Welcome to www.aakindustry.com

The hydraulic flow control valve used in the Middle East has to be replaced in 6 months, but that of AAK has no worries in 12 months

Views : 94
Update time : 2022-06-24 14:55:24

Friedlich, from Wirth company in Germany, sold the drawworks of oil drilling rigs to the Middle East at the beginning of last year. Six months later, the customer complained that the disc brake controlled by the hydraulic cylinder of the drawworks was weak, resulting in equipment shutdown. The reason was that the hydraulic flow control valve in the hydraulic system was stuck. Friedlich wondered that the same batch of drilling rigs and drawworks had been sold to Canada, Central Europe and other markets for almost 1 year, and there was no such abnormality. The original manufacturer of the hydraulic flow control valves is not sure why it is stuck for half a year, but is willing to offer 30 hydraulic flow control valves for replacement and send them to the Middle East. Friedlich was very worried about such solution without knowing the cause of the stuck valve spool. Sure enough, a batch of hydraulic flow control valves had to be replaced 6 months later. This frequent after-sales service not only costs a lot, but also makes the customer dissatisfied. The boss asked Friedlich to purchase new hydraulic flow control valves with high temperature resistance and durability of more than 1 year as soon as possible to replace the current ones.

 

Friedlich found AAK on the Internet and left a message to us: why does the same hydraulic flow control valves have twice the service life difference in different working scenarios? I was puzzled when I saw this message. I learned the above story after communication. Our engineer checked the drawing of hydraulic flow control valve sent by Friedlich, and there was no problem from a technical point of view. The probability is that the high temperature in the Middle East and the high-frequency operation of the drawworks will lead to high hydraulic oil temperature and thermal deformation of the valve sleeve, which will reduce the matching clearance between the valve sleeve and the valve spool, affecting the movement of the valve spool until the valve spool is stuck. Friedlich learned that when the drawworks work, the oil temperature is above 70 , while the oil temperature of the normal hydraulic system is 30 -50 . Friedlich seemed to agree with our analysis and asked AAK to send samples of hydraulic flow control valves as soon as possible.

 

AAK engineers know that the core of this hydraulic flow control valve lies in the material selection of the valve sleeve. It depends on the job of our full-time material engineers. After 2 months' efforts, 6 kinds of materials were tested, and a special hot work die steel was determined as the valve sleeve for the hydraulic flow control valve. Its heat fatigue resistance and toughness fully adapt to high-temperature hydraulic oil, and the hardness and wear resistance of the material can also fully withstand the wear of more than 1 year. Eight months after the samples of AAK hydraulic flow control valves were sent out, Friedlich informed us that there was no complaint of valve spool jamming when AAK hydraulic flow control valves were used. I told him that within 12 months, if there was a complaint of valve spool jamming, we would refund all expenses.


AAK has a full-time Material Engineer in the selection of materials. He connects with the materials research institute and university laboratories to master new materials at the first time. He is specially responsible for screening, comparison and testing, and matching suitable materials according to the working conditions of the hydraulic valves, instead of general materials in the market., In the selection of raw materials and spare parts, it is targeted from the requirements of working conditions and never goes with the market trend. Especially in the customization of hydraulic valves with high requirements, there are unique methods and cases.

 

AAK hydraulic flow control valve, under high temperature, free of worry in 12 months, you can also have a small try!

 

AAK HYDRAULIC VALVES (267) 2022-06-24

Related News
Read More >>
AAK Hydraulic Cartridge Needle Valve used a 6 mm chamfer trick to solve Peder's equipment abnormality AAK Hydraulic Cartridge Needle Valve used a 6 mm chamfer trick to solve Peder's equipment abnormality
Dec .08.2022
Peder is from a hydraulic equipment company in Peru. They mainly focus on logistics transmission hydraulic equipment.
For Hydraulic Cartridge Directional Control Valve with 0.3μm valve hole, the Service Life of AAK is twice that of the original manufacturer For Hydraulic Cartridge Directional Control Valve with 0.3μm valve hole, the Service Life of AAK is twice that of the original manufacturer
Dec .07.2022
Erasmus is from a hydraulic equipment company in Colombia. He has been purchasing smoothly, but a batch of hydraulic cartridge directional control valves stumped him.
The Hydraulic Manifold that can't be solved by many manufacturers is easily solved by AAK with 3 Tricks The Hydraulic Manifold that can't be solved by many manufacturers is easily solved by AAK with 3 Tricks
Dec .06.2022
Asuman is from a Russian hydraulic equipment company and has purchased hydraulic manifolds from China for 4 years. At the beginning of this year, their customer wanted to customize a hydraulic manifold.
For the Hydraulic Manifold Block with porous system like cranial nerve, after AAK made samples successfully, customer placed an order of US$80,000 For the Hydraulic Manifold Block with porous system like cranial nerve, after AAK made samples successfully, customer placed an order of US$80,000
Dec .05.2022
Arno comes from England. They have a special hydraulic manifold block, which includes 13 groups of M32 threaded holes, and all of them are stepped holes.