The casting material is integrally cast in a mold, and its stress distribution is uniform. There is no restriction on the compression direction. The forging is pressed by the force in the same direction,...
In the production process of offshore and onshore natural gas treatment facilities, the valves used are basically high-temperature and high-pressure valves and their main functions are to control the...
In the forging process of valves, there will occasionally be defects such as gas holes, porosity, and impurities, which affect the normal use of the castings, and are usually repaired by welding....
The commonly used materials for valve bodies are as follows: 1. Gray cast iron: it is suitable for low-pressure valves with working temperatures between -15℃ and +200℃ and nominal pressure...
Opening and closing over set pressure means that the equipment is opened or closed over its set pressure. In this case, the overload protection function of the safety valve loses, and the reasons...
2. A new type of structural design of the ultra-low temperature floating ball valve Given that there are disadvantages for the current common floating ball valve structure, a...
Abstract: A new type of structural design plan of the ultra-low temperature floating ball valve was proposed based on the structural analysis of the existing common ultra-low temperature floating...
Plug Valve: An Isolation Valve Table of contents: 1. Non-Lubricated Plug Valve 2. Lubricated Plug Valve 3. Eccentric Plug Valve 4. Expanding Plug Valve A plug valve is a...
Because of the special structure of cryogenic valves, the installation of cryogenic valves also has special requirements. The direction of the valve stem must be within a vertical angle of 45 degrees...
In order to study the performance, rules of size changes at low temperatures, changes of microstructure, and cracking of surfacing layers of the valve body's material...
When choosing an industrial valve, you will face numerous choices. Available materials, proper size, and design (1, 2, or 3 pieces, end connections, etc.) are the key factors to decide which type of valve...
The sealing surface is the most critical working surface of the valve; the quality of sealing surfaces directly affects the service life of the valve; the material of the sealing surface is...