In-Line Check Valves 1-1/4 in. for Fire Protection Systems
This 1-1/4 in. NPT durable cast brass In-Line Check Valve is ready for service in water-based systems, specifically fire protection/fire sprinkler systems and standpipes. With a rated working water pressure of 200 PSI, this valve provides a watertight defense against pollution & contamination caused by backflow. This check valve can be installed vertically or horizontally on a supply line or fire department connection (FDC) in accordance with NFPA code and local fire code. It features two 1-1/4 in. NPT (National Pipe Thread) connections, with a stainless-steel clapper that only opens when water flow exceeds the manufacturer minimum pressure of 2 PSI.
Fire Protection In-Line Check Valve Options & Additional Information
This In-Line Check Valve is available in a Brass finish in four different NPT x NPT sizes:
1 in., 1-1/4 in., 1-1/2 in., 2 in.
This product is not specifically listed by cULus, FM, or any other listing(s) organization – we recommend consulting with your local fire marshal or other authority having jurisdiction before installing.
NOTE: This product has a lead-free version available by special order.
