The U-Section Flange Butterfly Valve is designed for large-diameter pipeline systems where reliable shut-off and easy installation are required. The valve features a U-section body structure that allows it to be installed between flanges while maintaining excellent sealing performance.
With sizes ranging from DN500 to DN2400, the U-section butterfly valve is widely used in municipal infrastructure, pumping stations, and water treatment plants.

Other body structures such as wafer, lug, and double-flange butterfly valves are also available upon request.

Key Feature

• The special liner sealing contour eliminates the need for separate flange gaskets.
• The liner isolates the working medium from the valve body and shaft, reducing corrosion risk.
• Lenticular shaped disc provides good flow capacity and low pressure loss.
• Concentric disc design allows tight shut-off in both flow directions.
• PTFE coated self-lubricating shaft bearings ensure smooth operation and long service life.
• Body made of ductile iron EN-GJS-400-15 with epoxy coating (250 μm).
• Suitable for potable water systems with ACS certification.

FAQ

Q1: What is a U-section butterfly valve?
A U-section butterfly valve is a large diameter butterfly valve designed with a U-shaped body structure that allows installation between pipeline flanges.

Q2: What are the advantages of a U-section butterfly valve?
It provides reliable sealing, easy installation, and good flow performance for large pipeline systems.

Q3: What seat materials are available?
EPDM and NBR are commonly used depending on the working medium and temperature conditions.

Q4: Can this valve be used for drinking water systems?
Yes. The valve can be supplied with ACS certification for potable water applications.

Q5: What industries typically use U-section butterfly valves?
They are widely used in municipal water systems, wastewater treatment plants, pumping stations, and industrial pipeline networks.