Non-return valve

A non-return valve, often referred to as a check valve, is an indispensable element in many industrial systems. It is installed directly between two flanges in a pipework and efficiently controls the liquid flow. Flow is only possible in one direction, while backflow is reliably prevented. This protects the system from damage caused by pressure surges or contamination.

High-quality non-return valves for every application

Our non-return valves are available in a variety of designs, including models with wafer, threaded or flanged connections. We offer a wide range of materials such as stainless steel, galvanised steel, grey cast iron, ductile iron and brass to meet your individual requirements. Our range includes sizes from DN8 to DN600. The right seal is crucial for the optimum function and longevity of a non-return valve. We therefore offer a wide range of seals made from materials such as metal, NBR, EPDM, FPM-VITON and PTFE. The choice of the right seal depends on factors such as temperature, medium and the specific requirements of your application. Our experienced engineers will be happy to advise you on the selection of the optimum seal for your project.

Non-return valve: Sealing materials for different industrial applications

Our swing check valves are designed for use in a wide range of industrial applications. Given the varying requirements in different industries, choosing the right seal is critical to ensure optimum performance and longevity of the swing check valves.

NBR (nitrile rubber) seals are ideal for applications where oils, greases and fuels are used. They offer excellent resistance to mineral oils and are suitable for temperatures from -30°C to +100°C. They are therefore particularly useful in the automotive and mechanical engineering industries.

EPDM (ethylene propylene diene rubber) gaskets offer excellent resistance to weathering, ozone and many chemicals. They are ideal for use in the water and waste water industry as well as in the food and beverage industry. With a temperature range of -40°C to +120°C, EPDM gaskets are versatile.

FPM-VITON gaskets (fluororubber) are characterised by their high resistance to high temperatures and aggressive chemicals. They are particularly suitable for use in the chemical industry and in applications with high temperatures, as they can withstand temperatures from -20°C to +200°C.

PTFE (polytetrafluoroethylene) gaskets offer excellent chemical resistance and are ideal for use in corrosive environments. They are resistant to almost all chemicals and have a temperature range of -200°C to +260°C. They are therefore particularly suitable for the chemical and pharmaceutical industries.

Metal gaskets are used when extremely high temperatures or pressures prevail. They offer excellent resistance and tightness in critical applications, such as in the petrochemical industry and in power stations. Translated with DeepL.com (free version)

Non-return valve

High-quality non-return valves for every application

Sub-Categories:

Flanged Check Valves Ball Check Valves Disco Check Valves Axial Check Valves

Foot Valves Double Check Valves Gestra Check Valves

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FAQ: Non-Return Check Valve

Non-return valve: Sealing materials for different industrial applications