Butterfly valves Type 22.015
Butterfly valve with threaded lugs in industrial design, favourable Zeta values, soft sealing, maintenance-free, stainless steel disc, fully isolatable according to energy saving regulations - EnEV, centric disc bearing, body with threaded lugs, as end valve, pipe can be flanged off on one side, body made of spheroidal graphite cast iron (GGG 40.3), high-quality epoxy casing coating, EPDM (W270)/NBR/FPM sleeve seal, exchangeable sleeve, casing can be dismantled, through stem, triple bearing, stem blow-out protection, connection between stem and disc not touched by medium, flared flanges DIN EN 1092-1,NBR sleeve with DIN DVGW registration for gas, EPDM sleeve with DIN DVGW registration for drinking water
- max. differential pressure: 16 bar to DN200 , AB DN200 max. 10 bar
- Nominal pressure: PN 6 / 10 / 16
- Nominal size: DN25-DN600
- Operation: Locking lever , worm gear or actuator
Use:
For drinking water and gas installations
Technical Data
Material:
Body:
Ductile iron GGG 40; EN-JS1030 (0.7040)
Stainless steel disc 1.4581
Cuff:
Optional EPDM, NBR or FPM Viton
Temperature:
EPDM -10 ° C to + 130 ° C
NBR -10 ° C to + 80 ° C
FPM Viton -10 ° C to + 150 ° C; (FPM Viton: not suitable for hot water)
Form:
for mounting on DIN Flanges.
Nominal size:
DN25 - DN600
DN25 to DN200 actuator with locking lever (on request with transmission, electric actuator, etc.)
DN250 to DN 600 actuator with worm (also available with electric actuator; pneum actuator, etc.)
Nominal pressure:
PN10-16
Options:
- NBR Cuff with DIN DVGW registration NG4313BQ0462, according to DIN EN 13774 for GAS
- EPDM Cuff with DVGW registration NW 6201BQ0460, according to DIN EN 1074-1 / -2 for drinking water (W270)
- Alternatively, with ÖVGW registration for gas and drinking water (on request)
