What is the GB standard for wafer type butterfly valves
date:2023-05-04 11:12
The butterfly plate of the clamp type butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc shaped butterfly plate rotates around the axis, with a rotation angle between 0 ° -90 °, which can play a role in flow regulation. When the butterfly plate rotates to 90 °, the valve reaches a * large opening. The butterfly valve has a simple structure, small size, and light weight, and is only composed of a few parts. Moreover, the valve can be quickly opened and closed by rotating it 90 °, with simple operation and excellent fluid control characteristics.
GB/T 26144-2010 "Steel lined fluoroplastic butterfly valves with flange and wafer connections"
JB/T 8527-1997 "Metal Seal Butterfly Valves"
GB/T 12238-2008 "Elastic Seal Butterfly Valves with Flange and Wafer Connections"
Structural form of wafer type butterfly valve
(1) Center sealed butterfly valve
(2) Single eccentric sealed butterfly valve
(3) Double eccentric sealed butterfly valve
(4) Triple eccentric sealing butterfly valve
Sealing surface material
(1) Soft sealing butterfly valve.
1) The sealing pair is composed of non-metallic soft materials and non-metallic soft materials.
2) The sealing pair is composed of metal hard materials and non-metallic soft materials.
(2) Metal hard sealed butterfly valve. The sealing pair is composed of metal hard material to metal hard material.
