What are the connection methods of check valve body

The connection approach of the test valve refers to the relationship technique between the valve frame and the pipeline gadget. On the only hand, this influences the set up, preservation and alternative of the take a look at check valve. On the other hand, it also has an essential effect at the sealing and balance of the system. .

Flange connection

Flange type

The valve frame and piping machine of the take a look at valve are usually related through flanges. Flange connection is a common and standardized connection technique. There are many types, including flat flange, butt welding flange, threaded flange, and so forth. Different types of flanges are suitable for unique pressure tiers and operating conditions.

Flange trendy

Flange connections generally observe worldwide requirements, including ANSI (American National Standards Institute), DIN (German Industrial Standards), and so on., to make sure interchangeability and compatibility among flanges. The use of general flanges simplifies the manufacturing, installation and preservation of device.

Flange seal

The sealing of flange connections is generally performed by a gasket or sealing ring between the flange surfaces. Selecting the appropriate sealing material is important to ensure the sealing overall performance of the flange connection to save you media leakage.

Threaded connection

Internal and external threads

Threaded connection is a simple connection method normally used for smaller diameter take a look at valves. The mixture of inner threads and outside threads is common. The internal threads are at the valve frame and the external threads are at the pipe. This connection technique is appropriate for low strain situations, however there may be sealing overall performance demanding situations below high strain conditions.

Sealed media

In threaded connections, additionally it is necessary to apply thread sealant or media for sealing to make certain the tightness of the relationship. Threaded connections are characterised through easy installation and disassembly, but there are sure boundaries in their use underneath high stress, high temperature, and strongly corrosive media.

Solder connection

butt welding

Butt welding is a connection method wherein the body of the take a look at valve is directly welded to the pipes of the piping system. This connection technique is suitable for high stress and high temperature situations and has precise sealing and structural strength. The downside of butt welding is that after linked, it's far hard to disassemble and calls for standard replacement.

Welding technique

For welded connections, the selection of welding procedure is also a important step. Common welding techniques consist of arc welding, gas welding, TIG welding, and so forth. Correct welding procedure guarantees the connection is strong, tight and corrosion-resistant.

Splice connection

splicing kind

The spliced connection is a way to connect the valve body and the pipe via threading and twisting. This connection approach is suitable for a few special running conditions, which include conditions where the valve frame desires to be replaced often or the connection position needs to be adjusted.

Splice layout

The design of the spliced connection desires to make certain the tightness of the relationship to keep away from loosening at some stage in work. Choosing the ideal splicing structure and substances is essential to the reliability of the relationship.