Check Valve Symbol Meaning Check Valve Structure Features Introduction
2024-04-10 07:06:04
The function of the check valve in the pump water supply system is to prevent the backflow of high pressure water from impacting the pump impeller. During the operation of the system, for some reason, when the pump suddenly stops operating, the pressure in the pump disappears, and the high-pressure water connected to the pump outlet will flow back to the pump in reverse. When the pump outlet is equipped with a check valve, it will immediately close to prevent high pressure water from flowing back to the pump. So, there are many kinds of check valve symbols . What does it mean? Let's learn about it together.
First, the use of check valve:
The check valve is installed in the piping system. Its main function is to prevent the back flow of the medium. The check valve is an automatic valve that opens and closes depending on the medium pressure. Wafer type check valve is suitable for nominal pressure PN1.0MPa~42.0MPa, Class150~25000; nominal diameter DN15~1200mm, NPS1/2~48; working temperature -196~540°C on various pipelines to prevent Media backflow. By selecting different materials, it can be applied to various media such as water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and uric acid.
Second, the check valve symbol represents what significance:
There are carbon steel, low temperature steel, dual phase steel (F51/F55), titanium alloy, aluminum bronze, INCONEL, SS304, SS304L, SS316, SS316L, chromium molybdenum steel, Monel (400/500), 20# alloy, Hastelloy and other metal materials. The use of clip type check valve and structural characteristics Standard and specification of clip type check valve:
1. Design and manufacturing: API594, API6D, JB/T8937, JB/T3595,
2. Structure length: API594, API6D, DIN3202, JB/T8937, ANSI/ASME B16.10
3, pressure, temperature rating: ANSI B16.34, DIN2401, GB/T9124, HG20604, HG20625, SH3406, JB/T74
4, test and inspection: API598, JB/T9092, GB/T13927
5, piping flange: JB/T74~90, GB/T9112-9124, HG20592~20635, SH3406, ANSI/ASME B 16.5, DIN2543-2548, GB/T13402, API605, ASMEB16.47
Third, the structural characteristics of the check valve:
1, the structure of a short length, the structure of the length of the traditional flange check valve 1/4 ~ 1/8
2, small size, light weight, its weight is only 1/4 to 1/20 of the traditional flange check valve
3, fast valve closure, water hammer pressure 4, horizontal pipe or vertical pipe can be used, easy installation 5, smooth flow channel, fluid resistance is small, 6 sensitive, good sealing performance 7, valve disc short stroke, close the shock Small force 8, simple and compact overall structure, beautiful appearance
9, long life, reliable performance Xiaobian conclusion: The above is Xiaobian on the check valve symbol and characteristics of a brief introduction, I hope friends interested in the check valve help. For more relevant knowledge, please continue to pay attention to this website information platform.
First, the use of check valve:
The check valve is installed in the piping system. Its main function is to prevent the back flow of the medium. The check valve is an automatic valve that opens and closes depending on the medium pressure. Wafer type check valve is suitable for nominal pressure PN1.0MPa~42.0MPa, Class150~25000; nominal diameter DN15~1200mm, NPS1/2~48; working temperature -196~540°C on various pipelines to prevent Media backflow. By selecting different materials, it can be applied to various media such as water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and uric acid.
Second, the check valve symbol represents what significance:
There are carbon steel, low temperature steel, dual phase steel (F51/F55), titanium alloy, aluminum bronze, INCONEL, SS304, SS304L, SS316, SS316L, chromium molybdenum steel, Monel (400/500), 20# alloy, Hastelloy and other metal materials. The use of clip type check valve and structural characteristics Standard and specification of clip type check valve:
1. Design and manufacturing: API594, API6D, JB/T8937, JB/T3595,
2. Structure length: API594, API6D, DIN3202, JB/T8937, ANSI/ASME B16.10
3, pressure, temperature rating: ANSI B16.34, DIN2401, GB/T9124, HG20604, HG20625, SH3406, JB/T74
4, test and inspection: API598, JB/T9092, GB/T13927
5, piping flange: JB/T74~90, GB/T9112-9124, HG20592~20635, SH3406, ANSI/ASME B 16.5, DIN2543-2548, GB/T13402, API605, ASMEB16.47
Third, the structural characteristics of the check valve:
1, the structure of a short length, the structure of the length of the traditional flange check valve 1/4 ~ 1/8
2, small size, light weight, its weight is only 1/4 to 1/20 of the traditional flange check valve
3, fast valve closure, water hammer pressure 4, horizontal pipe or vertical pipe can be used, easy installation 5, smooth flow channel, fluid resistance is small, 6 sensitive, good sealing performance 7, valve disc short stroke, close the shock Small force 8, simple and compact overall structure, beautiful appearance
9, long life, reliable performance Xiaobian conclusion: The above is Xiaobian on the check valve symbol and characteristics of a brief introduction, I hope friends interested in the check valve help. For more relevant knowledge, please continue to pay attention to this website information platform.
Kitchen flue check valve brick masonry structure
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