The Watts 0009188 1-1/4 inch high-performance water pressure reducing valve consists of a body material Lead-Free cast copper silicon alloy, integral stainless steel strainer, gauge tapping, replaceable seat module, NPT threaded female union inlet by NPT female outlet with a built-in thermal expansion bypass to control thermal expansion pressure. Low pressure range 10 – 35psi (69 – 241 kPa).

Series LFU5B Water Pressure Reducing Valves are designed to reduce incoming water pressure to a sensible level to protect plumbing system components and reduce water consumption. The LFU5B features Lead-Free construction to comply with Lead-Free installation requirements. This series is suitable for water supply pressures up to 300psi (20.7 bar) and may be adjusted from 25 – 75psi (172 – 517 kPa). The standard setting is 50psi (345 kPa). All parts are quickly and easily serviceable without removing the valve from the line. The LFU5B’s standard bypass feature permits the flow of water back through the valve into the main when pressures, due to thermal expansion on the outlet side of the valve, exceed the pressure in the main supply.

Features: 
 

• Standard construction includes Z3 sealed spring cage and stainless steel corrosion-resistant adjusting cage screws for accessible outdoor or pit installations
• Integral stainless steel strainer
• Replaceable seat module
• Lead Free* cast copper silicon alloy body construction
• Serviceable in line
• Bypass feature controls thermal expansion pressure (LFU5B-Z3)
• High temperature resistant reinforced diaphragm for hot water