No Chattering Auto Shutoff Valve


▪ When water tank is full, the O-Ring plunger[B] gradually comes down to the inside of the Tiered wall [A].

▪ Each wall of [A] has different heights and this special design can gradually stop the inlet water from 0% (ON) to 100% (OFF) without chattering and noisy.

▪ O-Ring plunger [B] can provide perfect sealing effect over 10,000 cycles (ON 3.2” OFF 1.8”)


ON/OFF controlling performance



 Basic structure of the RO membrane system

The Auto Shutoff Valve is operating by the pressure differential and it can apply to various system.

The below is one of the example that the Auto Shutoff Valve is applied to control the waste water.



 Working principle of the Auto Shutoff valve.

When the tank becomes full




When the tank becomes empty