Watts FBV-TC-TH 1" Ball Valve Series, with 1/8" Test CockSeries FBV 2-Piece, Full Port, Bronze Ball Valves are used in commercial and industrial applications for pipe lines utilizing a full range of liquids and gases. It features a bottom-loaded blowout-proof stem, virgin PTFE seats and stem thrust bearing, a chrome-plated brass ball, bronze adapter, and a steel handle. It complies with MSS-SP-110. Model FBV has threaded NPT end connections. Pressure Rating: 600psi WOG (non-shock) @ 100F and 125psi WSP.Watts FBV-TC-TH 1" Ball Valve Series, with 1/8" Test Cock Features: 1/2 to 2 in. (15 to 50mm) 2-Piece, Full Port, Bronze Ball Valves Suitable for a full range of liquids and gases Minimal pressure drop due to full size ports Bottom loaded blow-out proof stem Virgin PTFE stem packing seal, thrust washer and seat Vinyl insulator on heavy duty zinc plated carbon steel handles Fast quarter-turn open or close operation Excellent for throttling and balancing application of non-abrasive fluids where minimum flow is 20% to 100% of valve capacity Low operating torque Adjustable stem packing gland 600psi (41 bar) WOG, 125psi (8.6 bar) WSP.