AAK Hydraulic Cartridge Needle Valve 100% free of blockage

Channing is from Canada. In October of last year, their customer wanted to
customize a hydraulic cylinder, requiring that the high pressure oil flow in
and out of the cylinder must be consistent. This will require a hydraulic
cartridge needle valve with high requirements. Channing made samples from a
cartridge valve manufacturer that has cooperated for 5 years, but the hydraulic
cartridge needle valve made by this manufacturer is easy to block, and the
throttling function does not match the hydraulic cylinder. It is not difficult
to solve the blockage problem of the hydraulic cartridge needle valve, but the
throttling function does not match, which is difficult for the manufacturer.
Channing contacted other hydraulic cartridge needle valve manufacturers, but
after a few days, there was no result. The engineer has been urging the
procurement progress of hydraulic cartridge needle valve, and Channing is
worried.

Channing found AAK in B2B and left us a message: Are you interested in
challenging the hydraulic cartridge needle valve with high stability throttling
function? After reading this message, we understand that he has a problem with
the function of the hydraulic cartridge needle valve purchased, or wants to
develop innovative hydraulic cartridge needle valve. After communication, it
was learned that his equipment had strict requirements for throttling function.
He provided the anatomical picture of the original hydraulic cartridge needle
valve and the hydraulic system of the equipment. AAK engineers found that
changing the throttling mode of the hydraulic cartridge needle valve is an
idea. Channing required AAK to make samples. After 40 days, AAK sent 18 samples
of hydraulic cartridge needle valves. 3 weeks after the samples were sent,
Channing informed that the throttling function of AAK hydraulic cartridge
needle valve could meet the requirements of hydraulic cylinder.

Last week, Channing told me that AAK hydraulic cartridge needle valve was
installed on the cylinder and had been working for more than 3 months without
blocking. Especially, the hydraulic oil flow in and out of the cylinder was
very stable. The customer was ready to place an order and asked about the
production time of 480 hydraulic cartridge needle valves.

AAK hydraulic cartridge needle valve is so innovative that it changes the
traditional orifice joint into a face throttle mode, completely saying goodbye
to the objective problem that small holes are easy to be blocked, especially
the flow control is more stable and the flow through the annular gap is changed
linearly. 360 ° face throttling, no blocking, stability improved by at least
70%.

1. Inside the hydraulic cartridge needle valve body, there is a hollow cavity,
which is vertically connected with the oil outlet hole, and one end of the
valve spool is in the cavity of the valve body.

2. The insert nut has a concave threaded socket. The adjusting screw is
installed inside the threaded socket. The other end of the valve spool passes
through the insert nut and is connected with the adjusting screw. An annular
gap is formed between the rod part of the valve spool and the hollow cavity to
form a 360 ° face throttle, which can linearly change the flow through the
hydraulic cartridge needle valve, so that the throttle flow is easy to control
and more stable.

3. The valve spool and valve body are matched with holes and rods to control
the clearance. The difficulty of the 360 ° face throttling is to control the
annular gap. Most hydraulic cartridge valve manufacturers can only give up.
Adjust the screw to control the size of the annular gap between the valve
needle and the valve body, change the size of the throttling area, and realize
the throttling of the hydraulic oil annular gap, with no flow fluctuation.

AAK hydraulic cartridge needle valve, 360 ° face throttle, no blockage, and no
flow fluctuation, you can also try it.

https://www.aakindustry.com/info-detail , /cartridge-needle-valves-aak526

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