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Non-Return Valve NRV

Non-Return Valve NRV

Fernco’s Non-return valves allow sewer or surface water materials to freely flow in the direction of the systems mains but block backflow of those materials in the opposite direction in instances, such as, flooding.

  • Unobtrusive to natural flow
  • A proven flood prevention method
  • Helps to protect homes, properties, commercial buildings, roads etc
  • Also suitable as rodent deterrents with rat block features
  • Maintenance free

    SKU: non-return-valves Category:

    Product Information

    Fernco’s range of retrofit Non-Return Valves (NRVs) can be installed directly into existing manholes by simply pushing the NRV into the desired pipe inlet. The product prevents foul water flowing back from the blocked sewerage systems to flood the property from the inside via toilets, plug holes and waste pipes.

    Non-Return Valve in clay pipe chamber

    The Retrofit NRVs can be fitted in minutes and do not require any specialist expertise or equipment.

    Users also benefit from protection against rodent infestation. The stainless steel reinforced flap helps to block rats and other rodents and insects from travelling up pipes and into homes and commercial buildings.

    NRV100

    NRV150

    Fits in old or new chambers

    NRV in older chamber with water flow
    NRV in new chamber with water flow

    Can fully open even when there are tight bends or benching

    NRV opening with tight benching

    Here are some of the benefits:

    • Simple push-fit installation into existing manhole
    • Unobtrusive when installed
    • Two sizes available to suit DN100 and DN150 pipes
    • Universal for all pipe materials within the products size range
    • Protects against back flow and pests, such as rats and other rodents
    • Stainless steel reinforced flap for added protection against rodent infestation
    • NRV100 WRc Approved

    Downloads

    Data Sheet – Non-Return Valves

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