Self-sealing Blind Plates for Hydraulic Tests of Ultra-high Pressure Valves
- Aug 13, 2021
- Hits: 47
The working principle, structure, characteristics and applications of a self-sealing blind plate used in the process device of the ultra-high pressure valve hydraulic test bench are introduced...
Structural Characteristics and Applications of Metal Seated Triple Eccentric Ball Valves
- Jul 29, 2021
- Hits: 18
A metal seated triple eccentric ball valve is a new product, which is used in high-temperature, high-pressure and process media with more demanding conditions. 1. Structure of three kinds...
The Working Principle of the Safety Valve (Part Two)
- Jul 13, 2021
- Hits: 39
After the overpressure phase, the maximum relief pressure B is reached; return to the re-seat pressure C after the opening and closing pressure difference phase. The safety valve with liquid...
The Working Principle of the Safety Valve (Part One)
- Jun 25, 2021
- Hits: 134
A safety valve is a protection device for boilers, pressure vessels, and pressure pipelines. It is used to prevent the pressure in the pressure equipment from exceeding the designed allowable value, thereby...
Setting Pressure of Safety Valves
- Jun 10, 2021
- Hits: 501
Safety valves are important safety accessories for boilers, pressure vessels and other pressure equipment. Their operational reliability and performance are directly related to equipment and personal...
Technical Requirements for Valves Used for Pipelines
- May 21, 2021
- Hits: 49
The long-distance pipeline is global. It is an energy supply line from the Arctic Circle to the equator, from the mountains to the seabed, from the plateau to the desert, passing through seismic zones,...
Valves Used for Pipelines
- May 12, 2021
- Hits: 19
The pipeline has become the main method of energy transportation nowadays. The pipes and valves that emerged at the right moment have developed rapidly, which has greatly promoted...
How to Keep Newly Purchased Valves?
- Apr 23, 2021
- Hits: 23
Under normal circumstances, when the valve is shipped, blind plates are installed at the inlet and outlet of the valve to avoid dust entering from the inlet and outlet of the valve. This also prevents...
Maintenance of Valves in Operation
- Apr 05, 2021
- Hits: 32
The maintenance steps for valves that are in operation are as follows: 1. Cleaning A lot of dust, oil, and medium residues are easy to accumulate on surfaces of a valve, trapezoidal threads...
Ten misunderstandings of Installation of Valves
- Mar 19, 2021
- Hits: 23
Ten common misunderstandings about installation of valves that are easily overlooked are listed in this article, which are as follows: 1. The bolt are too long. For the bolts on the...
Welding Defects and Repair Welding of Valves
- Mar 08, 2021
- Hits: 441
Among the pressure-bearing valves of industrial pipelines, cast steel valves are widely used because of their economy and design flexibility. However, various casting defects such as sand...
Technical Requirements for Boilers Safety Valves
- Feb 24, 2021
- Hits: 143
Technical requirements for boilers safety valves are as follows: 1. At least one safety valve should be installed for boilers with a rated evaporation capacity lower than 0.5t/h; for boilers...