Fire Sprinkler Wet Alarm Valves

Reliable® Models E, and E3 Alarm Check Valves serve as key components in wet pipe sprinkler systems, functioning as water flow alarm devices. These valves are designed to operate under both constant and variable water supply pressures, ensuring dependable activation when a sprinkler discharges.

When one or more sprinklers activate due to heat, the valve opens to permit continuous water flow into the system while simultaneously triggering a mechanical or electrical alarm.

Key Features:

• System compatibility: Designed for wet pipe sprinkler systems
• Pressure support: Compatible with variable and constant pressure supplies
• Alarm capability: Allows transmission of an electrical or mechanical alarm upon activation
• Installation flexibility: Supports vertical and horizontal installations (clapper hinge must face upward)
• Model E4 trim: Includes a 2” (50mm) TD Test and Drain Valve with an integral K2.8 (40 metric) test orifice

Reliable alarm check valves ensure timely alarm notification and reliable water delivery in fire events, supporting system compliance with applicable fire protection standards.