First, the use of the wafer check valve
Check valve installed in the pipeline system, its main role is to prevent media flow back, check valve is a kind of media pressure open and close automatically. Wafer check valve is suitable for nominal pressure PN1.0MPa~42.0MPa, Class150~25000, nominal diameter DN15~1200mm, NPS1/2~48, working temperature -196~540℃ of all kinds of pipeline, used to prevent media backflow. Through the selection of different materials, can be used in water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and uric acid and other media.
Check valve installed in the pipeline system, its main role is to prevent media flow back, check valve is a kind of media pressure open and close automatically. Wafer check valve is suitable for nominal pressure PN1.0MPa~42.0MPa, Class150~25000, nominal diameter DN15~1200mm, NPS1/2~48, working temperature -196~540℃ of all kinds of pipeline, used to prevent media backflow. Through the selection of different materials, can be used in water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and uric acid and other media.
Two, the main material of the wafer check valve
There are carbon steel, low temperature steel, dual-phase steel (F51/F55), titanium alloy, aluminum bronze, INCONEL (INCONEL), SS304, SS304L, SS316, SS316L, chromium-molybdenum steel, Monel (400/500), 20# alloy, Hastelloy alloy and other metal materials.
There are carbon steel, low temperature steel, dual-phase steel (F51/F55), titanium alloy, aluminum bronze, INCONEL (INCONEL), SS304, SS304L, SS316, SS316L, chromium-molybdenum steel, Monel (400/500), 20# alloy, Hastelloy alloy and other metal materials.
Standards and specifications for wafer check valves
1, design and manufacture: API594, API6D, JB/T8937
2, structure length: API594, API6D, DIN3202, JB/T8937
3, pressure, temperature grade: ANSI B16.34, DIN2401, GB/T9124, HG20604, HG20625, SH3406, JB/T74
4, test and inspection: API598, JB/T9092
5, piping flange: JB/ T74-90, GB/T9112-9124, HG20592-20635, SH3406, ANSI B 16.5, DIN2543-2548, GB/T13402, API605, ASMEB16.47
1, design and manufacture: API594, API6D, JB/T8937
2, structure length: API594, API6D, DIN3202, JB/T8937
3, pressure, temperature grade: ANSI B16.34, DIN2401, GB/T9124, HG20604, HG20625, SH3406, JB/T74
4, test and inspection: API598, JB/T9092
5, piping flange: JB/ T74-90, GB/T9112-9124, HG20592-20635, SH3406, ANSI B 16.5, DIN2543-2548, GB/T13402, API605, ASMEB16.47
Four, the structural characteristics of the clamp check valve
1, the structure length is short, the structure length is only 1/4~1/8 of the traditional flange check valve
2, small size, light weight, its weight is only 1/4~1/20 of the traditional flange check valve
3, disc close fast, water hammer pressure is small
4, horizontal pipeline or vertical pipeline can be used, easy to install
5, smooth flow channel, small fluid resistance
6, sensitive action, good sealing performance
7, the disc stroke is short, the closing impact is small
8, the overall structure is simple and compact, beautiful appearance
9, long service life, reliable performance
1, the structure length is short, the structure length is only 1/4~1/8 of the traditional flange check valve
2, small size, light weight, its weight is only 1/4~1/20 of the traditional flange check valve
3, disc close fast, water hammer pressure is small
4, horizontal pipeline or vertical pipeline can be used, easy to install
5, smooth flow channel, small fluid resistance
6, sensitive action, good sealing performance
7, the disc stroke is short, the closing impact is small
8, the overall structure is simple and compact, beautiful appearance
9, long service life, reliable performance
Nortech is one of the leading industrial valve manufacturers in China with quality certification ISO9001.
Major products: Butterfly Valve, Ball Valve,Gate Valve, Check Valve, Globe Vavlve,Y-Strainers, Electric Acurator , Pneumatic Acurators .
Post time: Oct-08-2021