Water Regulating Valve 3 Way NPT Connection Size (In.) 1-1/4 Port (In.) 1 1/4 in Min Fluid Temp (F) -4 Degrees F Design Pressure (PSIG) 630 psig Set Points 200 to 400 Application Head Pressure Control with Non-Corrosive Refrigerants For Use With Non Corrosive Refrigerants STT17A-617R SEP93A-603R