Bi-direction Metal Seal Manual Wafer Type Butterfly Valve
Nominal Diameter:NPS1/2"~ 8"
Pressure Range:CL150~600Lb
Body Material:Carbon steel, Stainless steel, Alloy steel
Working Temperature:-29℃~+200℃
Application:Suitable for switching the medium flow direction, as well as diverting or mixing fluids in pipeline systems such as water supply, petrochemical, metallurgy, mining, light textile, energy, papermaking, food, and steel industries.
Design Specifications
- Design Standard: API 608, BS 5351
- Face-to-Face Dimensions: ASME B16.10
- Connection Standard: ASME B16.5
- Pressure Test: API 598
- Pressure-Temperature Rating: ASME B16.34
Product Features
- Floating ball valve with lip-shaped sealing seat, ensuring good sealing performance, low friction coefficient, and low operating torque.
- Anti-blow-out stem structure: The stem is bottom-mounted (internally loaded) to prevent it from being ejected under pressure. Additionally, it forms metal-to-metal contact with the body after a fire, ensuring stem sealing.
- Fire-safe and anti-static device (for soft-seated floating ball valves).
- Locking device: To prevent misoperation, locking holes are provided at the fully open and fully closed positions, ensuring the valve remains in the correct position.
- Floating ball valves are suitable for frequent operation with rapid opening and closing; they are relatively small in size, lightweight, and easy to maintain; not limited by installation direction; feature low fluid resistance, no vibration, and low noise.