Temperature Actuated Modulating Valve; Size 3/8 Inch x 3/8 Inch; Body Material Cast Brass; Sensing Bulb Details 11/16 Inch Diameter x 3-1/4 Inch Length; Temperature Range 115 to 180 Deg F (Heating); Pressure Rating 150 PSIG; Inclusions/Features Buna-N Valve Disc/Diaphragm, Disc Holder; Bypass Orifice Size 0.062 Diameter
No close fitting or sliding parts in water passages Range spring does not come in contact with the cooling water Easy manual flushing, if required Valve design minimizes chatter and water hammer