For Pressure Relieving Proportional Valve equivalent to HydraForce TS38-20, a Canadian customer placed the annual order with AAK after 1 year of testing

China [CN]

Recently, we launched a hydraulic Solenoid Operated Pressure Relieving Proportional valve equivalent to HydraForce standard part TS38-20. It is a direct-acting, single stage, poppet-type, proportional, pressure relieving valve. The regulated pressure is proportional to the input electrical current.

Last April in 2022, a hydraulic cartridge valve customer in Canada found AAK when looking for a hydraulic cartridge valve manufacturer in China on Google. He sent us an inquiry list for over 40 hydraulic cartridge valves, with HydraForce Model Codes as the reference, the test order qty is 10 pcs of each, and the annual qty varies from 500 to 15,000 pcs. One of them is the HydraForce Pressure Relieving Proportional Valve TS38-20. For this model, very few cartridge valve manufacturers in Ningbo have existing production procedures, AAK does not have this model either. Due to big annual demand, customer decided to send AAK original samples to customize it. After 60 days, AAK finished the prototype development and delivered the 10 pcs of test order.

This August, we were very happy to learn from the Canadian customer that AAK Pressure Relieving Proportional Valve E-TS38-20 has passed their internal testing after 1 year of use, they are preparing for the 2024 buy plan and will send us the official order very soon.

AAK hydraulic pressure relieving proportional valve 2 advantages:

1. Hysteresis of 250Hz Flutter: 3.3% (Max.7% no flutter), benchmarking HydraForce quality

2. Its service life is 2 times that of its domestic peers

Technical parameters of AAK E-TS38-20 pressure relieving proportional valve:

Operating Pressure: 241 bar (3500 psi)

Flow rating: 11.4 lpm/3 gmp   

Pressure drop:

20 bar (290 psi) Note: Cartridge only (A)

10 bar (150 psi) Note: Cartridge only (B)

5.5 bar (80 psi) Note: Cartridge only (C)
Hysteresis of 250Hz Flutter: 3.3% (Max.7% no flutter)
Flutter Frequency: 150 Hz or higher

Channel: Free flow 1 to 2, coil de-energized; Relieving: flow 1 to 2, coil energized.

Step response: T(open)﹤50ms; T(close)﹤7ms; 

Fluids: Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range: 7.4 to 420 cSt (50 to 2000 ssu)
Temperature: - 40℃ ~ + 120℃ (Standard Buna N seals)

Cavity: 08-2

The newly launched AAK E-TS38-20 pressure relieving proportional valve, benchmarking HydraForce TS38-20, has been approved by customer in Canada after 1 year of testing. You are welcome to try it out. 

AAK HYDRAULIC VALVES (669) 2023-09-11

https://www.aakindustry.com/info-detail/proportional-valves-aak669