The three-piece welded ball valve is a common industrial valve suitable for fluid control in pipeline systems. It mainly consists of three parts - the valve body and two end covers, which are connected by bolts or welding. It has a compact structure and good sealing performance. It is widely used in petroleum, chemical, pharmaceutical, food and other industries.

Features of three-piece welded ball valve

1. Compact structure: The three-piece design makes the valve body easier to disassemble, convenient for maintenance and cleaning.

2. Fully welded connection: It can prevent leakage and improve sealing, especially suitable for high pressure and high temperature environments.

3. Excellent sealing performance: Soft seals (PTFE, PPL) or hard seals (alloy steel, tungsten carbide) are usually used to ensure that the fluid does not leak.

4. Small fluid resistance: The ball valve has the same diameter as the pipeline, and there will be no large pressure loss when the fluid flows through.

5. High temperature and high pressure resistance: Suitable for harsh working conditions such as high temperature, high pressure, and strong corrosion.

6. Optional drive mode: manual, pneumatic, electric and other different drive modes to meet the needs of automation control.

Common Applications：

Petrochemical: transport flammable and explosive media, such as natural gas, oil, chemical solvents, etc.

Food and Pharmaceutical: ensure the hygiene of the pipeline system and comply with GMP standards.

Heating System: used for high-temperature hot water and steam pipeline control.

Water Treatment: suitable for environmental protection equipment, such as sewage treatment and seawater desalination systems.

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  three-piece welded ball valve

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  High-pressure ball valve