20# Carbon Steel Plate Flat Welding Flange 16KG New Standard Welded Iron Flange Blind Flange Special-Shaped Custom 16KG

20# Carbon Steel Plate Flat Welding Flange 16KG New Standard Welded Iron Flange Blind Flange Special-Shaped Custom 16KG

Flat welding ring loose sleeve flange is a movable flange piece, which is generally matched with water supply and drainage accessories (the most common on the expansion joint). When the manufacturer leaves the factory, both ends of the expansion joint have a flange, which is directly connected with the pipeline and equipment in the project with bolts. The purpose of using flat welding ring loose flange is generally to save material, the structure is divided into two parts, the pipe part of a head and pipe connection, a made flanging, flange part set in the flanging edge. Flanges are made of low grade material, while pipes are made of the same material as pipes to save material.
Flat welded ring loose flange:
1. Cost saving. When the pipe material is special and expensive, the cost of welding the flange of the same material is high.
2. It is not convenient for welding or processing or the strength required is large. Be like plastic tube, glass steel tube and so on.
3, easy to construction. For example, the flange bolt holes are not easy to be aligned during connection or prevent the flange bolt holes from changing after replacement.
Disadvantages of flat welded ring loose flange:
1. Low pressure.
2. Low strength of welding ring (especially when the thickness is less than 3mm)
Flat welding ring loose flange production standard:
GB: GB/T9112-2000 (GB9113·1-2000 ~ GB9123? 4-2000)
American standard: ANSI B16.5 Class150, 300, 600, 900, 1500 (WN, SO, BL, TH, LJ, SW)
JIS 5K, 10K, 16K, 20K (PL, SO, BL, WN, TH, SW)
DIN2573, 2572, 2631, 2576, 2632, 2633, 2543, 2634, 2545 (PL, SO, WN, BL, TH)
Department of Chemical Industry standard: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91
Flange Standard: HG20592-2009(PN series) HG20615-2009 (Calss series)
Mechanical standard: JB81-59 ~ JB86-59, JB/T74-1994, JB/T79-94 ~ JB/T86-94
Pressure vessel standard: NB/T47020-2012 ~ NB/T47027-2012, JB1157-82 ~ JB1160-82 B16.47A/B B16.39B16.48
Ring groove face flange and flange cover
Large diameter flat flange
Large diameter high neck flange
Eight blind flange
Butt-welded ring loose sleeve flange 6
Rotate the flange
Anchor flange
Surfacing/cladding flange
Marine lap welding steel flange Standard No. : This standard is applicable to Marine products, Marine engineering products. Main material: carbon steel, alloy steel, low temperature steel, stainless steel.
Forging flange connection is to put two pipes, pipe fittings or equipment, and forging flange connection is an important way of pipeline construction. Forged flange connection is easy to use and can withstand large pressure. Forging flange connection is widely used in industrial pipelines. In the home, the pipe diameter is small, and the low pressure is invisible flange stamping elbow connections. If you are in a boiler room or production site, there are flanged pipes and equipment everywhere. Chromium content of 0.1% ~ 0.5% (forging flange in general do not contain chromium), carbon content below 1.0% and the forging flange using high temperature forging manufacturing, some of the forging flange surface hardness (HRC) while it is possible to achieve more than 56 or only around 15 ㎜) (hardening layer, because of its poor forging flange material hardenability the core hardness is generally more than 30 degrees, Under normal circumstances, water quenching is often used for forging flanges.