AAK Hydraulic Pressure Control Cartridge Valve 3 Innovations

Pedro, one of our old Brazilian customers, introduced AAK to Joao in August
last year. I thanked Pedro for his trust, but also requested myself to
thoroughly solve the problem of hydraulic pilot operated pressure control
cartridge valve encountered by Joao for the trust of Pedro. Trust is the
lifeline of AAK cartridge valve, whether it is the production, promotion or
marketing of cartridge valves. Joao's customer tried to order 5 sets of
hydraulic power units, but the commissioning was not smooth and the equipment
vibrated too much. Their engineer believed that the hydraulic pilot operated
pressure control cartridge valve purchased by Joao was not up to the standard,
and the change of the pilot pressure was delayed, resulting in the actuator
action delay and vibration. The original manufacturer of the hydraulic pressure
control cartridge valve said that it was manufactured according to the
customer's drawings and the accuracy was up to standard. Joao was caught
between supplier and engineer, which was very embarrassing.
 
Joao contacted his friend Pedro, which gave the opportunity for AAK cartridge
valve to perform. Joao's first email to us is as follows: Pedro told me that if
there is any difficulty in cartridge valve, just contact AAK. I stayed at AAK
cartridge valve website for more than 7 minutes. The fact that AAK solved
difficult problems for customers showed me hope. I told him that to avoid
equipment vibration, the response speed of the hydraulic pilot operated
pressure control cartridge valve should be increased first, and the pilot
pressure should not lag, so as to avoid the opening lag of the counterbalance
valve in the system. After 45 days, AAK sent the samples of hydraulic pressure
control cartridge valves.
 
Last week, Joao sent an email to inform us that with AAK hydraulic pilot
operated pressure control cartridge valve installed, the commissioning of the
hydraulic power unit was smooth and there was no vibration. The customer was
also satisfied. AAK hydraulic pilot operated pressure control cartridge valve
can improve the opening lag of the counterbalance valve in the system, because
we have made innovations in 3 aspects, which most cartridge valve
manufacturers have not expected.
 
1. The vent cavity, ejector hole and control cavity of the hydraulic pressure
control cartridge valve body are on the same axis. The side wall of the valve
body is provided with an oil outlet connecting the control chamber and the
inclined hole. The two oil ports of the valve body are respectively connected
with the main oil circuit and the control chamber of the hydraulic system,
forming two parallel connection channels.
 
2. The spring seat of the hydraulic pressure control cartridge valve is located
at the bottom of the ventilation chamber, the adjusting sleeve is threaded in
the ventilation chamber, the adjusting bolt is connected in the threaded hole
on the adjusting sleeve, and the first connecting channel has fixed hydraulic
resistance parts connected in series with small holes.
 
3. The side wall of the valve seat of the hydraulic pressure control cartridge
valve is provided with a small hole to connect the inner hole of the valve seat
with the annular cavity. There is a steel ball in the lower cavity of the valve
seat. A return spring is installed in the cavity at the upper part of the valve
base. The upper end of the ejector rod conflicts with the lower end of the
spring seat, while the lower end of the ejector rod conflicts with the steel
ball. The outer circumference of the ejector rod and the inner hole of the
valve seat form a circular gap.
 
AAK hydraulic pilot operated pressure control cartridge valve, fast response,
no vibration, you can also try it!

https://www.aakindustry.com/info-detail , /pressure-control-cartridge-valves-
aak513

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