The structure of the ventilation butterfly valve is welded using a centerline butterfly plate and a short structural steel plate, so there are no connecting rods or bolts inside, and there will be no component problems during use, resulting in a low failure rate. It is very convenient to use. It is a reliable valve device. And because its sealing system uses metal sealing, although the sealing effect is not as good as elastic sealing, its service life is longer than elastic sealing, and it has the characteristic of being able to withstand high temperatures. So it has a wide range of applications in industries such as building materials, electricity, metallurgy, etc. In medium conveying pipelines with temperatures not exceeding 300 degrees, connection and closure adjustment can be achieved. This butterfly valve can also be customized and processed according to customer needs.

Structural features:

1. Designed and manufactured using a new structural form of welding midline butterfly plates and short structural steel plates, it has a compact structure, light weight, easy installation, low flow resistance, large flow capacity, avoids the influence of high temperature expansion, and is easy to operate.

2. No connecting rods, bolts, etc. inside, reliable operation, long service life. Can be installed in multiple workstations without being affected by the flow direction of the medium

Purpose: Ventilation butterfly valve is a non sealed butterfly valve widely used in production processes such as building materials, metallurgy, mining, and power. It is used for connecting, opening, closing, or regulating medium flow in pipelines with medium temperature ≤ 300 ℃ and nominal pressure of 0.1Mpa.