QFA-13/23 type air safety valveDetailed product description：

The QFA-13/23 air safety valve is used in conjunction with air filter pressure reducers in process automation control systems. When the output pressure of the pressure reducer exceeds the given value, the safety valve will open to vent, achieving the purpose of stabilizing the gas source and protecting the instrument.

technical indicators

Basic parameters of the model	QFA-13	QFA-23
Working range MPa	0.05～0.16	0.16～0.25
Opening pressure MPa	≤0.176	≤0.275
Rated flow rate m3/h (under standard conditions)	thirty
Connection thread size	G 3/4＂
Ambient temperature	-25 ～ +55℃
relative humidity	95％