Butterfly valve 481

pneumaticcontrolfor potable water

The GEMÜ 481 Victoria soft seated butterfly valve has a metal actuator and is pneumatically operated. Normally Closed, Normally Open and Double Acting control functions are available. The butterfly valve is available in nominal sizes DN 25 to 600 and standard installation lengths: ISO 5752/20 | EN 558-1/20 | API 609 category A (DIN 3202 K1) available in wafer, lug and U section body versions. -Low torques thanks to special disc contour -Improved sealing -Extensive applications using a variety of materials -Robust body coating in accordance with ISO 12944-6 C5-M -Fast operating times -Optional accessories are installed, set and tested so they are ready for operation -Min. 250 μm layer thickness body coating -Bubble tight sealing, in accordance with EN 12266-1/P12, leak rate A -Body configurations:Lug | U section | Wafer -Connection standards:AS | ASME | BS | DIN | EN | ISO | JIS -Body materials:EN-GJS-400-15, SG iron material -Body coating:Epoxy -Liner materials:EPDM | FKM | NBR | SBR, abrasion resistant -Disc materials:1.4408, investment casting material | 1.4408, polished investment casting material | EN-GJS-400-15, SG iron material Disc coating:EPDM | Epoxy | Halar® | Rilsan® Conformities:ACS | ATEX | Belgaqua | DNV GL | DVGW Drinking water | DVGW Gas | EAC | FDA | WRAS