Shut-off valve PRESS - concealed, 20 x 20, 512075

Product detailed description

Concealed shut-off valves are essential components in modern plumbing and heating systems, particularly in residential and commercial buildings where space efficiency and aesthetics are important. These valves are commonly installed in walls or under floors, allowing for compact system layouts without compromising accessibility for maintenance. They are used in domestic hot and cold water distribution systems, as well as in heating circuits, where they provide reliable isolation of pipe sections for servicing or repairs. The integration of concealed valves requires precise planning and installation to ensure they remain accessible for future operations.

When installing concealed valves, it is important to consider the thickness of the wall or floor cavity and the accessibility of the valve for future servicing. The valve must be positioned in such a way that it can be reached without major structural modifications. The compact design of this model allows it to be embedded in standard wall or floor cavities, making it suitable for concealed installation in both new builds and renovations.

Technical parameters

Installation and connection

This valve is designed for press-fit connection to ALPEX pipes of equal diameter. The installation process involves inserting the pipe into the valve body and using a press tool to secure the connection. The connection size is 20 x 20 mm, and the press-fit method ensures a leak-tight seal without the need for additional sealing materials. During installation, it is important to ensure that the pipe is clean and free from burrs before pressing. A common mistake is applying uneven pressure during the pressing operation, which can lead to a weak or failed connection. The valve must be positioned in a way that allows for future access and inspection.

Compatibility and accessories

This valve is specifically designed for use with ALPEX pipes and is compatible with press-fit tools and sleeves of type B-F-TH. The EPDM sealing material ensures compatibility with potable water and heating fluids. For concealed installation, it is important to ensure that the surrounding structure allows for sufficient access. No additional accessories are required for standard installation, but press tools and sleeves should be verified for compatibility with the valve model.

Technical background for designers

The operating principle of this valve is based on a simple on/off function, where the valve body allows or restricts the flow of fluid through the pipe. The nickel-plated brass body (CW617N) provides corrosion resistance and durability in both hot and cold water systems. The stainless steel sleeve and EPDM sealing material contribute to the valve's long service life and reliability. The integration of the valve into the system depends on the correct selection of pipe diameter and press-fit method. The service life and efficiency of the valve are influenced by the quality of the installation, the operating conditions, and the compatibility of the materials used in the system.

Service and operation

Regular inspection of the valve is recommended to ensure that the connection remains secure and leak-free. No scheduled maintenance is required for this model, but any signs of leakage or operational issues should be addressed immediately. During operation, the valve should be operated smoothly to avoid excessive force that could damage the internal components. If the valve is to be removed or replaced, it is important to follow the correct procedure to avoid damaging the surrounding structure or the pipe system.

Frequently asked questions

Can this valve be used in hot water systems?
Yes, the valve is suitable for hot water systems with a maximum operating temperature of +120°C.

Is the valve compatible with press-fit tools of type B-F-TH?
Yes, the valve is designed to be used with press-fit tools and sleeves of type B-F-TH.

What is the maximum operating pressure for this valve?
The valve has a nominal pressure rating of PN 10, which means it is suitable for systems operating at up to 10 bar pressure.

Can the valve be installed in a wall cavity?
Yes, the compact design allows for concealed installation in wall or floor cavities, provided there is sufficient access for future servicing.