AAK Hydraulic Cartridge Needle Valve is throttled 360 °, 100% free of blockage and flow fluctuation

China [CN]

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