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OEM 150LB WCB Wafer Triple Eccentric Butterfly Valve Manufacturer, Factories
Product Description
Zero Leakage
The triple eccentric design ensures bubble-tight shut-off, ideal for critical applications requiring no leakage, such as gas or chemical processing.
Low Friction and Wear
The offset geometry minimizes contact between the disc and seat during operation, reducing wear and extending valve life.
Compact and Lightweight
The wafer design requires less space and weight compared to flanged or lug valves, making it easier to install in tight spaces.
Cost-Effective
Wafer-style valves are generally less expensive than other connection types due to their simpler construction and reduced material use.
High Durability
Made from WCB (cast carbon steel), the valve offers excellent mechanical strength and resistance to corrosion and high temperatures (up to +427°C with metal seats).
Versatile Applications
Suitable for a wide range of media, including water, oil, gas, steam, and chemicals, across industries like oil and gas, power, and water treatment.
Low Torque Operation
The triple eccentric design reduces the torque needed to operate the valve, allowing for smaller, more cost-effective actuators.
Fire-Safe Design
Often compliant with API 607 or API 6FA, making it suitable for fire-prone environments like petrochemical plants.
High-Temperature/Pressure Capability
Metal-to-metal seats handle high temperatures and pressures, unlike soft-seated valves, enhancing reliability in demanding conditions.
Ease of Maintenance
The reduced wear on sealing surfaces and robust construction result in lower maintenance needs and longer intervals between servicing.
| Size & Pressure Rating & Standard | |
|---|---|
| Size | DN50-DN600 |
| Pressure Rating | ASME 150LB-600LB, PN16-63 |
| Face to Face STD | API 609, ISO 5752 |
| Connection STD | ASME B16.5 |
| Upper Flange STD | ISO 5211 |
| Material | |
| Body | Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529) |
| Disc | Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529) |
| Stem/Shaft | SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel |
| Seat | 2Cr13, STL |
| Packing | Flexible Graphite, Fluoroplastics |
| Actuator | Hand Lever, Gear Box, Electric Actuator, Pneumatic Actuator |
Frequently Asked Questions
What makes the triple eccentric design achieve zero leakage?
The triple offset geometry eliminates mechanical rubbing between the disc and the seat during operation. The seal only makes contact at the final closing point, providing a uniform, bubble-tight shut-off.
What temperature range can these valves withstand?
Engineered with metal-to-metal seating and robust body materials like WCB or stainless steel, these valves can handle high operating temperatures up to +427°C.
Why choose a wafer connection over flanged or lug connections?
Wafer-type valves feature a lighter, more compact profile that saves valuable pipeline space and reduces structural weight, making installation simpler and significantly more cost-effective.
What operation and actuation options are available?
Due to the low operating torque, valves can be configured with manual hand levers, gearboxes, or fitted with electric and pneumatic actuators via the standard ISO 5211 mounting flange.
Are these valves suitable for fire-safe critical environments?
Yes, these valves are designed to meet fire-safe standards such as API 607 and API 6FA, making them dependable for high-risk applications in petrochemical and oil and gas processing plants.
