Butterfly valve Type 22.012 - DVGW
Maintenance-free soft-seated wafer butterfly valve with centring eyes, face-to-face length (DIN 3202 T3, series K1) DIN EN 558-1, basic series 20, body made of cast iron EN-JS1030 (short designation: EN-GJS-400-15, eh. GGG-40), with primer coat, EPDM, NBR or VITON sealing collar, from -10 degrees C to + 130 degrees C, (depending on gasket selection) disc made of stainless steel 1.4581 for shut-off and throttling, double sealing of the damper shaft with profile ring and dew point lock, centric disc bearing, fully isolatable according to energy saving regulation - EnEV, CE certification according to pressure equipment directive for fluids of groups 1 and 2. With drilled shaft for optional temperature measurement with THEA (THErmo display).
DVGW registration for drinking water DW-6201BR0244 (if EPDM sleeve is selected) according to DIN EN 1074-1/-2 including disinfection test DVGW VP646 and DVGW W270.
max. differential pressure: 16 bar until DN200 , from DN200 max. 10 bar
Nominal pressure: PN 6 / 10 / 16
Nominal size: DN25-DN600
actuation: Locking lever , worm gear or actuator
Body: Spheroidal graphite iron GGG 40; EN-JS1030 (0.7040)
Disk: Stainless steel 1.4581
Cuff: EPDM with DIN DVGW registration DW-6201BR0244, according to DIN EN 1074-1/-2 including disinfection test, DVGW VP646 and DVGW W270 for drinking water
EPDM -10º C up to +130º C
Drinking water shut-off butterfly valve type ZESA-DVGW for installation between flanges according to DIN.
DN25 - DN500
DN25 up to DN200 Operation with ratchet lever (on request also with gear, electric actuator etc.)
DN250 up to DN 500 operation with worm gear (on request also with electric actuator; pneumatic actuator, etc.)
PN6 - PN16
- Fine adjustment and locking device
- Worm gear and position indicator
- electric actuator with position indicator, 230V 50 Hz or 400V 50 Hz 3~
- pneumatic part-turn actuator, single-acting or double-acting
- THEA = THErmo display -20°C to +40°C or 0°C to 120°C