Threaded Check Valve – Versatile, Durable and Efficient

The threaded check valve RK104, made from robust brass, offers an excellent price-performance ratio and outstanding versatility in handling different media. Compared to a conventional check valve, the swing check valve has the significant advantage that the disc is not fully positioned in the media flow – unlike with a lift check valve. This design ensures minimal pressure loss, improving overall system efficiency. Another benefit: The swing check valve operates reliably even with slightly contaminated media, without risk of malfunction. This makes the RK104 suitable for a wide range of industrial applications – from water and air pipelines to certain chemical media.

FAQ Check valves

+ - What is a swing check valve?

A non-return valve is a valve that allows liquids or gases to flow in one direction and prevents them from flowing back in the opposite direction. It is often used in pipework systems to prevent backflow and possible contamination.

+ - What does FPM stand for and what applications does it have in non-return valves?

FPM (fluororubber, also known as Viton) is a favoured sealing material for demanding applications in non-return valves due to its high resistance to aggressive chemicals, high temperatures and various oils and fuels. It is frequently used in chemical and petrochemical plants, in the food and beverage industry and in the pharmaceutical industry.

+ - What is a double plate non-return valve?

A double plate check valve is a check valve with two semi-circular flaps that open to allow flow and close to prevent backflow. It offers low pressure loss and a fast closing response.

+ - Can a check valve be used in a gas system?

Yes, check valve or non-return valves can be used in both liquid and gas systems. However, it is important to ensure that the valve is suitable for the specific requirements of the gas system.

+ - Where are double-plate non-return dampers used?

These valves are often used in water and sewage systems, heating, ventilation and air conditioning (HVAC) systems, and in industrial processes where it is important to prevent the backflow of media.

+ - For which applications is NBR suitable as a sealing material in non-return valves?

NBR (nitrile butadiene rubber) is often used as a sealing material in non-return valves due to its resistance to oils, greases and various chemicals. It is ideal for applications in industrial plants, oil and gas pipelines and hydraulic systems.

+ - How does a double-plate non-return valve work?

The two plate open in the direction of flow due to the pressure of the flowing medium. In the event of backflow or pressure drop, they collapse and close the passage to prevent backflow.

+ - What advantages does EPDM offer as a sealing material in non-return valves?

EPDM (ethylene propylene diene rubber) is a popular sealing material for non-return valves due to its excellent resistance to UV radiation, ozone and various chemicals. It is particularly suitable for applications in the field of water supply, heating and cooling systems as well as for sanitary installations.

+ - How do I choose the right sealing material for my check valve?

Choosing the right sealing material for your swing check valve depends on several factors, including the type of liquid or gas, temperature and pressure conditions, chemical resistance and environmental factors such as UV radiation and ozone exposure. A specialist or the manufacturer can help you select the appropriate sealing material based on your specific requirements.

+ - How do I choose the right sealing material for my non-return valve?

+ - What materials are used for check valve flaps?

Non-return valves are manufactured from various materials, including stainless steel, galvanised steel, brass and plastic. The choice of material depends on the application and the requirements for corrosion resistance and durability.

Threaded Check Valve – Versatile, Durable and Efficient

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