JIS 10K flange underground locking gate valve SCS13

What is SZ41W-10K underground locking gate valve?

SZ41W-10K is a gate valve that adopts the JIS 10K flange system and is equipped with a dedicated operating device for underground or well installation. By using a dedicated key, extended operating lever, or designated device for the project, the need for direct access to the valve handwheel during underground installation can be reduced.

Current product parameters

The current product specification is 15A-300A, with a pressure rating of JIS and 10K. Materials can be selected from SCS13, SCS14, or SCPH2. The actual dimensions of the valve internal structure, flange, and operating device shall be confirmed according to the product drawings and orders.

What is the function of underground locking structure?

Locking or dedicated operating structures can restrict unauthorized opening and closing, and facilitate operations from the well or ground. The length of the key, the height of the extension rod, and the connection structure should be determined based on the actual burial depth and the size of the well chamber, and it is not advisable to use a uniform fixed length.

What should be paid attention to when installing underground?

It is necessary to consider well drainage, corrosive environment, operating space, valve stem and operating stem position, pipeline support, and later maintenance conditions. Underground installation does not mean that valves can be submerged in water for a long time or do not require anti-corrosion measures.

How to choose materials?

The corrosion resistance and mechanical properties of SCS13, SCS14, and SCPH2 are different, and the selection of materials should be based on both the internal medium and the external underground environment.

What is required for selection?

We need to provide the medium, temperature, pressure, size, material, JIS flange requirements, burial depth or well chamber size, operating position, anti-corrosion requirements, and whether special locking or extension devices are required.

SZ41W-10K Underground Lock Gate Valve Common Problems

Is the length of the operating key for underground locking gate valves fixed?

No. The length of the operating device should be determined based on the well chamber or burial depth and the on-site operating position.

Can underground installed gate valves be immersed in stagnant water for a long time?

It cannot be directly determined in this way. The environmental suitability should be confirmed based on the anti-corrosion, operating mechanism, and well drainage design outside the valve door.

Do we need to provide burial depth for JIS10K underground gate valve selection?

Need. The burial depth or well chamber size can affect the length of the operating rod, key, and maintenance space design.