Product introduction：1. Width dimension 40mm 2. Two-position two-way valve, which is used to slowly ventilate pneumatic equipment with electrically switchable pressure switching point. 3. The power supply voltage is 24VDC,110,230VAC. 4. Switched pressure switching point 5. Used to run the drive to the initial position slowly and safely. 6. Avoid sudden and unpredictable movements 7. Settable pressure building time