• Sep , 21 2023

Ball valve structure There are many types of structures for ball valves, but they are basically the same. They are all round ball cores with opening and closing parts, mainly composed of valve seats, balls, sealing rings, valve stems, and other driving devices. The valve can be opened and closed by rotating the valve stem 90 degrees. They are used in pipelines to shut off, distribute, regulate flo...

• Sep , 19 2023

Working principle: 1. Direct acting solenoid valve Principle: When the normally closed direct acting solenoid valve is energized, the electromagnetic coil generates electromagnetic suction to lift the valve core, causing the sealing element on the valve core to leave the valve seat port and open the valve; When the power is cut off, the electromagnetic force disappears, and the sealing element on ...

• Sep , 19 2023

Motor unit： Advantages: 1.Strong applicability, not affected by environmental temperature 2.Wide range of output torque 3.Convenient control, able to freely use various signals such as DC, AC, shortwave, pulse, etc., making it suitable for amplification, memory, logical judgment, and calculation work 4.Can achieve ultra miniaturization 5.With mechanical self-locking 6.Easy installation 7.Convenien...

• Sep , 14 2023

As a throttling element, flow limiting orifice plates have the advantages of simple structure, easy processing, low manufacturing cost, and convenient installation. Under the premise of meeting the process requirements, using flow limiting orifice plates instead of regulating valves to limit flow or reduce pressure will greatly reduce investment and operation and maintenance costs. Therefore, they...

• Sep , 14 2023

The arrow marked on the valve body refers to the recommended pressure bearing direction of the valve, rather than the flow direction of the pipeline medium. Valves with bidirectional sealing function can be marked without indicating arrows, or with arrows because the arrow of this valve refers to the recommended pressure bearing direction, and there is always a better direction between the left, r...

• Sep , 12 2023

Adjustment of safety valve opening pressure (set pressure): Within the specified working pressure range, the opening pressure can be adjusted by rotating the adjusting screw and changing the pre compression amount of the spring. After removing the valve cover and loosening the locking nut, the adjustment screw can be adjusted. Firstly, increase the inlet pressure to make the valve jump once. If th...

• Sep , 12 2023

At present, there are four basic types of water pump impellers: channel type (single channel, double channel), blade type (closed or open), spiral centrifugal type, and swirl type. The performance and structure of various impellers are detailed below. The impeller of a centrifugal pump is generally a closed impeller. The semi open and open impellers in the blade type impeller are easy to cast and ...

• Sep , 07 2023

The flow rate and flow rate of a valve mainly depend on the diameter of the valve, and are also related to the resistance of the valve structure to the medium. At the same time, they are inherently related to various factors such as valve pressure, temperature, and medium concentration. The flow channel area of a valve is directly related to the flow rate and flow rate, which are interdependent qu...

• Sep , 07 2023

The installation and maintenance of butterfly valves should pay attention to the following matters: During installation, the valve disc should be stopped in the closed position. 2. The opening position should be determined according to the rotation angle of the butterfly plate. 3. For butterfly valves with bypass valves, the bypass valve should be opened before opening. 4. Installation should be c...

• Sep , 05 2023

Due to the fact that electric butterfly valves are composed of butterfly valves and electric devices, the correct selection of electric devices after determining the butterfly valve is an important factor related to whether it can meet engineering needs in practical use. When selecting an electric device, not only should the aforementioned working environment, electrical control, and general techn...