Non Return Valve

M3NRV160

Designed to be installed on the toilet system to stop back surge of sewage entering the property.

Non Return Valve

M3NRV160

Designed to be installed on the toilet system to stop back surge of sewage entering the property.

The 160mm/110mm Non-Return Valve is the UK’s only adaptable non-return valve that gives the benefit of passive protection due to the integral self-activating flap powered by the flood water.

Size: 

160 / 110mm

Stock: In Stock

£200.00

  • Flexible collars included for adapting 160mm/110mm drainage
  • Fully rod-able / jet-able and quick to clear in the event of blockage
  • Low maintenance
  • Can be installed in main-drain or branch
  • Normal always-open position allows unrestricted free flow
Non Return Valve Key Points
  • Flexible collars included for adapting 160mm/110mm drainage
  • Fully rod-able / jet-able and quick to clear in the event of blockage
  • Low maintenance
  • Can be installed in main-drain or branch
  • Normal always-open position allows unrestricted free flow

Technical Information

Applications
  • Protects properties against sewage and wastewater backflow
  • May be installed in main drain or at branch
  • Commercial property protection
  • Suitable for clean or foul water
Certifications / Standards
  • Product fulfils the requirements of European Standards EN 13564-1:2002.
  • Tested to and complies with PAS 1188-1:2009 (Tested under witness conditions)
Technical Information
  • Height: 260mm
  • Width: 330mm
  • Length: 600mm
  • Weight: 5 Kg
  • Connections: 160mm / 110mm
Materials
  • Body, lid, gate: Acrylonitrile Butadiene Styrene (ABS)
  • Lid: Polycarbonate
  • Lid Bolts: Stainless steel
  • Gate Seal: Silicone seal
  • Lid Gasket: Silicone seal
  • Gate Floats: Closed cell polyethylene

How It Works

/assets/img/crunched/nrv-how-it-works-01.svg
/assets/img/crunched/nrv-how-it-works-02.svg
Non Return Valve -

Flap remains open for normal flow.

Non Return Valve -

Automatically closes when water levels rise, preventing any backflow.

Non Return Valve Downloads

BSI Flood Protection Kitemark KM713574
ISO 9001 Quality Management
Constructionline
Hereford & Worcestershire Chamber of Commerce
bimstore
Parlimentary Review
Site by Kingsford

Flood Checker