What Is Flat Welded Ring Loose Sleeve Flange?

The flat welded ring loose sleeve flange is a flange joint formed by combining the flat welded flange and the ring loose sleeve flange. Flat welded ring loose sleeve flange is widely used in some general low pressure, low temperature occasions, such as water supply, gas and other pipeline system.

Flat welded ring loose sleeve flange is suitable for pressure ≤2.5MPa, temperature ≤120℃ occasions, more suitable for some general low pressure, low temperature occasions. The advantages are simple installation, high popularity and low cost, and the disadvantages are small scope of application, poor corrosion resistance and wear resistance.

The characteristics of flat welded ring loose sleeve flange are as follows:

• Simple structure: its structure is relatively simple, consisting of a sleeve and a ring loose nut, the flange is first set on the pipe during installation, and then the gasket and washer are added to the flange, and finally the bolt is tightened and fixed.

• Good tightness: The tightness of this flange is good, suitable for pipeline pressure and high environmental conditions.

• Easy to weld or process: The advantage of this flange is that it is easy to weld or easy to process or need large strength, such as plastic pipe, glass steel pipe and so on.

• Easy construction: if the flange bolt hole corresponding to the connection is not easy to find or prevent the change of the flange bolt hole of the equipment in the future.

• Cost saving: When the pipe material is special and the cost of welding the flange of the same material is high, the use of flat welded ring loose sleeve flange can save costs.

• Low pressure: The disadvantage of flat welded ring loose sleeve flange is that the pressure is low and the strength at the welded ring is low (especially when the thickness is below 3mm).

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