Watts LFM116 GRV B 20 200 PI 8 Part of the LFM116 Series Hanes Geo Specifications Air Valve No Brand Specifications Air Valve No Brand Watts Buy American Act Compliant NO Case Finish Chrome Case Material Steel Dial Size 3 IN EAN 098268590685 Entry Style Bottom Inlet Connection Size 1 2 IN Inlet Connection Type Male Threaded Lead Free YES Manual Shutoff No Maximum Operating Temperature Fahrenheit 140 Minimum Temperature Fahrenheit 32 Part Number 0121721 Pressure Scale Does Not Apply To Product Sensing Element Yes Sensing Fluid No Series LFTBR Stem Shaft Material Brass Temperature Range 32 to 140 degrees F Thermostat Probe Length 3 IN Thermowell Yes VR Retaining Valve No Window Material Kostil Polymer Specification Sheet LFTBR 4 to 10 Body Material Lead Free Cast Copper Silicon Alloy Brand Watts Corrosion Resistant Coating No Disc Material EPDM EAN 098268349887 Gauge Option No Gauge High Pressure Reduced Pressure Range 50 to 145 PSI High Pressure Reduced Pressure Setting 50 PSI Inlet Connection Size 1 IN Inlet Connection Type Female Threaded Inlet Thread Type NPT Lead Free YES Maximum Operating Temperature Fahrenheit 160 Maximum Working Pressure BAR 20 Body and cover are constructed of strong and durable ductile iron (ASTM A536) it serves as a pressure relief control valve