Adjustable Universal Relay Valve with Latching Mechanism URV-2-MA

The BERMAD URV-2-M-A is a Normally Open 2-way balanced poppet type, pressure operated and diaphragm actuated latching relay pilot valve, with an Adjustable Head return spring. The URV changes its position from open to close in response to pressure being supplied to its control chamber. Once open the latching mechanism holds the URV open, regardless of a return of control pressure, only after being manually and locally reset with a simultaneous return of control pressure will the URV close. The URV pilot valve is used as a relay device designed for use with BERMAD Deluge Valves. Its function is to actuate the BERMAD main valve upon pressure release from the URV control chamber (pressure to close). The URV-2-M-A is equipped with an adjustable lower spring to compensate for water column head that is experienced in wet pilot lines situated between 10 to 70 metres above the valve. The URV’s balanced-poppet design enables safe reliable operation with high accuracy using compact dimensions. The URV is specifically designed for Fire Safety systems in that it has no mechanical friction of the internal parts, greatly increasing reliability. This also makes it ideal for use with corrosive fluids such as firewater, brackish water or seawater.