Hot and Cold Performance Tests of Valves (Part Two)
- Nov 23, 2023
- Hits: 156
3.1.2 Cold sealing performance tests The sealing performance test of the valve is generally divided into high-pressure sealing and low-pressure sealing performance tests. The test pressure of the high-pressure...
Hot and Cold Performance Tests of Valves (Part One)
- Nov 16, 2023
- Hits: 289
Abstract: valves usually need to work under high temperature and high pressure in many industrial fields such as petroleum, chemical industry, and nuclear power. Testing the performance of valves by simulating...
Valves Processed by Diamond Special Spraying
- Oct 23, 2023
- Hits: 34
Diamond super wear-resistant ball valves are used in harsh working conditions in polysilicon, coal chemical, petrochemical and other industries, such as high temperature, high pressure, high flow rate...
Alloy Spraying of Valve Sealing Surfaces
- Oct 16, 2023
- Hits: 19
The process flow of alloy spraying of valve sealing surfaces mainly includes four steps: preparation before spray welding of valves, surface pretreatment, spray welding of valves, and post-processing...
Repairing Sealing Surfaces of Marine Globe Valves
- Sep 07, 2023
- Hits: 64
Combined with the work practice on board, aiming at the damage to the sealing surface of the boiler feedwater globe check valve, the method of grinding the sealing surface to repair the glove valve is...
Globe Valves
- Aug 25, 2023
- Hits: 15
Globe valves are a type of valve commonly used in various industries to control the flow of fluids. They have been around for centuries and continue to be an essential component in many systems today....
Design of High-temperature and High-pressure Oxygen Globe Valves
- Aug 07, 2023
- Hits: 81
The material selection, structural features and working principle of the globe valve for high-temperature and high-pressure oxygen are introduced, and the methods of being anti-static, dust-proof and...
Manufacturing Processes of High-temperature & High-pressure Hydrogen Valves
- Jun 24, 2023
- Hits: 28
The high-temperature and high-pressure hydrogenation valve is an important pipeline component of the hydrogenation system in the petrochemical industry. The pressure level is above ANSI CL900, and the...
Detection of Leakages of Valves
- Jun 07, 2023
- Hits: 14
Compared with other industries, there is serious environmental pollution in the chemical industry and the petroleum industry, so relevant departments and personnel must pay more attention to them. At...
Leakages of Valves
- May 24, 2023
- Hits: 31
Valves play an indispensable key role in oil and gas storage and transportation. Valve leakage is one of the common problems to be seen. If measures cannot be taken as soon as possible to deal with the...
Nuclear Safety Valves
- May 14, 2023
- Hits: 75
There are three main types of nuclear safety valves, namely bellows sealed spring safety valves, fully opened spring safety valves with actuators and pilot safety valves with detectors. Although the amount...
Nuclear Power Gate Valves
- Apr 30, 2023
- Hits: 48
There are mainly four structures for the nuclear grade gate valve, wedge elastic single plate gate valves, wedge double plate gate valves, parallel double plate gate valves with spring preload and parallel...