Stainless Steel Globe Valve Material Introduction And Characteristics
The stainless steel globe valve is a kind of globe valve. The detailed stainless steel materials are CF8 (304), CF3 (304L), CF8M (316), CF3M (316L). Different materials are used, which can be applied to water, steam, and oil products. , Nitric acid, acetic acid, oxidizing media, urea and other media.
Stainless steel globe valves are divided into manual stainless steel globe valves, pneumatic stainless steel globe valves, and electric stainless steel globe valves. The connection methods are general globe valve threaded stainless steel globe valve, angle stainless steel globe valve, three-way stainless steel globe valve, DC type stainless steel globe valve, thermal insulation stainless steel globe valve, etc. The most significant advantages are: Because the friction force between the disc and the sealing surface of the valve body is smaller than that of the gate valve, it is wear-resistant.
Stainless steel globe valve holding point:
The structure is simpler than the gate valve, and it is more convenient to manufacture and repair.
The sealing surface is not easy to be worn and scratched, and has good sealing performance. There is no relative sliding between the valve flap and the sealing surface of the valve body when opening and closing, so the wear and scratch are not serious, the sealing performance is good, and the service life is long.
When opening and closing, the flap travel is small, so the height of the shut-off valve is smaller than that of the gate valve, but the structural length is longer than the gate valve.
The opening and closing moments are large, and the opening and closing are laborious. The headmaster at the time of opening and closing.
The fluid resistance is large, because the medium channel in the valve body is tortuous, the fluid resistance is large, and the power consumption is large.
When the nominal pressure PN ≤ 16MPa in the direction of media movement, generally use downstream flow, the medium flows upward from the bottom of the valve flap; when the nominal pressure PN ≥ 20MPa, generally use counter flow, the medium flows downward from the top of the flap. To increase the sealing capacity. When in use, the shut-off valve medium can only move in one direction and cannot change the direction of movement.
The valve flap is often eroded when fully opened.
As an indispensable part of the valve industry, the globe valve plays an important role in the development of China's industry. The stainless steel globe valve has been continuously improved since the beginning of the liberation period. Today, the production mode is continuously improved, but it faces the foreign WJ41H bellows. Valves are still far away, and foreign products are powerfully seized in China's valve shopping malls. Because people's products are indeed excellent, China's stainless steel globe valve industry is facing a serious market crisis. The crisis greatly stimulates domestic globe valve manufacturers and promotes the formation of a In the contested competition mode, enterprises need to step up the pace of independent research and development, actively open new shopping malls, expand business channels, and lay a solid foundation for China's valve profession to go out