GEMÜ Butterfly Valves – Series D480, D481, D487, D488

• Nominal Size: DN 32 – DN 1600

• Operating Pressure: 0–16 bar

• Operating Temperature: -60°C to +210°C (depending on gasket material)

• Application Area: Shut-off and control of fluids in industrial applications

Valve Materials:

• Body Options:
  – Ductile iron EN-GJS-15 (GGG40), epoxy-coated
  – Grey cast iron EN-GJL-250 (GG25)
  – Stainless steel ASTM A351, CF8M
  – Cast steel ASTM A216 WCB
  – Bronze DIN 1705 (Rg 10)
  – Others on request

• Disc Options:
  – Stainless steel 1.4408
  – Polished stainless steel 1.4408
  – Halar-coated stainless steel 1.4408
  – Epoxy-coated ductile iron EN-GJS-15 (GGG40)
  – Rubber-coated ductile iron
  – Bronze
  – Uranus B6 Super Duplex 1.4539

Seal Materials: HNBR, Butyl, FPM GF, EPDM, Flucast AB/P, Flucast AB/E, NBR, Silicone

Connections: PN 10/16 flanged
Body Configuration: Wafer / LUG / U-section

Actuation Options:

• D480: Bare shaft (no actuation)

• D481: Pneumatic actuator – Normally Closed / Normally Open / Double-acting

• D487: Manual operation

• D488: Electric actuator