Water Flow Valves & Switches

Taco's PRV (Boiler Feed Valve) is designed for use in today's Hydronic heating systems. The model 3350 PRV reduces incoming pressure and automatically maintains the system pressure to the valve's adjustable set point. If the system pressure drops below the valve's set point it will automatically add water to the system. It is suitable for systems with fill pressure requirements between 10-50 PSI. Factory setting pressure set at 12 PSI (Media: water). The Taco PRV showcases a fast fill button with automatic reset. The valve automatically exits the fast fill mode once the system is full and ...

Watts 0559101 1/2" Tempering Control Valve This 1/2 inch lead free hot water control valve is designed for installation on water heating equipment to provide tempered water to point-of-use fixtures and is ideal for radiant heat applications. The double throttling design combines hot and cold water control for a sensitive response to water temperature changes in the mixing chamber. It consists of a lead free brass body, threaded union connections, solid wax hydraulic principle thermostat, integral filter washers and check valves, virtual shutoff upon loss of cold water supply, and a ...

Watts 1/2" Relief Valve 0388798 This 1/2" dual control regulator and relief valve is for use in commercial and residential hydronic heating systems to fill the boiler and piping system with water, and to maintain water pressure in the system at all times. It also provides make-up water to the system in the event of system leaks. It consists of an iron and bronze body construction with NPT threaded inlet and outlet connections, an attached iron body, diaphragm relief valve, a tight seating check valve, purge lever for manual purging, and a stainless steel strainer. It has high capacity ...

Haws® Emergency Valve For Eyewash Station, 12 GPM Model 9201EFE (patent pending) is a thermostatic mixing valve that mixes hot and cold water to supply tempered water of up to 12 gpm (45.4 L) for emergency eyewash fixtures. Unit employs a paraffin filled thermostatic mixing element. Lowest internal pressure drop where supply pressure is low, and a high Cold Water Bypass flow rate of 10 gpm (37.8 L). The improved brass design with a one piece casting uses internal check stops, over-sized valve seats, a shuttle design that eliminates valve binding, and a funnel design to improve temperature ...

3/4" npt straight shank, water main vent valve for use on high pressure hot or cold water or glycol mains and process applications, tapped at top for 1/8" npt safety drain connection for discharging moisture, body unscrews for easy cleaning, built-in check valve, max. operating pressure 150 psig, mas hydrostatic pressure 450 psig, max. temperature 250 degrees F.