8 in. (203.2 mm) Grooved Butterfly Valve with Tamper Switch offers precision flow control of gas, fluids and semi-solids. With a rated temperature of 32F (0C) to 212F (100C), this valve is suitable for indoor or outdoor use in water-based systems, including as a control valve in fire protection systems.
This 8 in. (203.2 mm) Grooved Butterfly Valve has a working pressure of 300 PSI (20.7 BAR). The polymer-coated ductile iron body and EPDM-rubber lined disc resist corrosion and mechanical damage. The handwheel assembly delivers a slow open and slow close, forming a leak-tight seal between the disc and NBR rubber O-ring.
A fitted tamper switch allows the 8 in. (203.2 mm) Grooved Butterfly Valve to activate a local alarm bell or horn when the valve comes to a partial or complete close. The bright-yellow position indicator offers an at-a-glance indication of the valve's position. When closed, the down-flow end of the pipe can be replaced without draining the entire system.
Dual supervisory switches and wiring make it easy to connect the 8 in. (203.2 mm) Grooved Butterfly Valve to a fire control panel. Designed to install quickly with a roll-grooved body.
UL Listed. VdS and FM-approved.