The working principle, characteristics and structure of gate valves

Working principles and characteristics of gate valves
A gate valve is also known as a sluice valve, and it is mainly composed of a valve body, a valve bonnet, a gate disc, a valve stem, a valve seat and a packing material.

The structure of a gate valve



1-The valve body; 2-The valve disc; 3-The valve seat; 4-The valve stem; 5-The gasket; 6-The bonnet; 7-The upper seal seat; 8-The packing material; 9-The pack bushing; 10-The packing press plate; 11-The stem nut; 12-The locking nut; 13-The set screw; 14-The hand wheel; 15-The bearing gland; 16-The grease cup

A gate valve is a valve whose dis is driven by the valve stem to have a linear movement along the valve seat (sealing surfaces). In general, a gate valve cannot be used for regulating the flow and can only be used as a cut-off device. It is either fully opened or closed. A gate valve is the most widely used valve among various types of valves. A gate valve can be applied to conditions such as normal temperature and pressure, high temperature, low temperature, high pressure and low pressure. A gate valve can be made of different materials so as to carry various media.

A gate valve has the following advantages.

The body structure of a gate valve is relatively simple and the manufacturing process of a gate valve is better.