Half Inch High Capacity Water Pressure Regulator For Watts 1156F Series Replacement Compatible With S1156F Boiler Water Regulator 10 To 25 PSI 0.7 To 1.7 Bar Union Joint Half Inch Inlet Outlet

Single-Unit 1/2-Inch Water Regulator for 1156F Series
✔️ 1/2 in inlet/outlet, union joint, 10-25 PSI, 100 PSI max

This is a half-inch feed water pressure regulator designed to replace S1156F and maintain boiler pressure and piping in residential and commercial hydronic heating systems. It mounts on the cold water supply line feeding the boiler and helps ensure steady operation and quick purge when needed.

✅ Inlet/Outlet connection size: 1/2 IN
✅ Inlet connection type: Union Joint
✅ Pressure setting: 10-25 PSI (0.7-1.7 BAR)
✅ Maximum working pressure: 100 PSI (6.9 BAR)
✅ Maximum operating temperature: 100°C (212°F)
✅ Minimum operating temperature: 0.5°C (33°F)
✅ Outlet connection type: Female Threaded
✅ Outlet thread type: NPT
✅ Materials: stainless steel, bronze, plastic, rubber
✅ Features: tight seating check valve, purge lever, stainless steel strainer
✅ Installation: vertical or horizontal on cold water supply to boiler

💡 What is a feed water pressure regulator used for in boiler systems and hydronic heating?

It keeps boiler piping pressurized at a safe, steady level and provides reserve water in case of leaks. Handy for steady performance in residential and light commercial setups.

- Maintains set pressure in hydronic loops - Reduces water hammer and pressure spikes - Simplifies filling and purging during maintenance - Compatible with 1/2 in union inlet components in the 1156F family