Rising stem gate valve overview

Rising stem gate valve is a common type of valve, characterized by the gate as the opening and closing part, and the movement direction of the gate is perpendicular to the direction of the fluid. Due to its structural characteristics, the rising stem gate valve can only be fully opened and fully closed, and is not suitable for regulation and throttling. The gate usually has two sealing surfaces, the most common of which is a wedge-shaped design. The wedge angle varies according to the specific parameters of the valve, usually 50 degrees. When the medium temperature is not high, the wedge angle can be 2°52'.

Types of rising stem gate valves

Rising stem gate valves can be divided into wedge-type gate valves and parallel gate valves according to the configuration of the sealing surface. Wedge-type gate valves can be further divided into single gate, double gate and elastic gate; parallel gate valves can be divided into single gate and double gate. In addition, according to the thread position of the valve stem, rising stem gate valves can also be divided into two types: rising stem gate valves and concealed stem gate valves.

Advantages of rising stem gate valves

The rising stem gate valve has the following significant advantages:

• Simple structure: It is composed of simple parts such as valve body, gate, and stem, which is easy to install and maintain.
• Good sealing performance: The sealing performance between the gate and the valve seat is excellent, which can effectively prevent medium leakage.
• Long service life: The use of high-quality materials and reasonable structural design makes the rising stem gate valve have a long service life.
• Good cut-off performance: It can completely cut off the flow of the medium in the closed state and has excellent cut-off performance.
• Wide range of applications: It is suitable for a variety of media such as liquids, gases and powders.

Application of rising stem gate valves

Due to its simple structure, good sealing performance, long service life, good cut-off performance and other advantages, rising stem gate valves are widely used in various industrial fields, including water supply, drainage, petrochemical, electric power, metallurgy and other industries.