2026-02-05

Standard Full Analysis of the Chemical Industry Flange PN Series: Revealing the Details of the Markings

Raised face (RF): Smooth surface, suitable for general media and pressure conditions. Full plane (FF): Completely flat surface, suitable for low pressure, non-critical sealing occasions. Eccentric face (MFM): One flange is concave, the other is convex, suitable for higher pressure and temperature conditions. Screw groove face (TG): One flange is screw-shaped, the other is groove-shaped, suitable for high pressure, high temperature or flammable and explosive media. Ring connection face (RJ): Metal ring sealing is used, suitable for ultra-high pressure and high temperature conditions.

2026-02-05

Flange connection vs Socket connection: How to choose the best pipe connection method?

Installation Complexity: The structure is simple, and installation is fast, suitable for space-constrained or emergency repair scenarios. Maintenance Convenience: Disassembly is convenient, but it may become loose over time, requiring regular inspection.

2026-02-05

What are the common surface treatment processes for flanges?

Such as painting, rust prevention treatment, etc. These processes can be selected based on specific requirements and application scenarios. In conclusion, the surface treatment processes of flanges are diverse, and each process has its unique advantages and application scope. When choosing, factors such as flange material, usage environment, performance requirements, and cost budget should be considered comprehensively to ensure the selection of the most suitable surface treatment process.