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Is there any standard for flange water line on valve pipeline? What is the standard?
1. There is a standard. American Standard flange, you can refer to the ASME B16.5 on the flange of the standard.
2. In the fluid pipeline system, the valve is the control element, its main fu
2018-03-31
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American Standard 1/2 flange and GB 3/4 valve can connect it
1. In the fluid pipeline system, the valve is the control element, its main function is to isolate the equipment and pipe system, adjust the flow rate, prevent reflux, adjustment and discharge pres
2018-04-04
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What is the difference between h71 check valve and h76 check valve?
Check valve additional number: HH micro - retarded stop check, BH insulation check valve, HQ ball type check valve; Type of check valve: H represents check valve; Check valve connection: 4 flange, 6 w
2018-04-13
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Operating principle of pneumatic valve.
The working principle of pneumatic valve is as follows:
1, pneumatic control valve is compressed air as power source, the cylinder as actuator, and by means of electric valve positione
2018-04-23
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Precautions for internal thread gate valves.
Handwheel, handle operated tube stop valve can be installed in any position of the pipe. Handwheel, handle and actuator are not allowed to be used for lifting. The flow of the medium should be in line
2018-05-02
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The working principle of the three-way ball valve.
A. opening process
1 in the closed position, the ball is pressed by the mechanical pressure of the stem and pressed against the seat.
2 when the handwheel is turned counterclockwise, the stem is in
2018-05-09
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How to install the pneumatic switch ball valve properly?
The preparation before installation of pneumatic ball valve mainly includes:
1, ensure pneumatic pipeline ball valve installation position line on the position of coaxial, pipeline flange should keep
2018-05-21
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Where is the spring check properly installed
The main function of the spring check valve is that the water hammer pressure is small, the disc travel is short, the disc is light, it has the help of spring to close, and the valve closing speed is
2018-06-04
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How to properly install needle valve
1. Before installation, it is necessary to carefully check whether the needle valves used meet the requirements of use, such as type, calibre, nominal pressure and applicable media.
2. Remove impurit
2018-06-12
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Check valves can be divided into
Check valves can be divided into three types: lift check valve, swing check valve and butterfly check valve.
The lifting type check valve is divided into two types, vertical and horizontal.
Swing ch
2018-07-15
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What is the one inch of a ball valve
One inch of the ball valve means the nominal diameter of the valve is 1 inches, that is, the DN25 valve.
1 and 1/2 are DN40. In general, there are many inches on the pipe. Half of the valve is DN
2018-07-18
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What is the difference between a copper ball valve and a stainless steel ball valve
The difference between the copper ball valve and the stainless steel ball valve:
1, the materials they use are completely different. The copper and stainless steel ball valves adopted by the
2018-07-23
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