Product Description
AL Air Lock pressure static device is composed of a TP Pneumatic pressure switch with two CO 3 way valves (ND 1/4”) in a single body.
This product is mounted on pneumatic actuators when they need to be isolated from control devices (for example, positioners or electro-pneumatic distributors) in the event of air pressure drop, when it falls below the pre-determined operating safety point.
The switching device operates immediately, even in the case of a gradual air-pressure decrease. After the air failure event, the device will automatically reset when the suplly pressure will be 1 bar greater than the set pressure, avoiding instability around the device set point.
Features
- Accurate pressure setting
- Insensitive to vibrations
- Reset hysteresis with established safety
- Set screw lockable with nut
Specifications
Operating pressure：2 to 7 bar(design pressure 10 bar)
operating temperature：-20°C to 70°C(lower or higher temperature on request)
Housing materials：Anodized aluminium or Stainless steel
Flow rate (CV) ：Inlet = 1，Outlet = 1
Pilot signal connection： 1/8” NPT
Output connections：1/4”NPT