Working principle and purpose of the product:

When the handwheel of the shut-off valve rotates clockwise, the valve stem moves downward, and the valve disc descends to seal the sealing surface, cutting off the passage When reversed, it opens and the valve stem is raised to a high point for sealing. This valve has added an upper seal When the valve is in the open state, it has a two-layer sealing effect together with the packing, and has a certain protective effect on the packing. This valve uses nylon products as the sealing surface, and the packing is soft formed packing. The upper seal is also made of soft material, and the sealing performance is good.

Product Structure Features:

1. The structure is simple, and manufacturing and maintenance are relatively convenient.

2. Small work schedule and short opening and closing time.

3. Good sealing performance, low friction between sealing surfaces, and long service life.