Working principle and purpose of the product:

Needle shaped regulating valves use cones, frustums, or spheres to press into the center of the valve seat to achieve sealing. Good sealing effect, suitable for working under high pressure, low flow rate, and small diameter conditions; Large caliber is rare, with good flow adjustment performance and easy blockage. In the case of large changes in temperature, the valve core and seat are prone to locking. Installed on the water supply pipeline of medium pressure boilers and the pipeline of temperature and pressure reduction devices for regulating flow.

Product Structure Features:

1. The two ends of the branch pipe are connected by flanges.

2. The flow regulation of the valve is achieved by the relative up and down movement of the needle shaped valve stem inside the valve seat, which changes the size of the annular area between the valve seat and the stem.

3. The sealing surface is made of iron-based chromium nickel overlay welding.