Flange ball valve production and use

What is flange ball valve?

Flange ball valve is a valve product, usually by the body, valve cover, spool, seat and other components. It is characterized by rotating the ball to control the flow of the medium, and has the advantages of simple structure, easy operation and good sealing performance. Flange ball valve is usually used in pipeline system, can be used to control the flow of fluid, pressure and flow, widely used in petroleum, chemical, electric power, metallurgy and other fields. The main function of the flange ball valve is to open, close or regulate the fluid flow in the pipeline system, and it is a valve product commonly used in industrial production.

What are the types of flanged ball valves?

Flange ball valves can be divided into various types according to their structure, working principle and application fields. The following is the classification of several common flange ball valves:

1. Classification according to structure:

- Fixed ball valve: The ball is fixed in the valve body, and the flow of the medium is controlled by rotating the valve stem.

- Floating ball valve: The ball can float in the valve body, through the pressure of the medium to achieve sealing, suitable for high pressure, high temperature conditions of fluid control.

V-type ball valve: The ball is V-shaped, which can realize the adjustment and truncation of the fluid, and is suitable for occasions with high medium viscosity.

2. According to the valve material classification:

- Stainless steel flanged ball valve: mainly used for high corrosion resistance occasions.

- Carbon steel flange ball valve: mainly used in general industrial occasions.

- Cast iron flange ball valve: mainly used in low pressure, low temperature occasions.

3. Classification according to connection mode:

- Flange connection Ball valve: connected to the piping system through a flange.

- Threaded ball valve: threaded to the piping system.

- Welded connection Ball valve: welded to the piping system.

4. Classification according to working mode:

- Manual flanged ball valve: Through manual operation to control the opening and closing of the valve.

- Pneumatic flange ball valve: through the pneumatic actuator to control the opening and closing of the valve.

- Electric flange ball valve: The opening and closing of the valve is controlled by electric actuator.

Flange ball valve production process

1. Material preparation: First of all, it is necessary to prepare the materials required for the production of flange ball valves, including the raw materials of the valve body, valve cover, valve core, valve seat, valve stem and other components, usually cast iron, carbon steel, stainless steel and other materials.

2. Parts processing: raw materials are cut, forged, cast and other processing processes to make various parts of flange ball valves, such as valve bodies, valve covers, spool and so on.

3. Component assembly: The processed parts are assembled, including the installation of spool, seat, stem and other components, and debugging and inspection to ensure the tightness and operational performance of the valve.

4. Surface treatment: Surface treatment of the assembled flange ball valve, such as spraying anti-corrosion paint, galvanized, etc., to improve the corrosion resistance and beauty of the valve.

5. Testing and acceptance: The production of good flange ball valve performance test and quality inspection, including sealing performance test, pressure test, appearance inspection, etc., to ensure that the valve meets the relevant standards and requirements.

6. Packaging and delivery: The flanged ball valve that has passed the inspection is packaged, usually using wooden boxes, cartons and other packaging methods to protect the valve from damage during transportation, and finally the factory is delivered to customers.

The above is the general production process of flange ball valve, the specific production process and steps may vary according to different manufacturers and product models. In the production process, the quality and process of each link are strictly controlled to ensure the production of high quality and reliable flange ball valve products.

How to choose flange ball valve

1. Working pressure and temperature: First of all, we must consider the working pressure and temperature range in the pipeline system, select the appropriate rated pressure and temperature grade of the flange ball valve, to ensure that the valve can work normally and has sufficient pressure and temperature resistance.

2. Medium characteristics: Consider the nature of the fluid in the pipeline system, such as the corrosion, viscosity, particulate matter content of the medium, select the appropriate valve material and sealing material to ensure that the valve can be effectively sealed and corrosion-resistant.

3. Flow requirements: According to the flow requirements of the pipeline system, select the appropriate flange ball valve diameter and flow characteristics to ensure that the valve can meet the flow control needs of the system.

4. Operation mode: Select manual operation, electric operation or pneumatic operation of the flange ball valve according to actual needs, in order to achieve remote control or automatic control.

5. Leakage requirements: Considering the requirements of the pipeline system for leakage, choose a flange ball valve with good sealing performance to reduce the risk of leakage.

6. Safety requirements: Consider the safety requirements of the pipeline system, select flange ball valve products that meet the relevant standards and certifications, and ensure that the valve meets the safety specifications.

7. Brand and quality: Choose well-known brands and manufacturers with good reputation to produce flanged ball valves to ensure reliable product quality and after-sales service.