Description:
Triple Offset Butterfly Valve
Compared to gate, globe or ball valves of the same size and pressure class, Tri Lok provides space and weight savings while minimizing installation and maintenance costs.
Tri Lok is a premier isolation valve, well suited for operation in light vacuum to high-pressure applications. The standard, non-rubbing, metal-to-metal sealing system is inherently fire-safe. Applications requiring absolute zero leakage are ideally suited for triple offset technology.
Materials of Construction
Valve bodies and discs are available in WCB Carbon Steel and CF8M Stainless Steel as standard. Low-temperature Carbon Steel, Duplex Stainless Steel, Monel, Hastelloy® and NiAB are also available. The discs primary function is to «carry» the seal ring. As such, the disc material is commonly the same material as the body to allow full pressure/temperature rating and maintain uniform thermal expansion at elevated temperature. Standard stem materials are 17-4PH, 410 Stainless Steel and XM-19 (Nitronic®). Seat, seal ring and remaining trim are selected to meet the required mechanical properties while providing sufficient corrosion resistance. While the previously mentioned materials are defined as standard, custom engineered configurations are also available.
Descripción
Specs:
- Size Range:3” – 48” (80mm – 1200mm)
- Body Style:Wafer, Lug, Flanged and Gate
- Temperature Range:-320ºF to 842°F (-196°C to 450°C)
- Pressure Ratings:ASME Class 150, 300 and 600
- Shutoff Rating:Zero Leakage
- Body Materials:Carbon Steel, Stainless Steel & Other Materials Upon Request
- Disc Materials:Carbon Steel, Stainless Steel & Other Materials Upon Request
- Stem Materials:410 SS, 17-4PH, & XM-19 (Nitronic 50)
- Seat Materials:316 SS Hardened, 316 SS
- Fugitive Emissions:ISO 15848-1, API 641, TA Luft
| Valve Design & Pressure/Temperature Ratings: | ASME B16.34 ASME VIII API 609 |
| Fire Tested: | API 607 ISO 10497 |
| Fugitive Emission Testing: | TA Luft |
| Actuator Mounting: | ISO 5211 |
| Face to Face Dimensions: | API 609 Category B ASME B16.10 ISO 5752 |
| Seat Testing: | API 598 (Soft Seat) API 6D ISO 5208 Rate A BS 6755 Rate A |
| Flange Drilling: | ASME B16.5 ASME B16.47 ISO 7005 |
| Valve Markings: | MSS-SP-25 ASME B16.34 |
| Manufacturing Quality: | ISO 9001 CE/PED (97/23/EC) |
More technical information https://www.bray.com/triple-offset-butterfly-valve




