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Watts 174A 135 FS 1 1 2 Part of the 174A Series Woven Fabric Specifications Air Valve No Brand Specifications Air Valve No Brand Watts Buy American Act Compliant NO Case Finish Zinc Plated Case Material Steel Dial Size 2 1 2 IN EAN 098268589191 Entry Style Back Inlet Connection Size 1 2 IN Inlet Connection Type Male Threaded Lead Free YES Manual Shutoff No Maximum Operating Temperature Fahrenheit 248 Minimum Temperature Fahrenheit 32 Part Number 0121667 Pressure Scale Does Not Apply To Product Sensing Element Yes Series LFTB Stem Shaft Material Brass Temperature Range 32 to 248 degrees F Thermostat Probe Length 2 IN Thermowell Yes Window Material Kostil Polymer Specification Sheet LFTB Specifications Body Material Iron Brand Watts EAN 098268587883 Inlet Connection Size 2 IN Inlet Connection Type Female Threaded Inlet Thread Type NPTF Lead Free Not In Scope Maximum Working Pressure PSI 30 Outlet Connection Size 2 1 2 IN Outlet Connection Type Female Threaded Outlet Thread Type NPTF Part Number F384240 Pressure Range Does Not Apply to Product Pressure Relief Setting PSI 40 Series 740 Specification Sheet 174A