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20

2024-03

What are the sealing materials for flange ball valves?

1. PTFE sealing: PTFE material has good chemical resistance and corrosion resistance, and can be used in a wide range of media. PTFE sealing can provide good sealing performance and has a low friction coefficient, suitable for various working conditions.

2024-03-20

What are the sealing materials for flange ball valves?

21

2024-03

What are the main driving methods for flange ball valves?

1. Manual operation: The manual operation of flange ball valves usually adopts a structure such as a handle or handwheel, and the opening and closing degree of the flange ball valve is controlled by manually rotating the handle or handwheel. The advantages of manual operation are simple structure, low cost, and easy manual control, but there are also disadvantages such as inconvenient operation and the need for manual monitoring.

2024-03-21

What are the main driving methods for flange ball valves?

09

2021-11

What is the pressure loss of flange ball valves in fluid flow?

Valve structure: Different types of ball valve structures (such as full bore ball valves, drag reducing fluid design ball valves, etc.) will have different effects on fluid pressure loss. Designing more streamlined and larger ball valves typically results in smaller pressure losses.

2021-11-09

What is the pressure loss of flange ball valves in fluid flow?

09

2024-04

What should I do if the valve is not tightly closed? What are the handling methods

Reasons for general valve failure to close tightly or tightly: (1) There are impurities stuck on the sealing surface, which deposit at the bottom of the valve or cushion between the valve disc and valve seat. (2) Rust on the valve stem thread prevents the valve from rotating; (3) The sealing surface of the valve is damaged, causing leakage of the medium; (4) The poor connection between the valve stem and valve disc causes the valve disc and valve seat to deviate and cannot be tightly contacted.

2024-04-09

What should I do if the valve is not tightly closed? What are the handling methods

09

2024-04

Sealing instructions for ball valves

The main seat sealing ring material for ball valves is polytetrafluoroethylene (PTFE), which is environmentally friendly to almost all chemicals and has comprehensive characteristics such as low friction coefficient, stable performance, resistance to aging, wide temperature range, and excellent sealing performance. However, the physical properties of polytetrafluoroethylene, including its high coefficient of expansion, sensitivity to cold flow, and poor thermal conductivity, require the design of valve seat seals to revolve around these characteristics.

2024-04-09

Sealing instructions for ball valves

09

2024-04

Installation method of ball valve

Installation method of ball valve

2024-04-09

Installation method of ball valve

21

2024-03

The working principle and countermeasures of flange ball valves in harsh environments

Flange ball valve is a common type of valve, which is commonly used in harsh environments such as high temperature, high pressure, corrosion, and severe vibration. The following is the working principle and response measures of flange ball valves in harsh environments:

2024-03-21

The working principle and countermeasures of flange ball valves in harsh environments

12

2021-11

What are the sealing materials for flange ball valves?

PTFE sealing: PTFE material has good chemical resistance and corrosion resistance, and can be used in a wide range of media. PTFE sealing can provide good sealing performance and has a low friction coefficient, suitable for various working conditions.

2021-11-12

What are the sealing materials for flange ball valves?

12

2021-11

What are the sealing materials for flange ball valves?

PTFE sealing: PTFE material has good chemical resistance and corrosion resistance, and can be used in a wide range of media. PTFE sealing can provide good sealing performance and has a low friction coefficient, suitable for various working conditions.

2021-11-12

What are the sealing materials for flange ball valves?

09

2021-11

What is the key to choosing a flange ball valve model?

Working environment and medium: When selecting a flange ball valve model, it is necessary to understand what working environment and medium the valve will be used for, such as the temperature, pressure, acidity, corrosiveness, and other characteristics of the medium. Select corresponding valve models for different working environments and media requirements, such as high-temperature, corrosive, wear-resistant, etc.

2021-11-09

What is the key to choosing a flange ball valve model?
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