DIN F4 German standard elastic seat sealed flange gate valve

What is Z45X DIN F4 elastic seat seal gate valve?

The Z45X DIN F4 flange gate valve adopts a ductile iron valve body and an elastic rubber coated gate plate, and the pipeline is opened and closed by lifting and lowering the gate plate. Soft sealed structures are commonly used in water supply, drainage, and some water treatment systems.

Current product parameters

The series uses a GGG40 body with PN10/PN16 options. Select the nominal size, mating flange and installation length together; nominal inch sizes should follow the selected dimensional standard.

What are the characteristics of elastic seat seals?

The elastic material coated gate can form a seal with the valve seat through material deformation, but the actual sealing performance depends on the rubber material, gate structure, processing quality, and testing requirements, and "absolute zero leakage" cannot be used as a unified commitment.

What are the characteristics of NRS concealed pole structure?

The concealed stem structure of the valve stem mainly moves inside the valve body or valve cover, which can reduce the required space above the valve and is suitable for some well chambers or height restricted situations. Whether it is the NRS version or not should be based on the actual product structure and order.

Do we need to confirm the rubber material?

Need. The adaptability of elastic materials such as EPDM and NBR to water, oil, temperature, and chemical media varies. The applicable scope of the medium cannot be determined solely based on the name of the "soft seal gate valve".

What parameters are required for selection?

The medium, temperature, and pressure should be confirmed DN、 Flange standards, valve body materials, encapsulation materials, exposed or concealed rod structures, installation positions, and project applicable standards.

Z45X DIN F4 Gate Valve Common Problems

Is the elastic seat sealed gate valve always completely leak free?

We cannot make absolute commitments without specific product testing and acceptance standards, and the sealing performance should be based on the actual valve test results and order requirements.

Are all DIN and F4 gate valves necessarily of the concealed rod NRS structure?

The form of the valve stem cannot be determined solely based on the length of the F4 structure. The actual visible or hidden stem structure should be confirmed based on the product model and drawings.

Can soft sealed gate valves be used for any oil or chemical medium?

No. Need to confirm the compatibility of the encapsulation material with the medium and temperature.