Fully Welded Ball Valve
A fully welded ball valve is a ball valve whose valve body and pipeline are connected by welding. Its valve body is made of integral forging or steel plate welding. It has the advantages of high structural strength, good sealing performance and long service life. It is widely used in high-pressure, large-diameter and high-risk medium pipelines in long-distance pipelines, urban gas, petrochemical and other fields.
Classification Of Fully Welded Ball Valves
Classification By Structural Form
- Floating ball fully welded ball valve: Under the action of medium pressure, the ball is pressed tightly on the sealing surface at the outlet to form a seal.
- Fixed ball fully welded ball valve: The ball is fixed by the upper and lower shafts, and the sealing seat is spring-loaded, and the sealing performance is more reliable.
Classification By Drive Mode
- Manual fully welded ball valve
- Pneumatic fully welded ball valve
- Electric fully welded ball valve
- Hydraulic fully welded ball valve
Characteristics Of Fully Welded Ball Valves
Advantages:
High structural strength
The valve body is made of integral forging or steel plate welding, with high structural strength and can withstand higher pipeline pressure.
01
Good sealing performance
It adopts advanced sealing structure and materials, has good sealing performance and can achieve zero leakage.
02
Long service life
The inside of the valve body is treated with a special coating, which is corrosion-resistant, wear-resistant and has a long service life.
03
Low maintenance cost
The fully welded structure does not require flange connection, which reduces leakage points and reduces maintenance costs.
04
Wide range of applications
It can be applied to a variety of media such as natural gas, petroleum, chemical industry, and electricity, and can select appropriate materials and structural forms according to different media and working conditions.
05
Disadvantages:
High Manufacturing Cost
Due to the use of integral forging or steel plate welding technology, the manufacturing cost is relatively high.
Difficult Maintenance
Since the valve body is welded to the pipeline, the pipeline needs to be cut during maintenance, which makes maintenance more difficult.
Applicable Environment Of Fully Welded Ball Valves
Fully welded ball valves are particularly suitable for the following environments:
- Long-distance pipelines: For example, natural gas long-distance pipelines, oil long-distance pipelines, etc.
- City gas: For example, city gas pipelines, natural gas pressure regulating stations, etc.
- Petrochemicals: For example, petrochemical equipment, oil and gas field mining, etc.
- Other high-pressure, large-diameter, and high-risk media pipelines: For example, thermal power plants, nuclear power plants, etc.
Selection Of Fully Welded Ball Valves
When selecting fully welded ball valves, the following factors need to be considered:
- Media type: Different media require valves of different materials.
- Pressure level: The working pressure of the valve needs to be greater than or equal to the pressure of the pipeline system.
- Temperature range: The working temperature of the valve needs to adapt to the temperature of the medium.
- Connection method: Select the appropriate valve connection method according to the connection method of the pipeline system.
- Flow requirements: Select the appropriate valve diameter according to the flow requirements.
As a high-performance valve, the fully welded ball valve plays an important role in high-pressure, large-diameter, and high-risk media pipelines. Selecting a suitable fully welded ball valve and using and maintaining it correctly can effectively ensure the safe and stable operation of the pipeline system.
Hot Tags: fully welded ball valve, China fully welded ball valve manufacturers, suppliers, factory, ball valve
