Triple Offset Butterfly Valve WCB DN2000

Product Name: Triple Offset Butterfly Valve

1. Basic Parameters

Item Parameter

Valve Type: Triple Offset Metal Hard-Sealed Butterfly Valve
Body Material WCB Carbon Cast Steel
Nominal Pressure PN10 (1.0 MPa)
Nominal Diameter DN2000
Driving Mode Worm Gear Manual Drive (Electric Actuator Optional for Extra-Large Diameters)
Connection Flanged Connection
Applicable Media Water, Sewage, Air, Flue Gas, Oil, etc.
Structural Features Triple Offset Structure, Metal Hard Seal, Conical Wedge Self-Sealing
Typical Applications Large municipal water supply and drainage, power plant circulating water, chemical, HVAC and other large industrial pipelines, for media shut-off and regulation

2. Structural Features and Performance Advantages

1. Frictionless Opening and Closing, Long Service Life

With the triple offset design, the disc does not contact the seat during rotation; sealing is achieved only at the moment of full closure.

2. Excellent Sealing Performance, Zero Leakage Achievable

Metal hard seal plus conical wedge self-sealing: after closing, the medium pressure assists in pressing the sealing surface, achieving leakage class up to Class VI. Bidirectional sealing is also available, ensuring reliable sealing in both directions and greater flexibility in pipeline design.

3. Suitable for High-Temperature and High-Pressure Conditions

Valve materials are selectable……, suitable for high-temperature media such as steam, flue gas and hot oil, with a maximum temperature of up to 600°C, meeting the demanding requirements of power, petrochemical and metallurgical industries.

4. Low Opening and Closing Torque, Lower Actuator Cost

No friction resistance during opening and closing results in low operating torque. For large-diameter butterfly valves equipped with a secondary gearbox, a smaller electric actuator can be selected, reducing the cost of the driving device.

5. Good Erosion Resistance

The metal hard-sealed structure prevents the sealing surface from being scratched by fine dust and particles in the medium, unlike soft-sealed butterfly valves.

6. 90° Quick Opening and Closing, Both Shut-off and Regulation

The disc rotates 90° for full opening or full closing, enabling quick shut-off and flow regulation.

7. Extra-Large Cast Steel Body with High Overall Rigidity

The DN2000 extra-large WCB cast steel body offers high overall rigidity and strong resistance to water-pressure deformation, with stable operating torque, suitable for large industrial pipelines.

3. Brief Product Description

The DN2000 triple offset metal hard-sealed butterfly valve features a WCB carbon cast steel body, PN10 nominal pressure, flanged connection, and worm gear manual drive (electric actuator optional). The triple offset structure ensures frictionless movement between the disc and seat during opening and closing, with conical wedge self-sealing at the moment of closure. The metal hard seal achieves leakage class up to Class VI and can provide bidirectional sealing. The valve offers low operating torque and 90° quick full-open/full-close operation, combining shut-off and regulation functions. The extra-large cast steel body provides high rigidity, resistance to water-pressure deformation, and excellent wear and erosion resistance. It is suitable for water, sewage, air, flue gas, oil and other media in large municipal water supply and drainage, power plant circulating water, chemical, HVAC and other industrial pipelines. With proper material selection, it can be used for high-temperature media such as steam, flue gas and hot oil.