1\” Swing Check Valve, Threaded Bronze B61 Y-Pattern Metal Seat, CL 300 Model 168T, 61Y Series Apollo 61Y-755-01 Full Port NPT Threaded Ends Rising Stem 100% Cast, Machined and Assembled in the USA Saturated Steam: 300 psi Cold Working Pressure: 600 psi Submittal Sheet Installation, Operation, & Maintenance Guide 61Y75501