Product Description
- The flanged butterfly valve with pneumatic actuator is ideal for the passage of liquid and gaseous, neutral media.
- The versions with an EPDM sleeve are suitable for general and industrial (mineral oil-free) applications with raw water, non-lubricated compressed air, neutral gaseous media and swimming pool water.
- Variants equipped with an NBR sleeve are suitable for general and industrial (mineral oil-containing) applications with raw water, oiled compressed air, neutral gaseous media, hydrocarbons, seawater and swimming pool water.
- The variants with an FKM sleeve are particularly suitable for use with hot, dry air or gases and special media.
- The body of the butterfly valve is made of spheroidal graphite iron, the disc is made of stainless steel. The sleeve is made of nitrile rubber, fluororubber or EPDM.
- The actuator housing is made of anodised aluminium, the gear rack and the piston are made of aluminium. The actuator has a cover made of acetal resin and seals made of nitrile rubber.
- The valve is equipped with a spring-closing pneumatic actuator. The quarter-turn actuator is ATEX-compliant.
- Housing material - ductile iron GGG40
- Disc material - stainless steel
- Collar material - EPDM, NBR or FKM
- Drive housing material - anodised aluminium
- Rack/piston material - aluminium
- Material cover actuator - acetal resin
- Material seal actuator - NBR
- Function - Spring-closing
- Nominal diameter - 32 to 300
- Installation length - 32 to 78 mm
- max. operating pressure for non-hazardous liquids - 16 bar
- max. operating pressure hazardous liquids - 16 bar
- Control pressure - 6 to 10 bar
- Temperature range (EPDM) - -10 to max. +110 °C
- Temperature range (NBR) - +5 to max. +85 °C
- Temperature range (FKM) - +5 to max. +180 °C
- Ambient temperature - -20 to max. +80 °C
- Face-to-face length - DIN 3202-K1, ISO 5752 series 20, EN 558-1 series 20, BS 5155 table 6 column 4, API 609 table 1
