Bray – Triple Offset Butterfly Valve – Tri Lok
Butterfly Valves
Bray - Triple Offset Butterfly Valve - Tri Lok

Engineered for High Temperature and High-Pressure Industrial Applications

As an authorized distributor of Bray, we present the Tri Lok Triple Offset Butterfly Valve, designed for high-temperature and high-pressure applications requiring absolute zero leakage. Compared to gate, globe, or ball valves of similar size and class, Tri Lok offers compact design, lower weight, and reduced installation and maintenance costs.

Its non-rubbing, metal-to-metal seal ensures zero leakage with minimal torque and is certified fire-safe. The splined disc/stem connection maintains precise alignment under temperature and pressure variations, providing reliable performance and extended service life.

With triple offset geometry, the valve eliminates friction between the seat and seal ring, reducing wear and ensuring a bi-directional, torque-seated metal seal for dependable, long-term operation

Size RangeNPS 3 to 48 / DN 80 to 1200
Larger sizes available upon request
Body MaterialsCarbon Steel, Stainless Steel
Other Materials Upon Request
Temperature Range-320°F to 842°F (-196°C to 450°C)
Higher temperatures upon request
Stem Materials17-4PH, 410 Stainless Steel, XM-19 (Nitronic 50)
Maximum Allowable Operating PressureASME Class 150, 300, 600, 900
EN 1092 PN 10, 16, 25, 40, 63, 100, 150
Seat Materials316 Stainless Steel Hardened
Shutoff RatingZero Leakage
Disc MaterialsCarbon Steel, Stainless Steel
Other Materials Upon Request
Body StyleLug, Wafer, Double Flanged, Gate, Buttweld
Design StandardAPI 609, ASME B16.34, ASME VIII, API 600
Flange DrillingASME B16.5, ASME B16.47, EN 1092, ISO 7005
Testing StandardISO 5208, EN12266-1, API 6D, API 598, BS 6755
CertificationsABS, API 607, ATEX, CRN, ISO 10497, PED, PE(S)R, SIL, TR CU, TSG
Face to FaceAPI 609, ASME B16.10, ISO 5752, EN 558
Fugitive Emissions StandardISO 15848-1, API 641, TA Luft
ApplicationsBulk liquid storage, oil & gas, LNG storage & transportation, steam distribution systems, power generation, geothermal steam, sugar & ethanol, pulp & paper liquor, refining, chemical processing, water & wastewater, air separation, cryogenic services