The MS Wafer Type NRV (Non-Return Valve) DN 150 is a swing-type non-return valve designed for preventing backflow in fluid systems. Its wafer-style body enables installation between two standard flanges without the need for extensive space or extra fittings.
This model features a Mild Steel (MS) body for structural integrity, a Ductile Iron (DI) disc with Nickel Plating (NI) for corrosion resistance, and a Stainless Steel (SS) stem, ensuring reliable and long-lasting operation in various industrial and fire protection systems.
📐 Specifications:
| Parameter |
Details |
| Product |
Wafer Type Non-Return Valve (NRV) |
| Type |
Swing Type |
| Nominal Size |
DN 150 (6”) |
| Body Material |
Mild Steel (MS) |
| Disc Material |
Ductile Iron (DI) with Nickel Plating (NI) |
| Stem Material |
Stainless Steel (SS), typically SS304 |
| End Connection |
Wafer Type – To be mounted between flanges |
| Compatible Flanges |
IS, ANSI, or DIN (typically PN16 unless specified otherwise) |
| Working Pressure |
Up to PN 16 (16 bar) |
| Face-to-Face |
Compact wafer design |
| Flow Direction |
Unidirectional – Horizontal or vertical (upward flow) |
| Backflow Prevention |
Swing disc closes automatically with reverse flow |
| Coating |
Epoxy-coated externally for rust prevention |
| Application |
Water lines, fire mains, HVAC, industrial fluid systems |
he MS Wafer Type NRV (Non-Return Valve) is a compact, lightweight, and efficient valve designed to allow flow in one direction and prevent backflow in pipelines. This model, with a DN 80 (3") nominal bore, is ideal for applications in water, HVAC, fire protection, and general industrial systems.
The disc is made of Ductile Iron (DI) with Nickel Plating (NI) for corrosion resistance and durability, while the stem is constructed from Stainless Steel (SS) for strength and wear resistance. The wafer design allows easy installation between flanges, saving space and weight compared to flanged types.
📐 Specifications:
| Parameter |
Details |
| Product |
Wafer Type Non-Return Valve (NRV) |
| Type |
Wafer Pattern, Swing Type |
| Nominal Size |
DN 80 (3”) |
| Body Material |
Mild Steel (MS) |
| Disc Material |
Ductile Iron (DI) with Nickel Plating (NI) |
| Stem Material |
Stainless Steel (SS) – Grade SS304 or higher |
| End Connection |
Wafer Type – Fits between flanges |
| Flange Compatibility |
Suitable for ANSI, DIN, or IS flanges (based on design) |
| Working Pressure |
Up to PN 16 (16 bar) |
| Design Standard |
As per IS / BS / API standards (manufacturer-specific) |
| Installation Position |
Horizontal / Vertical (depending on flow direction) |
| Backflow Prevention |
Swing-type disc ensures tight shutoff against reverse flow |
| Applications |
Water Supply, Firefighting, HVAC, Industrial Pipelines |
| Coating |
External epoxy or enamel painted for corrosion protection |
The MS Wafer Type NRV (Non-Return Valve) DN 150 is a swing-type non-return valve designed for preventing backflow in fluid systems. Its wafer-style body enables installation between two standard flanges without the need for extensive space or extra fittings.
This model features a Mild Steel (MS) body for structural integrity, a Ductile Iron (DI) disc with Nickel Plating (NI) for corrosion resistance, and a Stainless Steel (SS) stem, ensuring reliable and long-lasting operation in various industrial and fire protection systems.
📐 Specifications:
| Parameter |
Details |
| Product |
Wafer Type Non-Return Valve (NRV) |
| Type |
Swing Type |
| Nominal Size |
DN 150 (6”) |
| Body Material |
Mild Steel (MS) |
| Disc Material |
Ductile Iron (DI) with Nickel Plating (NI) |
| Stem Material |
Stainless Steel (SS), typically SS304 |
| End Connection |
Wafer Type – To be mounted between flanges |
| Compatible Flanges |
IS, ANSI, or DIN (typically PN16 unless specified otherwise) |
| Working Pressure |
Up to PN 16 (16 bar) |
| Face-to-Face |
Compact wafer design |
| Flow Direction |
Unidirectional – Horizontal or vertical (upward flow) |
| Backflow Prevention |
Swing disc closes automatically with reverse flow |
| Coating |
Epoxy-coated externally for rust prevention |
| Application |
Water lines, fire mains, HVAC, industrial fluid systems |
he MS Wafer Type NRV (Non-Return Valve) is a compact, lightweight, and efficient valve designed to allow flow in one direction and prevent backflow in pipelines. This model, with a DN 80 (3") nominal bore, is ideal for applications in water, HVAC, fire protection, and general industrial systems.
The disc is made of Ductile Iron (DI) with Nickel Plating (NI) for corrosion resistance and durability, while the stem is constructed from Stainless Steel (SS) for strength and wear resistance. The wafer design allows easy installation between flanges, saving space and weight compared to flanged types.
📐 Specifications:
| Parameter |
Details |
| Product |
Wafer Type Non-Return Valve (NRV) |
| Type |
Wafer Pattern, Swing Type |
| Nominal Size |
DN 80 (3”) |
| Body Material |
Mild Steel (MS) |
| Disc Material |
Ductile Iron (DI) with Nickel Plating (NI) |
| Stem Material |
Stainless Steel (SS) – Grade SS304 or higher |
| End Connection |
Wafer Type – Fits between flanges |
| Flange Compatibility |
Suitable for ANSI, DIN, or IS flanges (based on design) |
| Working Pressure |
Up to PN 16 (16 bar) |
| Design Standard |
As per IS / BS / API standards (manufacturer-specific) |
| Installation Position |
Horizontal / Vertical (depending on flow direction) |
| Backflow Prevention |
Swing-type disc ensures tight shutoff against reverse flow |
| Applications |
Water Supply, Firefighting, HVAC, Industrial Pipelines |
| Coating |
External epoxy or enamel painted for corrosion protection |
