Watts FP53L-M1-300 1/2 - Part of the FP53L-M1 Series mainline-siltfence Cast iron body with acid-resisting

Cast iron body with acid-resisting enamel coating

ZM400BS-3IC

funnel and spring

It features a full PVC body

ZB400N-4IC

Watts FP53L-M1-300 1/2 - Part of the FP53L-M1 Series mainline-siltfence Cast iron body with acid-resistingThis 1 2 inch, 300 psi pressure relief valve is designed to relieve thermal expansion in fire protection systems. It features a lever for flushing and draining the system and a second lever to lock the valve closed for hydrostatic testing of the system. This relief valve is FM and UL listed. Features 1 2 IN male NPT inlet connection 1 2 IN F NPT outlet connection 300 psi set pressure FM and UL Listed Specifications Body Material Bronze Brand Watts EAN