Double Eccentric Flanged Butterfly Valve

Description

The Double Eccentric Flange Butterfly Valve features a disc offset from both the pipe centerline and the seat plane. This double offset lifts the disc seal away from the seat immediately on opening, eliminating rubbing, reducing operating torque and greatly extending seal life. Its flanged ductile iron body and adjustable seal make it a dependable choice for large-diameter water lines.

Technical Specifications:

• Pressure Class: PN10 / PN16 / PN25
• Size Range: DN100 – DN2000
• Applicable Medium: Raw water, potable water, sewage, seawater (with suitable trim)
• Operating Temperature: -10°C to 80°C

Main Parts and Materials:

Key Product Features:

1. Double Offset Design: The seal disengages from the seat within the first few degrees of opening, minimizing wear.
2. Replaceable Seal: Disc seal ring can be adjusted or replaced without removing the body seat.
3. Bidirectional Sealing: Tight shut-off in both flow directions.
4. Low Torque Gear Operation: Worm gear operator, electric or pneumatic actuators available.
5. Epoxy Coated: Corrosion-resistant fusion-bonded epoxy coating inside and outside.

Applications:

Ideal for Water Transmission Mains, Water & Wastewater Treatment, Power Plant Cooling Water, and Irrigation Projects. Specifically suited for large pipelines needing long seal life and low operating torque.

Additional information