Vacuum ball valve and butterfly valve are not the same temperature and pressure level

Vacuum ball valve and butterfly valve are not the same temperature and pressure level

From the point of view of the operating temperature, the ball valve is not suitable for the steam medium due to the sealing material and structure, and the butterfly valve can be applied to the conventional saturated steam medium for heating (below 350 degrees).

The butterfly valve structure is relatively simple, and the low pressure generally uses a butterfly valve, and the ball valve structure is relatively complicated and more resistant to high pressure.

Sealing and caliber are not the same

The butterfly valve is characterized by a fast opening and closing speed, a simple structure, and a low cost, but the tightness and pressure bearing capacity are not good. The ball valve can be quickly opened and closed, and can be completely sealed under high pressure and temperature. Therefore, in comparison, the sealing performance of the ball valve is better than that of the butterfly valve. However, due to the limitation of the volume and the opening and closing resistance, the ball valve is difficult to achieve a large diameter, and the structural principle of the butterfly valve is particularly suitable for manufacturing a large diameter valve.