Sizes 80mm–1800mm (3"–72"), Class 150–600. Metal-to-metal zero-leakage seating. Heavy duty, tight shutoff, replacing gate & ball valves.
| Size Range | 80mm–1800mm |
| Pressure Rating | Class 150–600 |
| Body Styles | Wafer, lugged and double-flanged short / long pattern |
| Design Standard | ASME B16.34 / API 609 Category B |
| Face to Face | API 609 Category B, ISO 5752 or ASME B16.10 |
| Testing | API 598; API 607, ISO 15848 and BS 6364 qualifications available |
| Maximum Seat Temperature | Up to 538°C for laminated graphite seating, subject to material selection |
| Production Capacity | 12,000 units/year |
| Category | Butterfly |
Key Features
Engineered for Performance
- Triple-offset, non-rubbing seating geometry
- Torque-seated metal-to-metal shutoff
- Stainless-steel / graphite laminated seal stack
- Pressure-assisted, self-compensating sealing
- Anti-blowout shaft and protected bearings
- Bi-directional zero-leakage option
- Inherently fire-safe construction
Need custom specifications? Our engineering team can help you find the right solution.
Material Options
Typical Materials of Construction
| Body | ASTM A216 WCB or ASTM A351 CF8M |
| Body seat | Stellite 6 / Alloy 21 overlay or integral stainless-steel seat |
| Disc & seal | WCB or CF8M disc with SS316 / duplex stainless-steel and graphite laminated seal stack |
| Drive shaft | ASTM A564 Type 630 17-4PH H1150D |
| Packing & bearings | Braided and die-formed graphite packing with nitrided SS316 / Nitronic-equivalent bearings |
Final material selection depends on pressure, temperature, media and service conditions.
Applications
Common Service Areas
- Conventional power
- Oil & gas / refining
- Desalination
- Chemical processing
- Cryogenic and other special services
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View DetailsYour Flow Challenge Deserves More Than a Catalogue.
Our engineering team works with you to specify, design, and deliver the exact valve solution your application demands.