What is the electric wafer type hard seal butterfly valve? The electric wafer type hard seal butterfly valve is one of the butterfly valves, which is connected in the form of wafer type butterfly valve. It is also one of the most commonly used butterfly valve products in engineering pipelines. The other is the flange type butterfly valve, which we will introduce later. In addition, the connection forms of butterfly valve include welding, clamp, thread, etc., but these are not commonly used in production pipelines. This article will give you a comprehensive introduction to the electric wafer type hard seal butterfly valve.

The electric wafer type hard seal butterfly valve is a valve with a wide range of uses. With different valve materials and different driving forms, the electric wafer type hard seal butterfly valve can adapt to many different working conditions and different media. Electric wafer type hard seal butterfly valve can be divided into soft seal and hard seal according to the seal ring material. The soft seal electric wafer type hard seal butterfly valve has excellent sealing performance, but due to the limitations of the sealing material, it cannot be used in high temperature and high pressure pipelines. The hard seal electric wafer type hard seal butterfly valve is made of metal, which has strong high temperature and high pressure resistance, but the sealing performance is not particularly good.

D973H electric wafer type hard seal butterfly valve

Material introduction of main components of electric wafer hard seal butterfly valve

Valve body: gray cast iron, nodular cast iron, cast steel, stainless steel, etc;

Butterfly plate: nodular cast iron, cast steel, stainless steel, etc;

Valve rod: usually stainless steel;

Valve seat: soft seal (EPDM, nitrile rubber, PTFE, etc.), hard seal (cemented carbide).

The driving forms of electric wafer hard seal butterfly valve include: handle drive, turbine drive, pneumatic, electric, etc. The first two handles and the turbine are both manually driven. Pneumatic and electric drive are automatic valves, which are usually used in the working environment where manual operation is impossible or there is a certain risk.

Compared with other connecting types of valves, the electric wafer type hard seal butterfly valve has a shorter structure length and is also smaller, which is suitable for installation in a narrow space environment. What are the advantages and disadvantages of electric wafer hard seal butterfly valve?

Advantages of electric wafer hard seal butterfly valve

1. Convenient and quick opening and closing, labor-saving, small fluid resistance, and can be operated frequently;

2. Simple structure, small overall size, short structure length, small volume and light weight;

3. The opening and closing torque is small. Since the butterfly plates on both sides of the shaft are basically equal to the media, the direction of the torque is opposite, so the opening and closing is more labor-saving;

4. The sealing surface materials are generally rubber and plastic, so the low pressure sealing performance is good;

5. Flexible and labor-saving operation, manual, electric, pneumatic and hydraulic modes can be selected.

Disadvantages of electric wafer type hard seal butterfly valve

Compared with the flanged butterfly valve, the electric wafer hard seal butterfly valve has only four bolt holes at the top and bottom, and the connection is not stable when installed on the pipeline with too large diameter, so the electric wafer hard seal butterfly valve is not suitable for installation on the pipeline with too large diameter

This is all about "what is the electric wafer type hard seal butterfly valve". I hope this article will give you a clearer and intuitive understanding of "electric wafer type hard seal butterfly valve". Of course, if you have any purchase demand in this respect, you are also welcome to call Bande Valve to discuss cooperation.