Product:Grooved Butterfly Valve with Tamper Switch
Code:XD381X
Size: 2"-12"(DN50-DN300)
Material: Ductile iron ASTM A536, 65-45-12/Cast Iron ASTM A126 Class B/EN-GJS-450-10/ ENJS1040
Dimension: AWWA C515,ASME B16.10,BS5163,AWWA C503, BS & DIN Standard, BS750,EN1074,BS EN14339, BS 5041, BS 5154
Connection: AWWA C606, ASME B16.1 CL 125, ISO 5211,ASTM A888, ISO 6182, BS EN 1092-2
Pressure Rating: 200PSI
Temperature: -10-120 ºC
Surface Treatment: ANSI/AWWA C550,Epoxy coated interior and exterior by Electrostatic
Certificate: UL Listed/FM Approved /NSF/ANSI61&NSF/ANSI 372
Medium: Water, gas etc.
Here's a clear and professional paragraph-style description of a Grooved Butterfly Valve with Tamper Switch, commonly used in fire protection systems:
A Grooved Butterfly Valve with Tamper Switch is a type of control valve designed primarily for use in fire sprinkler and standpipe systems. It features grooved ends for quick and secure installation using grooved couplings, which minimizes labor and downtime. The valve operates with a quarter-turn handle or gear operator and includes a disc-shaped obturator that rotates to open or close the flow path. Butterfly valves are compact, lightweight, and require less space than traditional gate valves, making them ideal for tight installations.
What distinguishes this valve for fire protection use is the integration of a tamper switch. This electrical switch monitors the valve's position and sends a signal to the fire alarm control panel if the valve is closed or tampered with. This ensures real-time supervision and helps prevent accidental or unauthorized shutdown of the fire suppression system. The tamper switch typically complies with UL, FM, and NFPA 13 requirements, and may support both supervisory and alarm functions.
Grooved butterfly valves with tamper switches are widely used in alarm check risers, sectional control valves, and zone isolation points. Their reliability, ease of maintenance, and compatibility with common piping systems make them a critical component in ensuring the safety and integrity of modern fire protection networks.

