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NG # 09330004-HW-BRAY-004
Triple Offset Butterfly Valve – Tri Lok® Series is a high-performance isolation valve designed for high-pressure, high-temperature, and cryogenic service. Its non-rubbing triple-offset design, metal-to-metal sealing, and zero-leakage bidirectional shutoff provide reliable performance for critical industrial applications.
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Get A QuoteThe Tri Lok® Triple Offset Butterfly Valve combines a cam-like triple-offset geometry with metal-to-metal sealing to minimize seat wear and support long service life. Available from NPS 3 to 48 (DN 80–1200), it handles temperatures from -196°C to 450°C and pressure classes from ASME 150 to 900. Carbon steel, stainless steel, and high-alloy materials are available, while field-replaceable sealing components, a blowout-proof stem, and SIL 3 capability support demanding oil & gas, LNG, power, chemical, and cryogenic applications.
Size Range: NPS 3–48, DN80–DN1200; Larger sizes available upon request
Body Materials: Carbon Steel, Stainless Steel
Temperature Range: -320°F to 842°F (-196°C to 450°C)
Stem Materials: 17-4PH, 410 Stainless Steel, XM-19 (Nitronic 50)
Maximum Operating Pressure: ASME Class 150, 300, 600, 900; EN 1092 PN10, PN16, PN25, PN40, PN63, PN100, PN150
Seat Material: 316 Stainless Steel Hardened
Shutoff Rating: Zero Leakage
Disc Materials: Carbon Steel, Stainless Steel
Body Style: Lug, Wafer, Double Flanged, Gate, Buttweld
Design Standard: API 609, ASME B16.34, ASME VIII, API 600
Flange Drilling: ASME B16.5, ASME B16.47, EN 1092, ISO 7005
Testing Standard: ISO 5208, EN 12266-1, API 6D, API 598, BS 6755
Certifications: ABS, API 607, ATEX, CRN, ISO 10497, PED, PE(S)R, SIL, TR CU, TSG
Face-to-Face: API 609, ASME B16.10, ISO 5752, EN 558
Fugitive Emissions Standard: ISO 15848-1, API 641, TA Luft
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