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Product details
BUTTERFLY VALVE - U-SECTION (UNI/DIN/BS)
U-type butterfly valves (UNI/DIN/BS) are butterfly valves with a "U-Type" design and flanged/threaded lugs, commonly used for installation between two flanges according to international standards (UNI, DIN, BS). This type of valve is popular in water supply systems, HVAC, wastewater treatment, and many industrial applications.
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Basic Concept
- U-Type Butterfly Valve: A wafer-type butterfly valve with flange holes or threaded lugs, ensuring secure installation between two flanges.
- Connection standards: UNI/DIN/BS/ANSI/JIS – ensuring compatibility across different piping systems.
- Applications: Water supply systems, HVAC, wastewater treatment, chemical industry, food industry.
Technical Specifications
- Nominal size (DN): DN40 – DN3200 (2” – 48”)
- Working pressure (PN): PN10, PN16, PN25 (equivalent to ANSI 150LB, JIS 10K/16K)
- Operating temperature:
- -10 °C to 80 °C (NBR seat)
- -10 °C to 120 °C (EPDM/PTFE seat)
- Valve body: Cast iron, ductile iron, carbon steel, stainless steel, aluminum alloy
- Disc: Ductile iron, stainless steel (SS304/316), bronze, aluminum alloy
- Shaft: Stainless steel (410/420/431/304/316), bronze, Monel
- Sealing seat: EPDM, NBR, PTFE, Viton, Hypalon
- Pressure test:
- Shell: 1.5 × rated pressure
- Seat: 1.1 × rated pressure
- Operation mechanism: Lever, handwheel, gearbox, or electric/pneumatic actuator
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