Flange basic introduction-phase 7
A loose sleeve 4 flange is a type of flange that features a separate sleeve that fits over the pipe and then slides into the flange, allowing for quick and easy installation or removal, any questions or needs of custom flanges please contact us for a quote.
Pipe flanges and their gaskets and fasteners are collectively referred to as flange joints.
Flange joint is a kind of component which is widely used in engineering design and involves a wide range of areas. It is an essential part of pipe design and pipe fitting valves, and it is also a necessary component in equipment and equipment components (such as manholes, sight glasses, liquid level gauges, etc.). In addition, other professions such as industrial furnaces, thermal engineering, water supply and drainage, heating and ventilation, automatic control, etc., also often use flange joints.
Forged steel, WCB carbon steel, stainless steel, 316L, 316, 304L, 304, 321, chromium molybdenum steel, chromium molybdenum vanadium steel, molybdenum dititanium, rubber lined, fluorine lined material.
Flat welded flange, neck flange, butt welded flange, ring joint flange, socket flange, and blind plate, etc. Implementation standards: GB series (national standard), JB series (Mechanical department), HG series (chemical department), ASME B16.5 (American standard), BS4504 (British standard), DIN (German standard), JIS (Japanese standard).
There are two main international pipe flange standards, namely, the European pipe flange system represented by the German DIN(including the former Soviet Union) and the American pipe flange system represented by the American ANSI pipe flange.
Loose sleeve flange - one of 12 kinds of flanges
The loose sleeve flange of the butt welding ring is a movable flange, which is generally matched on the water supply and drainage accessories. When the manufacturer leaves the factory, each end of the expansion joint has a flange, which is directly connected with the pipe and equipment in the project with bolts.
Function: The purpose of using the butt welding ring loose sleeve flange is generally to save materials, its structure is divided into two parts, the pipe part and the pipe are connected, and the head is made into the butt welding ring. Flanges are made of low-grade materials, and the pipe part is made of the same material as the pipe to achieve the purpose of saving materials.
Advantages:
1. Cost savings. When the pipe material is special and the price is expensive, the cost of welding the flange of the same material is high.
2. Not easy to weld or not easy to process or the strength required. Such as plastic pipe, glass steel pipe and so on.
3. Easy to construct. For example, it is not easy to find the corresponding flange bolt holes during connection or prevent the flange bolt holes of the equipment from changing in the future.
Disadvantages:
1. Low pressure.
2. Low strength at the welding ring (especially when the thickness is below 3mm)
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