Commonly used industrial pipes and equipment controls mainly refers to some commonly used valves, it is used to control the flow of media within the pipeline. Valve commonly used in modern life are Butterfly Valve, Ball Valve , plug valve, check valve, exhaust valve and one valve (the following Bohai secondary water supply equipment on the valve as an example). Butterfly valve butterfly valve structure is simple, small size, light weight, only a few components. And just turn 90 ° to quickly open and close, easy to operate, and has good fluid control characteristics. When the butterfly valve is fully open, the thickness of the plate is the only resistance of the medium flowing through the valve body, so the pressure generated by the valve will be small and therefore has better flow control characteristics.
Commonly used butterfly valve clamp butterfly valve and flange two. Clip-on butterfly valve is to use double-headed bolts to connect the valve between the two pipe flanges. Flanged butterfly valve is a valve with a flange, the valve on both ends of the flange on the pipe flange connection. Optional Features: Butterfly valve suitable for installation on large diameter pipe. Plug valve Plug valve or turn center. It is mainly composed of the valve body and plug (conical or cylindrical). Hot tap is also a plug valve.
Selection of features: simple structure, small size, quick opening and closing, easy operation, small fluid resistance, easy to manufacture three-way or four-way valve, can be used for distribution of commutation. However, the sealing surface is easy to wear and tear, switching power larger. Such valves are not suitable for conveying high-pressure medium (such as steam), only for general low-pressure fluid for opening and closing, should not be used for regulating flow. Check valve also known as single-flow valve or check valve, it is a valve under the pressure difference before and after the opening and closing of the valve automatically. It has strict directivity, allowing medium to circulate in one direction while preventing it from flowing in the opposite direction. Used to prevent reverse flow of medium on the pipeline, such as for the pump outlet pipe as a pump to stop the pump when the protection device.
Optional features: Generally suitable for cleaning media, with solid particles and viscous media is not applicable. Ball valve ball valve opening and closing pieces (ball) by the Valve Stem and around the ball valve for rotational movement of the valve. Ball valve in the pipeline is mainly used to cut off, distribute and change the flow direction of the medium, it only needs to rotate 90 degrees of operation and a small turning moment can be closed tight. The most suitable valve to do the switch, cut off the use of the valve.
Optional Features: Suitable for medium containing fiber, tiny solid particles and so on. Exhaust valve Exhaust valve piping system is an essential auxiliary components, widely used in boilers, oil and gas, water supply and drainage pipelines. Often installed in the commanding heights or elbows, etc., to exclude excess gas pipeline, pipelines to improve the efficiency and reduce energy consumption.
Optional features: applied to the floor heating system, central air conditioning pipe exhaust valve is essentially a dynamic pressure balance valve and an electric Control Valve combined, double valve cone structure to achieve dynamic balance adjustment.
Optional features: For a network of heating control water supply, building air-conditioning control to achieve water balance.
Solenoid Directionsal Valves,Rexroth Directional Control Valve,Directional Control Valve
Brando Hardware Co., Ltd. , http://www.nbbrandohydraulic.com
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