Clean workshop piping equipment requirements

Clean workshop piping equipment requirements

The valve is mainly used for the control part in the process of fluid transportation; the valve should meet the needs of segmenting, zoning control and maintenance of the water supply pipeline. The main function of the gate valve is to retain the medium. When the valve is opened, the pipeline is straight, and the medium at this time has a small pressure loss,...

Text label: clean pharmaceutical cleanroom piping equipment, piping equipment installation requirements

Clean workshop piping equipment requirements

The valve is mainly used for the control part in the process of fluid transportation; the valve should meet the needs of segmenting, zoning control and maintenance of the water supply pipeline. The main function of the gate valve is to intercept the medium. When the valve is opened, the pipeline is straight. At this time, the medium runs with a small pressure loss. This kind of valve cannot be opened and closed frequently. Usually, the gate should be guaranteed to be fully open or fully closed. , so it cannot be used for adjustment or throttling; when the medium flows at a high speed, if the gate is partially opened, it may cause vibration of the gate, which may damage the sealing surface of the gate and valve seat, and the throttling will cause the gate. It is eroded by the medium; the advantages of the gate valve are smooth flow passage, small fluid resistance, and small opening and closing torque. There are many applications. Common gate valves are large-diameter valves. According to different sealing surfaces, they can be matched into wedge gate valves and parallel disc gate valves; according to the thread position of the valve stem, they can also be divided into rising stem gate valves, dark stem gate valves, and rising stem gate valves. When the gate valve is started, the valve stem will fall, which can better control the degree of opening and closing of the valve; the gate valve with dark stem is mainly installed in places with little space for installation and operation, otherwise it will affect the work due to the rise of the valve stem when the valve is opened. .

The disc of the butterfly valve is designed in the direction of the pipe diameter. The butterfly valve body is mainly located in the cylindrical channel. The disc-shaped disc rotates around the axis, and the rotation angle is 0-90°. When it reaches 90°, it is Fully open valve, the butterfly valve has a relatively simple structure, small size and light weight. The components are several small parts, which can be quickly opened and closed by rotating 90°, so the operation is not difficult; when the butterfly valve is fully opened, the medium flows through the valve body. The only resistance is the thickness of the disc, so the valve will not produce too much resistance, has good flow control characteristics, and is also good for regulating flow. The sealing methods of butterfly valves are divided into elastic sealing and metal sealing. The sealing ring of the elastic sealing valve is directly fixed on the valve body or set next to the butterfly plate; the metal sealing can withstand higher working temperature, and the elastic sealing cannot withstand If the temperature is too high, the function of the butterfly valve is the same as that of the ordinary valve. Compared with the ordinary valve, the width of the butterfly valve is smaller. When the valve plate is opened, it occupies the position of the upstream and downstream pipelines, so it cannot be in close contact with the wedge and This kind of gate is used around parallel valves, and butterfly valves are mainly used in medium and low pressure pipelines. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean workshops and clean rooms.

The check valve can prevent the water from flowing in one direction. It is mainly used in the outlet pipe of the pump, the user's connection, and the inlet pipe of the water tower. It is mainly used to prevent the water from flowing backward; the fluid will open the valve flap and the water flow will be able to flow through the pressure. It flows from the inlet to the water outlet. When the inlet is smaller than the outlet, the valve disc will close the channel by itself due to the influence of the pressure of the flowing water and its own gravity, thereby avoiding the backflow of fluid; It can be divided into lift type, swing type and butterfly type. The exhaust valve is mainly installed in the place where the pipeline is uplifted. Because of the existence of the exhaust valve, the air in the pipe can be discharged through this valve. The long-distance water pipeline is often set according to the terrain, and the exhaust valve is usually designed at a high place. The drain valve is mainly to remove the sediment in the pipeline or repair and empty it and meet the needs of pipeline flushing and drainage. The valve is mainly set in the recess of the pipeline and the lowest part of the pipe section between the valves. During construction, it is necessary to leave a drain hole; the pipeline system When the pressure drops to a fixed value, the drain valve will discharge the water in the pipeline, so as to ensure that it will not be damaged due to freezing. When determining the drain point, it is also necessary to comprehensively consider which direction the drain is discharged.

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