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Home Products Water Supply NR-020 | Wafer Style Check Valve


NR-020 | Wafer Style Check Valve

PN 16 - DN 80 - 200

Description

The NR-020 check valve is compatible for installation in horizontal pumps or boosters to prevent the return flow of water to its source and to provide quiet closing and total sealing of the sealing face.

Product Features

  • Valve allows for one-directional flow and prevents the return flow of the liquid to its source.
  • Valve provides for quiet closure and total sealing of the sealing face.
  • Valve is designed for free flow of water without interference and minimal head loss.
  • Valve supplied with seals for flange to flange installation.
  • Spring assembly mechanism is outside of the flow cross-section and can be replaced without removing the valve from the line.
  • Available in sizes 80mm – 200mm (3" -8").

Materials and Corrosion Protection

  • The 3”-6” models are made from composite materials, resistant to highly abrasive conditions and durable in environments using corrosive liquids such as sea water, brine and chlorine.
  • The 8" model is made from an anodized aluminum alloy. Use in corrosive liquid environments such as sea water, brine and chlorine, require an additional modification to the check valve and needs to be specified.
  • Metal parts are made from SAE 304 stainless steel (SAE 316 stainless steel is also available upon request).

Application Range

  • Working pressure range: 16 bar.
  • Maximum operating temperature: 60°C.
  • Maximum intermittent temperature: 90° C.
  • For use after pumps and boosters, lateral pivots, filtration systems, swimming pools (for 8" models, additional modificiations are required for this application) and as foot check valve for pumping from ponds.


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