OCV PTMR

Pneumatic Touch Manual Reset relay

Diaphragm actuated, spring-loaded relay valve, applicable for service on deluge and pre-action valve trims. The relay will vent or pressurize the hydraulic valve’s control chamber, in response to pneumatic pressure. In its “Ready” position, the PTMR pressurized by pneumatic pressure causing him to be in closed position which prevents draining of the deluge valve’s control chamber, keeping the deluge valve closed. Once the deluge valve is pneumatically actuated, the PTMR shifts to its “Open” position, allowing draining of the control chamber and latching open the deluge valve. Manual resetting is accomplished by “touch” - holding the finger on the air outlet port and the valve is reset to close & stand-by position.