Maintenance-free, soft-sealing, threaded flanged butterfly valve with cast-on threaded lugs with continuous thread, face-to-face length (DIN 3202 T3, series K1), DIN EN 558-1, basic series 20, cast iron body EN-JS1030 (abbreviation: EN-GJS-400-15, eh. GGG-40), with primer coat, disc made of stainless steel 1.4581, operating temperature from -10 degrees C to +130 degrees C, (depending on selection of sealing sleeve) EPDM, NBR or Viton sealing sleeve, for shut-off and throttling, double sealing of damper stem w. 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. Approved as end flap and for one-sided flanging. With drilled stem for optional temperature measurement with THEA (THErmo display). DVGW registration for drinking water DW-6201BR0244 according to DIN EN 1074-1/-2 including disinfection test DVGW VP646 and DVGW W270 (if EPDM sleeve is selected).
For drinking water and gas installations
Body: Ductile iron GGG 40; EN-JS1030 (0.7040)
Disc: Stainless steel 1.4581
Cuff: EPDM, NBR or FPM Viton
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)
for mounting between flanges according to DIN. Actuator with worm gear
DN25 - DN600
Optional versions are possible.