer issued their first order for $60,000
AAK relief valve has never had a squeal problem. Dutch customer issued their first order for $60,000 Seller: AAK INDUSTRY CO., LTD AAK relief valve strictly controls the roundness error of oil sealing surface within 0.005 - 0.01...
AAK hydraulic valve has no leakage, an American customer placed the first order for 100,000 US dollars
AAK hydraulic valve has no leakage, an American customer placed the first order for 100,000 US dollars Seller: AAK INDUSTRY CO., LTD The roughness of the mounting surface of the hydraulic valve will seriously affect the leakage of...
The pressure spring of hydraulic valve was assembled after 3 times of selecting, and AAK became the exclusive supplier of a Russian customer
The pressure spring of hydraulic valve was assembled after 3 times of selecting, and AAK became the exclusive supplier of a Russian customer Seller: AAK INDUSTRY CO., LTD The pressure spring used in AAK hydraulic valve is selected for 3 times, and then assembled into ...