Non Return Valves

Non Return Valves from Drainage Online are manufactured by Hunter and are a simple and effective device for reducing the risk of flood damage which can be caused by surface water flowback through the underground drainage channel. Install within an access point between the facility to be protected and the main sewer, any flowback will automatically shut the valve.

In pumped drainage systems, for example, where effluent water is being pumped from a basement, the non return valve will help protect the system in the event of a power failure. Integral closing handle allows valve to be shut manually for easy system maintenance or cleaning.

Price Options

Code Description Brand Price Qty  
110MM DS342 (DS342) 110MM Hunter £94.78 inc VAT
£78.98 ex VAT
160MM DS442 (DS442) 160MM Hunter £163.70 inc VAT
£136.42 ex VAT

Technical Information

Manufacturer:  Hunter
Product Code:  DS442
Accreditation: Document H1 approved
Material: PVC 

Delivery Information

Some products have extended delivery times, and depending on the manufacturer delivery fees may vary. All delivery charges and lead times are highlighted in the individual product sections.

Feel free to contact us on 01354 700853 if you have any specific delivery issues.

If you are considering a return, please visit our Return Policy.