A spring-loaded, manual reset latching device, applicable for service on deluge and pre-action valve trims. In the “Ready” position, the DMR prevents draining of the deluge valve’s control chamber, keeping the deluge valve closed. Once the deluge valve is actuated, the DMR shifts to its “Latched-Open” position, allowing draining of the control chamber and latching open the deluge valve. Manual resetting is accomplished by holding the DMR’s knob until the deluge valve has closed.
Size Unit
Working pressure range
Working temperature
Fire Protection certifications
UL Listed
When installed on OCV valves
Body & Bonnet
Brass
Optional: Stainless Steel
Elastomers
NBR
Stem
Stainless Steel
Ball
Viton®
Spring
Stainless Steel
OCV DMR
OCV DMR
