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Classification of check valves

Classification of check valves: The check valve that opens or closes by the force of the medium flow to prevent the medium from flowing back is called a check valve. Check valves belong to the category of automatic valves, which are mainly used in pipelines where the medium flows in one direction, and only allow […]

Check valve and its working principle

What is check valve? Check valve refers to a valve whose opening and closing parts are circular discs and rely on its own weight and medium pressure to generate actions to block the back flow of the medium. It is an automatic valve, also called check valve, one-way valve, return valve or isolation valve. The […]

Detailed introduction of soft sealing butterfly valve-(3)

Features of soft sealing butterfly valve: 1. Small and light, easy to disassemble and repair, and can be installed in any position. 2. The structure is simple and compact, the operating torque is small, and the 90-degree rotation opens quickly. 3. The flow characteristics tend to be straight, and the regulation performance is good. 4. […]

Detailed introduction of soft sealing butterfly valve-(2)

There are many types of soft-sealed butterfly valves, which can be divided into the following categories according to different forms: Classified by structure Classified by structure (1) Center sealing butterfly valve (2) Single eccentric sealed coal valve (3) Double eccentric sealing butterfly valve (4) Triple eccentric seal valve Classified according to the sealing surface material: […]

Detailed introduction of soft sealing butterfly valve-(1)

The butterfly plate of the soft sealing butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°. When the rotation reaches 90°, the valve is fully opened. The […]

Difference between Soft seal gate valve and hard seal gate valve

Soft seal gate valve and hard seal gate valve are two major categories in the gate valve series. Hard seal and soft seal can sometimes compensate for each other, and sometimes they are independent of each other. So what is the relationship between soft seal gate valve and hard seal gate valve? What are the […]

Difference between soft seal butterfly valve and hard seal butterfly valve

The difference between soft seal butterfly valve and hard seal butterfly valve: A butterfly valve hard seal refers to a “hard seal” in which both sides of the seal pair are made of metal materials or other harder materials. This kind of seal has poor sealing performance, but high temperature resistance, wear resistance, and good […]

Triple eccentric multi-level hard sealing flange butterfly valve

The triple eccentric multi-level hard-sealed flange butterfly valve is a valve designed with the principle of three-dimensional knitting. The product is composed of main components such as valve body, butterfly plate, multi-level valve seat, valve stem, and transmission mechanism. It is widely used in the pipelines of corrosive media such as metallurgy, electric power, petroleum, […]

Installation instructions of double eccentric butterfly valve

Installation instructions of double eccentric butterfly valve: 1. Before installation, you must carefully check whether the valve’s mark and certificate of conformity meet the requirements for use, and clean it after verification. Uninstalled valves should be stored in a dry room. Valves stored for a long time should be cleaned regularly, dried and coated with […]

Classification and features of Eccentric butterfly valves

Eccentric butterfly valves are divided into single eccentric butterfly valves, double eccentric butterfly valves, triple eccentric butterfly valves, and variable eccentric butterfly valves. Contrast with concentric butterfly valve. A butterfly valve whose stem axis deviates from the center of the disc and the center of the body at the same time, and the sealing pair […]