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2026-03-04

Regarding the usage methods and precautions for fluorine-coated valves

The fluorine-coated valve flange cover must not be opened at will. Unless it is ready to be connected to the pipeline, otherwise the PTFE flange surface may be damaged by temperature differences, foreign objects, impacts, scratches or distortion due to deformation, which will affect the sealing. If the cover needs to be moved for inspection purposes, it must be reset immediately after the inspection to protect the PTFE flange surface.

2026-02-14

Pneumatic fluorine-coated butterfly valve: An industrial valve with corrosion resistance and efficient control capabilities

Pneumatic fluorine-lined butterfly valve, also known as pneumatic lined anti-corrosion butterfly valve, is a type of valve that features a butterfly plate with a spherical sealing surface coated with polytetrafluoroethylene (PTFE). This valve is driven by an air actuator to achieve the functions of quick shut-off or flow regulation.

2026-01-11

Full Analysis of Ball Valve Sealing Surface Selection: How to Make Accurate Selection Based on Conditions

The selection of the sealing surface for a ball valve involves multiple factors, including the type of medium, working conditions, operating temperature, surrounding environment, and the performance requirements of the sealing surface. The following is a detailed analysis of the selection of the sealing surface for a ball valve:

2025-11-30

Valve performance evaluation

Inspection items: Check for any defects on the valve's appearance, such as cracks, bubbles, dents, etc.; Verify whether the markings, nameplates and surface treatments meet the requirements. Standards: International standards include API 598, ASME B16.34, ISO 5208, etc.; Chinese standards include GB/T 12224 (General Requirements for Steel Valves), GB/T 12237 (Steel Ball Valves for Petroleum, Petrochemical and Related Industries), etc.

2025-09-23

Detailed Analysis of the Valve Maintenance Process: Key Steps for Restoring Safety and Efficiency

The general procedure for valve maintenance is a systematic and meticulous process, aiming to ensure that the valve can resume normal operation and meet safety and reliability requirements. The following is a general procedure for valve maintenance, compiled based on multiple sources:

2025-06-14

Butterfly Check Valve: Safeguarding Pipeline Safety, Intelligent Anti-Backflow Expert

The butterfly check valve, also known as the butterfly-shaped check valve or double-leaf check valve, is a type of valve that automatically opens and closes the valve flap based on the flow of the medium itself. It also has aliases such as reverse flow valve, one-way valve, reverse pressure valve, etc. The working principle of the butterfly check valve is relatively simple.

2025-01-10

Technical requirements for valve installation

Valves are devices used in fluid systems to control the direction, pressure and flow of fluids. During the construction process, the quality of valve installation directly affects the normal operation in the future. Therefore, it is necessary for construction units and production units to give it high attention.

2024-10-20

How does the ball valve work?

The ball valve is a sphere driven by the valve stem as an opening and closing part. The valve that rotates around the axis of the ball valve can be used for the adjustment and control of fluid. Ball valves were launched in the 1950s and have now become the most widely used valves.

2024-09-30

Excellent application and selection points of butterfly valve in air pipeline system

Butterfly valve is a simple regulating valve whose main function is to cut off the circulation of the medium in the pipeline or adjust the flow of the medium in the pipeline. The application of butterfly valves has multiple advantages

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