|Design standard||GB/T 12237、API 608、BS 5351|
|Connection standard||ASME B16.5、GB/T 9113、JB/T 79、HG/T 20592、HG/T 20615|
|Structural length||GB/T 12221、ASME B16.10|
|Pressure test||GB/T 13927、API 598、GB/T 26480|
|Pressure temperature rating||ASME B16.34、GB/T 12224|
1, the fluid resistance is small, and its resistance coefficient is the same length as the pipe section.
2, simple structure, small size, light weight.
3, close and reliable, at present, ball valve sealing surface materials widely used plastic, good sealing, vacuum system has also been widely used.
4, convenient operation, open and close rapidly, from fully open to fully closed as long as 90 degree rotation, facilitate remote control.
5, maintenance is convenient, pneumatic ball valve structure is simple, the sealing ring is generally active, disassembly and replacement are more convenient.
6, in full open or full closed, the ball and valve seat sealing surface and dielectric isolation, the media through, it will not cause the valve sealing surface erosion.
7, a wide range of applications, from small diameter to a few millimeters, large to several meters, from high vacuum, high pressure can be applied.
8, pneumatic ash discharge valve structure features, with pulverized coal injection valve is to control dust containing gas, particles, liquid, powder and other media ideal equipment, mainly applicable to blast furnace dust removal and ash discharge system.
[Valve structure drawing]
The valve is an important executive mechanism of industrial automation control system, remote centralized control can meet the needs of computer program; now widely used in petroleum, chemical industry, gas equipment, nuclear power equipment, water treatment, air conditioning, iron and steel metallurgy, industrial furnace, tank equipment, brewing equipment, drying equipment, vacuum equipment, surface treatment, bio pharmaceutical, food machinery, textile, papermaking and other industries, the preferred product is construction of national defense construction, science and technology.