Hydraulic Cartridge Directional Control Valve Service Life Twice its Peers

Ibeamaka is from a hydraulic equipment company in Pakistan, and has been in the
hydraulic industry for 3 years. At the beginning of last year, their hydraulic
packer was complained by customers. The leakage of the hydraulic cartridge
directional control valve in the system caused the equipment to work weakly,
which was caused by the wear of the valve spool end. The original manufacturer
of the hydraulic cartridge directional control valve said that because the
system was opened and closed frequently, even if the valve spool of the bearing
steel was worn, it was inevitable, so the service life of the hydraulic
cartridge directional control valve could only be within 1 year. The boss was
not satisfied with the original manufacturer's after-sales guarantee of more
than 9 months, and requested to change the manufacturer, and the service life
of the hydraulic cartridge direction control valve should not be less than 18
months. 1 week later, only one hydraulic cartridge valve manufacturer was
willing to sample, which made Ibeamaka more worried.

Ibeamaka searched the website of AAK hydraulic valves on Google and noticed
many customer cases about the service life of AAK hydraulic cartridge valves.
He sent an email asking if AAK can customize the hydraulic cartridge direction
control valve and the service life shall not be less than 18 months. According
to his drawing of hydraulic cartridge directional control valve, he also
specially reminded that the original manufacturer’s problem on the valve
spool. I told him that the hydraulic cartridge directional control valve spool
of the original manufacturer was probably deformed after heat treatment,
showing warping at both ends. During finishing, the end protective layer was
removed, which affected the wear life of the valve spool. 5 years ago, AAK
learned a similar lesson and has already upgraded the process. The valve spool
is free of wear and has a service life of more than 18 months. Ibeamaka quickly
sent an order for 120 hydraulic cartridge directional control valves.

Last week, Ibeamaka sent an email. The hydraulic packers that used AAK
hydraulic cartridge direction control valves had been working for 18 months.
There was no complaint about the leakage of the hydraulic cartridge directional
control valves. The boss was very satisfied. AAK hydraulic cartridge
directional control valve spool is wear-resistant and durable, and its service
life is twice that of the original manufacturer. It is due to the optimization
of the process and 3 tricks in the processing process:

1. The spool of the hydraulic cartridge directional control valve is provided
with a longitudinal main body of several bosses and two end faces at intervals.
The included angle between the transition surface between the end of the valve
spool and the adjacent boss and the axial direction of the valve spool is 5
degrees. This processing is particular, and most hydraulic cartridge valve
manufacturers cannot control the accuracy.

2. The surface treatment layer of the hydraulic cartridge directional control
valve spool forms a rotary machined surface.

3. The valve spool is easy to deform during processing. On the premise of
ensuring the overall size of the valve spool, AAK adopts rotary reducing
material processing, which can effectively retain the surface treatment layer
at the end of the valve spool, and is more resistant to wear and corrosion,
with a service life of 18 months.

AAK hydraulic cartridge direction control valve has unique skills for
processing, and its service life is twice that of its peers. You can also try a
small order!

https://www.aakindustry.com/info-det , ail/directional-control-valves-aak447

Click to Enlarge