Improvements in the technology for the enhanced exploitation of oil and gas fields has increasingly required the use of long continuous lengths of stainless steel and nickel alloy tubulars for hydraulic control, instrumentation, chemical injection, umbilical and flowline control applications....
Lap joint flanges can be mainly divided into four types: loose plate steel pipe flanges with weld-on collar, loose plate steel pipe flanges with welding neck collar, lap joint flanges with welding neck collar and lap joint flanges with welding neck collar...
There are some perforations bolts can go through on large diameter carbon steel flanges, and the bolts can make two flanges tightly connected with each other. Flanges are sealed through the gaskets. When the sizes of large diameter carbon steel flanges need to be determined, the nominal diameter as ...
Wafer check valve is a universal one-way flow valve with light weight. It is easy to be installed between flanges. There are two semicircle spring fixed in the valve by pin. Spring deformation makes t...
There are many different kinds of valve body materials suitable for a variety of different working conditions. Commonly used body material has the following nine categories: 1. Gray cast iron. It is s...
For the metal hard sealing ball valve, wear resistance and sealing performance still need improvement. Hardening treatment of ball and valve seat surface: The special ball valve is mainly used in the...
It is the first obstacle to break for the future development of the valve industry in China to improve the level and grade of the valve products. The downturn of the entire valve industry leads to the...
Chinese steel pipe industry has made great progress in recent years, however, it still facing five major challenges. 1. Overcapacity led by repeat investment and construction. In recent two years, Ch...
Pipe cap, one of the indispensable pipe products, plays an important role in the pipeline, and it concludes high-pressure pipe cap, threaded cap, stainless steel cap and so on. Pipe cap i...
The world has entered into a rapid development period of economic globalization and the inevitable trend of economic globalization is international standard. Through the study of association of ISO ...
According to the needs of manufacturing process and pipeline installation, as well as the overall performance of various types of strainers, selection principles and note points of strainers can be ...
Elbow, flange, tee, cross, reducer, etc. all belong to pipe fittings, which widely used in building industry. Elbow is used at pipe turnings; flange is used to connect pipe at the end of pipe. Tee i...