Wafer type butterfly valve, type 1120

Type 1120 is a concentric wafer butterfly valve and has many general applications in water distribution, water treatment, dams, power plants and in many industries. The valve can be used for both  ‘open/close’ and for flow control operations.  Operation can be manual, pneumatic, hydraulic or electric.

** Please contact us for different sizes and pressures.


Resilient seated, centric butterfly valve to DIN-EN 593 Wafer-Type
Shut-off valve for drinking and service water up to 100°C
DN32 – 1000, PN6 – 10 – 16
Face-to-face length DIN EN 558-1, basic series 20 (DIN 3202, series K1)

General information

  • Replaceable rubber sleeve with integrated seal for functionally reliable use for flared flanges, welding flanges, PE flanges as well as loose flanges with V-collar
  • Stable sealing seat due to liner with vulcanized support ring
  • Tight in both flow directions
  • Anti-blowout shafts
  • Tightness to DIN EN 12 266-1, leak-rate A
  • Top flange connection dimensions to ISO 5211
  • Flange connection dimensions to EN1092
  • Body: cast iron GG25, from DN700 ductile cast iron GGG40/50
  • Disc: ductile cast iron GGG50
  • Sleeve: EPDM
  • Valve shaft: stainless steel 1.4021
  • Maintenance-free shaft bearings
  • Certificate EN10204 3.1

Corrosion protection

  • Body: internally and externally epoxy coated, coating thickness >250 µm, blue RAL 5010
  • Disc: epoxy coated

Additional information


Operating pressure

150 PSI, PN6, PN10, PN16

Flange connection

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Top flange


EN 19

Face to face length

EN 558-1/20

Test standard

EN 12266-1


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Datasheets (PDF)

Type 1120 concentric butterfly valve datasheet
Gearbox & AUMA actuator selection table
Sleeve selection
Type 1120 concentric butterfly valve tender text