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Butterfly Valves

Cast Steel Triple Offset Metal Seated Butterfly Valve, Class 150/300

Cast steel triple-offset metal-seated butterfly valve for Class 150/300 high-temperature shut-off.

Quick Specifications

Type Triple-offset metal-seated butterfly valve
Size NPS 2-24 (DN50-DN600)
Material ASTM A216 WCB body; stainless steel disc; hardfaced metal laminated seat
Pressure ASME Class 150 / 300
Connection Wafer, lug or double-flanged ASME ends by configuration
Temperature -29 to 400 °C, subject to selected trim and packing

Product Overview

Triple-offset geometry eliminates rubbing during most of the operating cycle and enables a metal-to-metal sealing arrangement. Final suitability depends on seat hardfacing, packing and the specified leakage requirement.

Specifications

Model TOBFV-WCB-METAL-CL150/300
Design Standard API 609 Category B / ASME B16.34; API 598 test
Size Range NPS 2-24 (DN50-DN600)
Pressure Rating ASME Class 150 / 300
Body Material ASTM A216 WCB body; stainless steel disc; hardfaced metal laminated seat
End Connection Wafer, lug or double-flanged ASME ends by configuration
Temperature Range -29 to 400 °C, subject to selected trim and packing
Typical Application Steam, hot oil, gas and high-temperature process isolation
Operation Worm gear; pneumatic/electric actuation common
Inspection & Documentation Hydrostatic shell and seat test; dimensional drawing, material certificate and certificate of conformity available on request