The use process problem of Square stem soft-seated butterfly valve


time:

2022-12-19

Square stem soft-seated butterfly valve, as a component used to realize pipeline system cut-off and flow control, has been widely used in many fields such as petroleum, chemical industry, metallurgy, and hydropower.

Square stem soft-seated butterfly valve, as a component used to realize pipeline system cut-off and flow control, has been widely used in many fields such as petroleum, chemical industry, metallurgy, and hydropower.

good price and quality Square stem soft-seated butterfly valve company
Problems in use:
1. The Square stem soft-seated butterfly valve manufacturer tells you that because the multi-layer soft-seated butterfly valve seal ring is fixed on the valve plate, when the valve plate is normally open, the medium forms a positive wash on the sealing surface, and the soft seal in the metal sheet interlayer After the belt is washed, it directly affects the sealing performance.
2. Restricted by structural conditions, this structure is not suitable for valves with a diameter below DN200, because the overall structure of the valve plate is too thick and the flow resistance is large.
3. Due to the principle of the triple eccentric structure, the seal between the sealing surface of the valve plate and the valve seat depends on the torque of the transmission device to make the valve plate press against the valve seat. In the positive flow state, the higher the medium pressure, the tighter the seal will be squeezed. The manufacturer of Square stem soft-seated butterfly valve tells you that when the medium in the channel flows backwards, as the pressure of the medium increases, the seal will start to leak when the unit positive pressure between the valve plate and the valve seat is less than the pressure of the medium.
The above is the introduction of the use process of Square stem soft-seated butterfly valve, I hope it will be helpful to you.