Finished Threaded Flange
The flanges we process and produce are mainly used in petroleum and construction machinery and equipment industries. The materials used in processing are flexible and can be cast according to the shape and size provided by customers.
The production of flanges should go through a series of processes such as casting blank, rough cutting, fine turning, boring, drilling, heat treatment, quality inspection, etc. We process the flanges in different stages according to the requirements of customers. And we have API, ISO and other certificates recognized by american petroleum institute, and the quality can be guaranteed.
Our company independently designs dies and forges according to product specifications. Material types and weights can be made according to customer requirements. Our company also has rough machining, heat treatment and fine machining, which can be delivered according to the requirements of customers in different delivery states. About finish machining, we have more than 80 sets of different processing machinery and equipment, as well as ZEISS three-coordinate, Japanese small plate profilometer, gear tester, OmeGA tool counter and other inspection and testing equipment.
threaded flange refers to a kind of flange which is connected with pipe by thread. During design, loose flange can be used. The advantage is that no welding is required, and the additional torque generated to the cylinder or pipe when the flange is deformed is very small. The disadvantage is large flange thickness and high cost. It is applicable to the connection of high pressure pipes.
The threaded flange is a non welding flange, which processes the inner hole of the flange into pipe thread and connects it with the threaded pipe. Compared with flat welding flange or butt welding flange, threaded flange has the characteristics of convenient installation and maintenance, and can be used on some pipelines that are not allowed to be welded on site. Alloy steel flange has sufficient strength, but it is not easy to weld, or the welding performance is poor, and threaded flange can also be selected. However, when the pipe temperature changes rapidly or the temperature is higher than 260 ℃ but lower than - 45 ℃, it is recommended not to use threaded flanges to avoid leakage.
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