Umbrella gear gate valve

Umbrella gear gate valve, also known as gate plate valve or gate valve, is a valve equipment widely used in the industrial industry.

1、 Working principle

The umbrella gear gate valve controls the opening and closing of the valve through the lifting and lowering of the gate. When the gate is raised, fluid can flow through the valve; When the gate is lowered, the valve closes, preventing fluid flow.

2、 Structural characteristics

Branch connection: The two ends of the branch are welded to confirm the stability and sealing of the valve.

Gear transmission: The opening and closing of the valve is controlled by a gear transmission device, which achieves easy opening and closing of the valve through a bevel gear mechanism.

Valve cover structure: The valve closure is mainly achieved through the bevel gear mechanism on the valve cover and adjustable components such as double single gate, universal top, clamp ring, etc., which are guided by the valve body for lifting and lowering movements.

Sealing surface: The sealing surface of the valve seat is made of cobalt based hard alloy welding, which is wear-resistant (based on actual reports) and has good abrasion resistance, confirming the long-term stable operation of the valve.

Valve stem treatment: The surface of the valve stem is treated with corrosion-resistant nitriding, which has good corrosion resistance and abrasion resistance, improving the service life of the valve.

3、 Performance advantages

Low fluid resistance: Due to the fact that the gate is perpendicular to the direction of the fluid and the sealing surface is less susceptible to erosion and erosion by the medium, the fluid resistance is low.

Effortless opening and closing: Adopting a gear transmission device makes the opening and closing of the valve easy and effortless.

Unrestricted flow direction of medium: The design of the valve ensures that the flow direction of the medium is unrestricted, without disturbance or pressure reduction.

Simple structure: The umbrella gear gate valve has a relatively simple structure, good manufacturing processability, and a wide range of applications.

Good sealing performance: Adopting a pressure self tightening sealing mechanism, the wedge-shaped sealing ring is compressed by the medium pressure to achieve sealing effect. The higher the medium pressure, the better the sealing performance.

4、 Application industry

Umbrella gear gate valves are widely used in industrial industries such as petroleum, natural growth gas, chemical, power, steel, and wastewater treatment. In these industries, umbrella gear gate valves are mainly used to control the flow of fluid in pipelines and ensure the stable operation of pipeline systems. For example:

Petrochemical industry: used in pipeline systems for transporting various media, with excellent performance in preventing media leakage and ensuring safe production.

The natural growth gas industry plays an important role in the natural growth gas transmission pipeline, ensuring the safe transportation of natural growth gas.

Water treatment industry: mainly used in pipeline systems of water plants, sewage treatment plants and other places, with low flow resistance and less likely to be blocked.

The power industry is widely used in thermal and hydraulic systems in places such as thermal power plants and nuclear power plants.

5、 Installation and maintenance

Installation: The umbrella gear gate valve needs to be installed vertically on a horizontal pipeline, and the medium can enter from any side. During installation, the sealing and stability of the valve should be confirmed.

Maintenance: Regularly check the wear of valve sealing surfaces, valve stems, and other components, and replace severely worn parts in a timely manner. At the same time, the valve should be kept clean and lubricated to extend its service life.