Ductile iron butterfly valves

Ductile iron butterfly valves have higher ductile rating (thus, the name) and will conform more to the swaying. While ductile iron has good ratings for dampening, it is not as highly recommended as cast iron for use on loud or heavy machinery because it doesn’t soundproof as well and is not as durable when vibrated. 

The butterfly valves from ductile iron have similar chemical composition to the ones of Gray iron but special treatment in the casting process modifies the metallurgical structure yielding mechanical properties equal to carbon steel but retains the superior corrosion resistance in certain environments. This metallurgical structure change make it an ideal choice for butterfly valve bodies.

For higher mechanical shock resistance under high or Iow temperature, and better tensile strength and elongation characteristics than those of ordinary gray iron butterfly valves, ductiIe iron butterfly valves are highIy recommended for the following services, sometimes, in place of cast steel valves :

  • ductile iron butterfly valves for piping for steam supply
  • air conditioning and heating systems
  • high-pressure gaseous service in general
  • ductile iron butterfly valves for piping for poisonous gas service

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Lug Type, Viton®

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Lug Type, Viton®

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Lug Type, Viton® seat  Dimensions: Size : DN 32 to DN 400;  Ends : Mounting between ANSI 150 and DIN PN 10/16 pipe flanges;  Specifications: Type of valve: Butterfly valve wafer type;  Cast iron butterfly valve min Temperature :..

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Wafer Type, EPDM

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Wafer Type, EPDM

Butterfly Valve - ductile iron GGG-50, stainless AISI 316 Disc - PN16 - Wafer Type, EPDM seat Dimensions: Size : DN 40 to DN 600 Ends : Mounting between ANSI 150 and DIN PN 10/16 pipe flanges.  Specifications: Type of valve: Butterfly valve wafer type Cast iron butterfly valve min Temperature : -10°C Ca..

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Wafer Type, High Temperature EPDM

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Wafer Type, High Temperature EPDM

Butterfly Valve - ductile iron GGG-50, stainless AISI 316 Disc - PN16 - Wafer Type, high temperature EPDM seat  Dimensions: Size : DN 32 to DN 1400 Ends : Mounting between ANSI 150 and DIN PN 10/16 pipe flanges.  Specifications: Type of valve: Butterfly valve wafer type Cast iron butterfly valve min Temperat..

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Wafer Type, NBR

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Wafer Type, NBR

Butterfly Valve - ductile iron GGG-50, stainless AISI 316 Disc - PN16 - Wafer Type, NBR seat Dimensions: Size : DN 40 to DN 600 Ends : Mounting between ANSI 150 and DIN PN 10/16 pipe flanges.  Specifications: Type of valve: Butterfly valve wafer type Cast iron butterfly valve min Temperature : -10°C Cas..

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Wafer Type, PTFE seat

Butterfly Valve - ductile iron GGG-50, AISI 316 Disc - PN16 - Wafer Type, PTFE seat

Butterfly Valve - ductile iron GGG-50, stainless AISI 316 Disc - PN16 - Wafer Type, PTFE seat  Dimensions: Size: DN 32 to DN 300 Ends: Mounting between flanges ISO PN10/16 from DN32/40 to 300 and ISO PN20 ANSI150 from DN40 to 300 Specifications: Type of valve: Butterfly valve wafer type Ductile iron butterfly valve min Tem..

Butterfly Valve for gas - ductile iron GGG50, 316 Disc, PN10/16 - Wafer, NBR

Butterfly Valve for gas - ductile iron GGG50, 316 Disc, PN10/16 - Wafer, NBR

Butterfly Valve for gas - ductile iron GGG50, Stainless 316 Disc, PN10/16 - Wafer Type – NBR seat Dimensions: Size: DN 32/40 to DN 200 Ends:  ISO PN10/16 from DN32/40 to 200 and ISO PN20 ANSI150 from DN40 to 200 .  Specifications: Type of valve: Centric butterfly valve for gas – wafer type Ductile iron butterfly valve min T..

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