The Cast Iron Dual Plate Check Valve (Non-Return Valve) in 6" (150mm) size is a compact, wafer-type valve engineered to allow flow in one direction while automatically preventing reverse flow. Featuri...
Product Details
The Cast Iron Dual Plate Check Valve (Non-Return Valve) in 6" (150mm) size is a compact, wafer-type valve engineered to allow flow in one direction while automatically preventing reverse flow. Featuring dual spring-loaded plates (discs), it offers rapid shut-off with minimal pressure drop and significantly reduces the risk of water hammer. Constructed with a durable Cast Iron body, it is ideal for use in water, HVAC, fire fighting, and general fluid handling systems.
Technical Specifications:
Feature
Details
Valve Type
Dual Plate Check Valve / Non-Return Valve (NRV)
Nominal Size
6” (150mm)
Body Material
Cast Iron (CI) – IS 210 Gr. FG 200 / FG 260
Disc Material
Ductile Iron / Stainless Steel (AISI 304 / 316)
Shaft/Pin
Stainless Steel (AISI 410 / 304 / 316)
Seat Material
Nitrile Rubber / EPDM / Viton (based on application)
Design Standard
API 594 / IS 5312
Face-to-Face Dimension
As per ANSI B16.10 / Manufacturer’s standard
End Connection
Wafer Type – Suitable for ANSI 150# / PN 10 / PN 16 flanges
Working Pressure
PN 16 (16 Bar)
Test Pressure
Body: 24 Bar, Seat: 17.6 Bar
Temperature Range
-10°C to +120°C (depends on seat material)
Installation Orientation
Horizontal or Vertical (flow upwards only)
Coating
Fusion Bonded Epoxy / Red Oxide / Black Bitumen (as required)
Weight
Approx. 14 – 20 kg (may vary by manufacturer)
The Cast Iron Dual Plate Check Valve (Non-Return Valve) is a compact, wafer-type valve designed to allow unidirectional flow and automatically prevent backflow in pipelines. Built from high-quality cast iron, the 4" (100mm) valve features dual spring-loaded plates (discs) that close quickly to minimize pressure surges and water hammer. Ideal for water, HVAC, fire protection, and general industrial applications, it is suitable for both horizontal and vertical installations.
Technical Specifications:
Feature
Details
Valve Type
Dual Plate Check Valve / Non-Return Valve (NRV)
Nominal Size
4” (100mm)
Body Material
Cast Iron (CI) – IS 210 Gr. FG 200 / FG 260
Disc Material
Ductile Iron / Stainless Steel (AISI 304 / 316)
Shaft/Pin
Stainless Steel (AISI 410 / 304 / 316)
Seat Material
Nitrile Rubber / EPDM / Viton (optional)
Design Standard
API 594 / IS 5312
Face-to-Face Standard
Manufacturer Standard / ANSI B16.10
Flange Compatibility
Wafer Type – Fits between ANSI 150# / PN 10 / PN 16 flanges
Working Pressure
16 Bar (PN16)
Test Pressure
Body: 24 Bar, Seat: 17.6 Bar
Temperature Range
-10°C to +120°C (varies with seat material)
Installation Orientation
Horizontal or Vertical (upward flow only)
Coating
Fusion Bonded Epoxy / Red Oxide / Bitumen (as per spec)
End Connection
Wafer Type
Weight
Approx. 8 – 12 kg (depending on design)
The CI Dual Plate Check Valve (Non-Return Valve) is a robust, compact valve designed to prevent reverse flow in piping systems. Constructed from high-quality Cast Iron, the valve uses a dual spring-loaded disc mechanism for quick shutoff, minimizing water hammer and pressure surges. The 3" (80mm) size is ideal for medium-flow applications in water, fire fighting, HVAC, and industrial systems.
Technical Specifications:
Feature
Details
Valve Type
Dual Plate Check Valve / Non-Return Valve (NRV)
Size
3” (80mm)
Body Material
Cast Iron (CI) – IS 210 Gr. FG 200 / FG 260
Disc Material
Ductile Iron / Stainless Steel (AISI 304/316)
Shaft/Pin
Stainless Steel (AISI 410/304/316)
Seat Material
Nitrile Rubber / EPDM / Viton (as per application)
Design Standard
API 594 / IS 5312
Face-to-Face Dimension
As per ANSI B16.10 / Manufacturer Standard
Flange Standard
ANSI 150# / PN 10 / PN 16 (as per order)
Working Pressure
Up to 16 Bar
Test Pressure
Body: 24 Bar, Seat: 17.6 Bar
Temperature Range
-10°C to +120°C (depends on seat material)
Installation Orientation
Horizontal or Vertical (Flow Upwards Only)
Coating
Fusion Bonded Epoxy / Black Bitumen / Red Oxide
End Connection
Wafer Type – Fits between two flanges
Weight
Approx. 5 – 8 kg (may vary slightly by manufacturer)
Key Features:
Compact wafer-style design saves space and weight
Dual spring-loaded discs ensure quick shutoff and reduce water hammer
Maintenance-free design with long service life
Compatible with standard flanges for easy installation
Ideal for potable water, HVAC, fire fighting, and industrial pipelines
Corrosion-resistant coating for enhanced durabilityKey Features:
Dual spring-loaded discs for fast and silent closure
Compact wafer design saves space and weight
Reduces water hammer and surge effects
Corrosion-resistant coating for long service life in harsh conditions
Easy to install between standard flanges
Suitable for clean water, process fluids, fire fighting systems, and more
