You are here:

McCannalok – Double Offset Butterfly Valve

High Pressure & Temperature


Size Range

2” – 66” (50mm – 1500mm)

Maximum Allowable Operating Pressure

ASME Class 150, 300, 600

Temperature Range

-320ºF to 900ºF (-196ºC to 482ºC)

Shut Off Class

Zero Leakage in Normal and Dead End Service

Disc Materials

Stainless Steel, Nickel Aluminum Bronze

Stem Materials

Stainless Steel, Monel® K500

Body Style

Wafer, Lug, Double Flanged

Seat Materials

Resilient Seat: RPTFE with Resilient Energizer / PTFE with Resilient Energizer
Fire Safe: RPTFE and Inconel® with Resilient Energizer
Polar®: Engineered Thermoplastic
Metal Seat: Inconel®
Low Temp.: TFM with Resilient Energizer


High Pressure, High Temperature, Low Temperature, Cryogenic Service, Critical Service

High Pressure & Temperature

The Bray/McCannalok’s innovative seat design offers easy maintenance and industry leading performance in high and low pressure services.

Available with low temperature, cryogenic, metal to metal, and fire safe seat designs; the Bray/McCannalok offers robust performance in some of the most demanding applications. The Cryogenic Bray/McCannalok offers industry leading shut off for the air separation industry. The Metal Seated Bray/McCannalok offers low torque performance while providing customers with a rugged control or isolation valve for abrasive and harsh chemical applications. The Fire Safe Bray/ McCannalok is validated to the latest industry standards and is offered in a low temperature configuration for ship building.