STOP RATS 110mm Non Return Valve for Gradient installation


Our 110mm non return valves are designed by Mark Burnett the founder of sewerstore and made in the United Kingdom. Our valves are built in house and the saving is passed onto the consumer. We sell direct to Pest Controllers and Consumers and offer a full 5 year warranty.


110mm Non Return Valve Rat Flap For Use In Drains And Sewers!

We also manufacturer a fully stainless steel Rat flap 110mm non return valve which is the main version we install as a pest control company the link is below.

110mm Non Return Valve Fully Stainless

We also produce a 6″ non return valve for use in sewers please click here6 inch non return valve Rat Sewer Flap Drain Protection

  • Stops Rats chewing through plastic flexible pan connector pipes at the back of toilets
  • Installed in 110mm sewage pipes before they exit a building or sewage drains
  • Prevents against rodents entering building interiors through the sewage and other sanitary systems
  • Secure the whole building against rats entering the building via the sewer network
  • Made of high-quality PVC Plastic – resistance to the effects of chemicals and hot sewage

Our valves are push fit and should be installed in the sewer chamber, we have used them successfully inline and reverse fitted them.

The main difference between this 110mm non return valve and the other valves is that it has a rubber seal around the body.

It slightly extends beyond the outlet rather than the ratblocker which is fully inserted into the outlet.

If you are looking at this Non Return Waste Valve it is likely you unfortunately have a rodent problem.

luckily we can provide you with our 110mm non return valve which is a cost effective solution.

Firstly we are a pest control company based in Swindon Wiltshire and have decided to develop our own range of 110mm non return valve as other Drainage Non Return Valves on the market were simply not up-to the task.

We have tried and tested our products in real situations and have resolved customer problems where other products have failed.

The main difference with our valves compared to others is that they are fully stainless steel.

Plastic versions are on the market but they get damaged by rats causing them to fail

Also on the market are steel flaps but they use internal hinges and in our opinion waste such as tissue paper etc can get caught on the hinge and potentially cause a blockage.

Our 110mm non return valve are welded using stainless weld and stainless hinge meaning there is nothing within the body for waste to foul on.

We offer three variations these are Flood defence valve, Rodent Flap Valve Without Cable and Rodent Flap Valve With Cable.

Our valves are built using 316L stainless steel body, hinges and flap.

Please visit our main website for further images of our products.

All valves are shipped with instructions on how to fit and you can email or call us if you have any questions.

If you would like to clarify that our valves will fit your sewer please email us a picture and we would be happy to assist.

The product can be installed by anybody who has a small amount of DIY experience but if in doubt please contact a Plumber, Pest Controller or Drain specialist.

Please remember that when working in sewers and installing or 110mm non return valve please wear protective clothing including eye protection and protective gloves due to the risk of disease.

If you are looking for our Anti Flood Valves please visit https//