Watts 3/4 IN 374A Iron Boiler Pressure Relief Valve, 30 psi, Forged Brass Inlet Features A Flood Sensor With Sentryplus Alert Technology To Detect Excessive Water Discharges From The Relief Valve Requires purchase of activation kit to activate sensor Iron body with forged bronze inlet 550,000 BTU/hr rating Non-metallic disc-to-metal seating Set pressure 30 psi Mfg #F358553

• Features A Flood Sensor With Sentryplus Alert Technology To Detect Excessive Water Discharges From The Relief Valve
• Requires purchase of activation kit to activate sensor
• Iron body with forged bronze inlet
• 550,000 BTU/hr rating

This 1/2 in. high capacity feed water pressure regulator 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 a bronze body with union threaded inlet and NPT threaded outlet connections, a tight seating check valve, purge lever for manual purging, and a stainless steel strainer. It has high capacity performance and a simplified servicing design. It is suitable for use in the boiler feed lines of hydronic heating systems. The maximum pressure is 100 psi (6.9 bar).

• Tight seating check valve
• Purge lever
• High capacity
• Stainless steel strainer
• Union threaded inlet connection
• Used to maintain water pressure in commercial and residential hydronic heating systems at all times
• Provides make-up water to the system in the event of system leaks

Watts 1/2 IN Lead Free Anti-Siphon Pressure Vacuum Breaker Backflow Preventer Includes A Freeze Sensor For Use With Sentryplus Alert Technology To Signal Facility Personnel When Temperature Nears And Reaches The Freezing Point Available freeze sensor connection kit to activate a monitoring system that trigger alerts for low and freezing temperatures Lead free construction Replaceable seat Female NPT inlet and outlet with quarter turn shutoffs Easy internal access Mfg #T792010

• Includes A Freeze Sensor For Use With Sentryplus Alert Technology To Signal Facility Personnel When Temperature Nears And Reaches The Freezing Point
• Available freeze sensor connection kit to activate a monitoring system that trigger alerts for low and freezing temperatures
• Lead free construction
• Replaceable seat

Watts 1 IN Lead Free Anti-Siphon Pressure Vacuum Breaker Backflow Preventer Includes A Freeze Sensor For Use With Sentryplus Alert Technology To Signal Facility Personnel When Temperature Nears And Reaches The Freezing Point Available freeze sensor connection kit to activate a monitoring system that trigger alerts for low and freezing temperatures Lead free construction Replaceable seat Female NPT inlet and outlet with quarter turn shutoffs Easy internal access Mfg #T792012

• Includes A Freeze Sensor For Use With Sentryplus Alert Technology To Signal Facility Personnel When Temperature Nears And Reaches The Freezing Point
• Available freeze sensor connection kit to activate a monitoring system that trigger alerts for low and freezing temperatures
• Lead free construction
• Replaceable seat

Watts 1 IN Lead Free Reduced Pressure Zone Backflow Preventer Assembly Features Flood Sensor With Sentryplus Alert Technology To Detect Excessive Water Discharges From The Relief Valve Alert features available with add-on sensor connection kit Lead free copper silicon alloy body NPT inlet and outlet connections Quarter turn full port resilient seated ball valve shutoffs Single access cover and modular check construction for the ease of maintenance Internal relief valve for reduced installation clearances Replaceable seats for an economical repair Test cocks are screwdriver slotted Mfg #88004112

• Features Flood Sensor With Sentryplus Alert Technology To Detect Excessive Water Discharges From The Relief Valve
• Alert features available with add-on sensor connection kit
• Lead free copper silicon alloy body
• NPT inlet and outlet connections