Noreva check valves 

The Noreva check valves are installed wherever a backflow of liquids or gases is not desirable. Examples include pipelines for oil, steel plants, chemical companies, applications for water distribution, power plants and gas compressor stations. Noreva check valves are suitable for all types of liquids.

Energy-saving and maintenance-free

The main advantage of Noreva non-return valves is that they save energy (due to low pressure losses) and maintenance-free installation due to the total absence of plastic seals. The valves can then sometimes continue to function perfectly unopened for decades.

Good dynamic behavior

An important property of the Noreva check valve is the good dynamic behavior of the valves. A quick closure ensures the absence of the dreaded water or hammer blow, this phenomenon can cause a lot of damage.

Full and ring-shaped dishes

The main distinction between the Noreva check valves is the working principle of the valve itself. Noreva non-return valves are a full disc with a diameter up to DN250. These are the types ZO, ZL, ZB, ZD, ZS. Noreva valves from diameter DN250 have an annular disc. These are the types NB, ND, NK, NG .

About the water sector

The types ZO, ZL and NG are especially important for the water sector. They are standard valves that have been used in the drinking water sector in the Netherlands for more than 25 years. The Noreva non-return valves, which are intended for drinking water, are provided on the inside with Epimid coating with Kiwa certificate (on request) and on the outside Noreva's standard coating EKB RAL 5015 is applied. Other color scheme on request. The Epimid can be applied by a Kiwa certified applicator.

Downloads:
Brochure Noreva