Two port vent valve regulating air pressure

1.Two-way pressure balance, double safety protection

Positive pressure venting: when the pressure in the pipe is too high (medium expansion), it will automatically vent and relieve pressure to prevent overpressure explosion.

Negative pressure air replenishment (key): when the pipeline is under negative pressure due to pump shutdown, water hammer and rapid drainage, the valve will automatically turn to the suction mode to quickly inhale external air, balance internal and external pressures, and prevent the pipeline from being sucked, deformed or cracked (especially protect flexible pipelines such as PVC/PE).

Anti backflow seal: a one-way valve is built in the air inlet, which can only enter and leave, so as to prevent the leakage of media backflow and environmental pollution.

2.Reliable structure and long service life

Strong sealing performance: the main and auxiliary ports are sealed independently, and there is no leakage during normal operation; The floating ball is accurately matched with the sealing surface to avoid medium leakage and gas residue.