Plastic cap usage

Plastic caps have different classification standards in use, use and promotion in accordance with a certain method and method, display important functions and values, and can bring certain convenience and value to users.
Plastic pipe caps can be divided into five basic types according to the connection with the pipe: flat welding flange, butt welding flange, threaded flange, socket welding flange, loose flange. There are several kinds of flange sealing surface types, usually convex surface, concave surface, concave surface, concave surface, full surface, and ring connection surface.
Plastic Cap: Suitable for connection of carbon steel pipe with nominal pressure not exceeding 2.5MPa. The sealing surface of the flat welded flange can be made into three types: smooth, concave and convex, and tongue and groove. Smooth type flat welding flange has a large amount of application. It is mostly used in the case of medium conditions, such as low-pressure non-purified compressed air and low-pressure circulating water. Its advantage is that the price is relatively cheap.
Different types of flanges have different use values ​​and functions in use, and are used in a correct manner and principle to ensure good quality inspection during use.
Plastic pipe caps: For the welding of flanges and pipes, the structure is reasonable, the strength and rigidity are large, can withstand high temperature and high pressure and repeated bending and temperature fluctuations, reliable sealing, butt welding with nominal pressure of 0.25 ~ 2.5MPa Flange with concave and convex sealing surface.