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Product details
BUTTERFLY VALVE - DOUBLE ECCENTRIC (UNI/DIN/BS)
Double eccentric butterfly valves (UNI/DIN/BS) are industrial valves specifically designed to reduce friction, increase sealing efficiency, and enhance durability. They are commonly used in water supply systems, clean water treatment, technical water systems, and other industrial applications. They comply with international standards such as UNI (Italy), DIN (Germany), and BS (UK), ensuring compatibility and operation across various systems.
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Technical Specifications
- Nominal size (DN): DN150 – DN2800
- Working pressure (PN): PN10, PN16, PN25, PN40 (depending on model)
- Operating temperature: up to 70 °C for clean water, higher possible with special materials
- Valve body: Ductile iron EN-GJS-500-7 coated with epoxy according to GSK standard
- Disc: Stainless steel AISI 304/316 or epoxy-coated ductile iron
- Shaft: Stainless steel AISI 420/431
- Sealing gasket: EPDM certified for drinking water (WRAS/EN 681-1)
- Connection: Flanged according to UNI/DIN/BS/ISO standards
- Operation mechanism: Handwheel, gearbox, or electric/pneumatic actuator
Design Features
- Inclined disc, reducing friction when opening a few degrees.
- Low torque, easy operation.
- Shaft–disc connection with key and keyway, vibration resistant.
- Minimal gasket compression, extended service life.
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