Y-Pattern Globe and Bonnetless Valves Y-Pattern Globe Valves - Seal Welded and Bonnetless type, Stop, Piston Check, Control, Stop Check, ½" to 4" to Class 4500 in A105, F11, F22, F91 and 316SS and alloys.

We offer a wide range of Y-pattern valves, both with seal welded and bonnetless design.  Available in stock in sizes from ½" to 4" and as per ASME classes 600 to 4500.

Bont® Y-pattern globe and piston check valves are designed to withstand the rigors of the most severe applications such as handling superheated steam and feedwater at very high pressure and temperatures. Also, vent and drain systems in supercritical cycle conditions. We are equally experienced with severe duty applications in chemical, petrochemical and general process industries.

Our valves are full bore, with a straight through streamlined flow pattern. Their Inclined stem allows less turbulence, higher flow Coefficients, and provides low body erosion. The back seat prevents leakage via the stem and also allows in-service packing replacement.

We supply valves with the following design characteristics:  Stop (IT), Piston Check (RT), Manual Flow Control (RE), and Stop Check (RI).