25Apr

Structural principle of water control valve

Structural principle of water control valve The water control valve is a valve that uses the pressure of water in the pipe network to control the opening, closing and opening of the valve. It is an automatic valve that saves manpower and energy. Widely used in hydraulic irrigation, high-rise buildings, fire protection systems, municipal water supply and drainage, electric power and other water supply pipe network systems. Its functions include automatic control of water level, decompression, pressure relief, pressure maintenance,...

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15Mar

What is the Butterfly valve

Butterfly valve refers to a valve whose closing part (disc or butterfly plate) is a disc and rotates around the valve shaft to open and close. It is mainly used for cutting and throttling on the pipeline. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjustment. The butterfly valve is usually less than 90°...

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21Nov

Metals Used in Valves & Fittings

Metals Used in Valves & Fittings Aluminum–A non-ferrous metal, very lightweight, approximately one-third as much as steel. Aluminum exhibits excellent atmospheric corrosion resistance, but can be very reactive with other metals. In valves, aluminum is mainly used as an exterior trim component such as a handwheel or identification tag. Copper–Among the most important properties of wrot copper materials are their thermal and electrical conductivity, corrosion resistance, wear resistance, and ductility. Wrot copper performs well in high temperature applications and is easily...

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18Apr

What are the new valve sealing ring materials in recent years?

Usually there are two types of valve sealing: hard sealing butterfly valve and soft sealing butterfly valve. Then the material of the sealing ring of the sealing butterfly valve has always been the focus of attention, and different sealing materials play different sealing functions. There are many kinds of gasket materials for sealing rings, such as paper, hemp, cowhide, asbestos, plastic, rubber, etc. There are still many new materials, and the sealing technology is developing rapidly. The following examples...

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19Nov

Technical description of two-way flow hard-on-hard spin ball valve

Most of the valves in the pipe network system are mainly used to cut off and adjust the medium. This part of the valve occupies a large proportion in the entire system, the amount is large, and the valve is required to be durable and cost-effective. At the same time, it should be able to perform when the medium flows in the forward direction. Adjustment and cut-off can prevent the medium from flowing back when the pressure difference is...

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15Nov

Full lined PTFE butterfly valve

Introduction The fully lined fluorine butterfly valve is not only simple in structure, small in size, light in weight, low in material consumption, small in installation size, but also small in driving torque, easy and fast to operate, and it can also have good flow joint function and closing and sealing characteristics at the same time. One of the fastest growing valve varieties in the past ten years. Advantages The main advantages of the fully lined fluorine butterfly valve are simple structure,...

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08Sep

Selection of butterfly valve for water supply pipeline

Centerline butterfly valve and eccentric butterfly valve The centerline butterfly valve and the eccentric butterfly valve have their own advantages and disadvantages, and their cost performance should be considered when selecting the model. Generally speaking, the center line butterfly valve is cheaper than the eccentric butterfly valve. Centerline butterfly valves are widely used in my country's small-diameter butterfly valves, and the effect is relatively good. Its closing seal is essentially a rubber lining squeeze seal, especially near the valve shaft...

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02Sep

Classification of butterfly valves

The opening and closing parts are disc-shaped discs and can rotate around the axis of the valve body. It is mainly composed of valve body, valve stem, disc and sealing ring. The valve body is cylindrical, short in axial length, and has a built-in disc. The disc is driven by the valve stem, and if it is turned 90°, it can open and close once. By changing the deflection angle of the disc, the flow of the medium can...

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