The Cast Iron (CI) Butterfly Valve is a quarter-turn valve designed for reliable and efficient control of fluid flow in pipelines. It consists of a centrally mounted disc that rotates to allow, restrict, or shut off flow. Its compact design, low-pressure drop, and ease of operation make it a preferred choice for water distribution, HVAC, fire protection, and industrial processing systems.
Typically designed as a wafer-type valve, it is easy to install between standard flanges and provides excellent sealing when closed.
Technical Specifications
1. General Specifications
Parameter
Specification
Valve Type
Butterfly Valve (Centric/Offset Disc)
Size
6" (150mm) Nominal Bore
Body Material
Cast Iron (GG25/EN-JL104)
Disc Material
Ductile Iron (EN-GJS-400) or Stainless Steel (SS304/SS316)
Seat Material
EPDM/NBR/Viton (Optional)
Connection Type
Flanged (EN 1092-2/ANSI B16.1) / Lug/Wafer (EN 558)
Operating Pressure
PN10/PN16 (150/300 PSI)
Max Temp. (EPDM)
120°C (248°F)
2. Design & Performance
✔ Bubble-Tight Shutoff – Low torque, zero leakage (ISO 5208) ✔ Lug/Wafer Design – Easy installation between flanges ✔ Lever/Gearbox Actuation – Manual or automated (ISO 5211) ✔ Fire-Safe Option – API 607/EN ISO 10497 compliant
3. Dimensions & Standards
Standard
Specification
Face-to-Face
108mm (EN 558 Series 20)
Flange Drilling
ANSI B16.1 Class 125/EN 1092-2
Testing
ISO 5208 (Leakage Class A/B)
📐 Specifications:
Parameter
Details
Valve Type
Butterfly Valve
Size
5" (125 mm Nominal Bore)
Body Material
Cast Iron (CI)
Disc Material
Ductile Iron / CI with Epoxy / Nylon / Nickel Plating
Seat Material
EPDM / Nitrile / Neoprene (soft seat)
Stem Material
Stainless Steel (SS 410 or SS 304)
Connection Type
Wafer Type (standard); optional Lug Type
End Connection Standard
Compatible with PN 10 / PN 16 / ANSI 150 Flanges
Operation
Lever Operated (Manual); Gear, Electric, or Pneumatic optional
Working Pressure
PN 10 / PN 16 (varies by seat/disc design)
Design Standard
IS 13095 / EN 593 / API 609
Temperature Range
-10°C to +80°C (based on elastomer selection)
Face-to-Face Dimension
As per ISO 5752 / EN 558
Applications
Water supply, HVAC, fire mains, irrigation, industrial utilities, etc.
📐 Specifications:
Parameter
Details
Valve Type
Butterfly Valve
Size
4" (100 mm Nominal Bore)
Body Material
Cast Iron (CI)
Disc Material
Ductile Iron / Cast Iron with Epoxy Coating or Nickel Plating
Seat Material
EPDM / Nitrile / Neoprene
Shaft/Stem Material
Stainless Steel (SS 410/304) or Zinc-Plated Carbon Steel
Connection Type
Wafer Type (suitable for sandwich mounting between flanges)
End Connection Standard
Compatible with ANSI 150 / PN10 / PN16 Flanges
Operation
Lever Operated (Manual); optionally Gear, Pneumatic, or Electric
Design Standard
IS 13095 / EN 593 / API 609
Pressure Rating
PN 10 / PN 16 (depending on design)
Temperature Range
-10°C to +80°C (based on seat material)
Face-to-Face Dimensions
As per ISO 5752 / EN 558
Applications
Waterworks, HVAC, firefighting systems, chemical, and process lines
📐 Specifications:
Parameter
Details
Valve Type
Butterfly Valve
Size
3" (80 mm Nominal Bore)
Body Material
Cast Iron (CI)
Disc Material
Ductile Iron / Cast Iron with Epoxy or Nickel Plating
Seat Material
EPDM / Nitrile / Neoprene (depends on application)
Stem Material
Stainless Steel or Carbon Steel (Zinc-coated)
Connection Type
Wafer Type (standard); optionally Lug Type
Operation
Lever Operated (Manual); optionally Gear / Pneumatic / Electric
Working Pressure
PN 10 / PN 16 (typically)
Temperature Range
-10°C to +80°C (varies with seat material)
Design Standard
IS 13095 / EN 593 / API 609 (as applicable)
Face-to-Face Dimensions
As per ISO 5752 / EN 558
Applications
Water treatment, HVAC, fire pipelines, general industrial systems
Product Details
The Cast Iron (CI) Butterfly Valve is a quarter-turn valve designed for reliable and efficient control of fluid flow in pipelines. It consists of a centrally mounted disc that rotates to allow, restrict, or shut off flow. Its compact design, low-pressure drop, and ease of operation make it a preferred choice for water distribution, HVAC, fire protection, and industrial processing systems.
Typically designed as a wafer-type valve, it is easy to install between standard flanges and provides excellent sealing when closed.
Technical Specifications
1. General Specifications
Parameter
Specification
Valve Type
Butterfly Valve (Centric/Offset Disc)
Size
6" (150mm) Nominal Bore
Body Material
Cast Iron (GG25/EN-JL104)
Disc Material
Ductile Iron (EN-GJS-400) or Stainless Steel (SS304/SS316)
Seat Material
EPDM/NBR/Viton (Optional)
Connection Type
Flanged (EN 1092-2/ANSI B16.1) / Lug/Wafer (EN 558)
Operating Pressure
PN10/PN16 (150/300 PSI)
Max Temp. (EPDM)
120°C (248°F)
2. Design & Performance
✔ Bubble-Tight Shutoff – Low torque, zero leakage (ISO 5208) ✔ Lug/Wafer Design – Easy installation between flanges ✔ Lever/Gearbox Actuation – Manual or automated (ISO 5211) ✔ Fire-Safe Option – API 607/EN ISO 10497 compliant
3. Dimensions & Standards
Standard
Specification
Face-to-Face
108mm (EN 558 Series 20)
Flange Drilling
ANSI B16.1 Class 125/EN 1092-2
Testing
ISO 5208 (Leakage Class A/B)
📐 Specifications:
Parameter
Details
Valve Type
Butterfly Valve
Size
5" (125 mm Nominal Bore)
Body Material
Cast Iron (CI)
Disc Material
Ductile Iron / CI with Epoxy / Nylon / Nickel Plating
Seat Material
EPDM / Nitrile / Neoprene (soft seat)
Stem Material
Stainless Steel (SS 410 or SS 304)
Connection Type
Wafer Type (standard); optional Lug Type
End Connection Standard
Compatible with PN 10 / PN 16 / ANSI 150 Flanges
Operation
Lever Operated (Manual); Gear, Electric, or Pneumatic optional
Working Pressure
PN 10 / PN 16 (varies by seat/disc design)
Design Standard
IS 13095 / EN 593 / API 609
Temperature Range
-10°C to +80°C (based on elastomer selection)
Face-to-Face Dimension
As per ISO 5752 / EN 558
Applications
Water supply, HVAC, fire mains, irrigation, industrial utilities, etc.
📐 Specifications:
Parameter
Details
Valve Type
Butterfly Valve
Size
4" (100 mm Nominal Bore)
Body Material
Cast Iron (CI)
Disc Material
Ductile Iron / Cast Iron with Epoxy Coating or Nickel Plating
Seat Material
EPDM / Nitrile / Neoprene
Shaft/Stem Material
Stainless Steel (SS 410/304) or Zinc-Plated Carbon Steel
Connection Type
Wafer Type (suitable for sandwich mounting between flanges)
End Connection Standard
Compatible with ANSI 150 / PN10 / PN16 Flanges
Operation
Lever Operated (Manual); optionally Gear, Pneumatic, or Electric
Design Standard
IS 13095 / EN 593 / API 609
Pressure Rating
PN 10 / PN 16 (depending on design)
Temperature Range
-10°C to +80°C (based on seat material)
Face-to-Face Dimensions
As per ISO 5752 / EN 558
Applications
Waterworks, HVAC, firefighting systems, chemical, and process lines
📐 Specifications:
Parameter
Details
Valve Type
Butterfly Valve
Size
3" (80 mm Nominal Bore)
Body Material
Cast Iron (CI)
Disc Material
Ductile Iron / Cast Iron with Epoxy or Nickel Plating
Seat Material
EPDM / Nitrile / Neoprene (depends on application)
Stem Material
Stainless Steel or Carbon Steel (Zinc-coated)
Connection Type
Wafer Type (standard); optionally Lug Type
Operation
Lever Operated (Manual); optionally Gear / Pneumatic / Electric
Working Pressure
PN 10 / PN 16 (typically)
Temperature Range
-10°C to +80°C (varies with seat material)
Design Standard
IS 13095 / EN 593 / API 609 (as applicable)
Face-to-Face Dimensions
As per ISO 5752 / EN 558
Applications
Water treatment, HVAC, fire pipelines, general industrial systems
