Reverse valve with drain and air-vent

(VT.171.N) Reverse valve with drain and air-vent – combined device with protection functions against reverse flow of working medium, water drainage beyond the valve, leakage of air blocks in case of vertical installation of the fittings. Manual air-vent and drain plug (included in the package) can be connected to the connector with female thread of diameter 1/4”. You don’t need the air-vent in case of horizontal installation of the valve. In this case you can fit a manometer instead of the air-vent. The product’s body is made of Brass CW617N with galvanized nickel plating of shaft and spindle plate – ABS plastic, spindle gasket – EPDM, springs – stainless steel brand AISI 316. The device is meant for use under working medium temperatures of -20 to 90°C. Minimum opening pressure surge – 0.025, closing – 0.05 bar.