Carbon Steel Welding Plate Flange

Carbon Steel welding plate flanges

The applicable range of plate welding flanges has been increased from PN25 to PN40, and it is recommended not to use them in environments with strict requirements such as flammable, explosive, highly hazardous media, etc. Its sealing surface types include protruding surfaces and fully flat surfaces. The applicable pressure range of plate welding flanges in domestic and foreign pipe flange standards is shown in Table 1.

                                                                                         Table 1

Flange size

Flange inner diameter. The inner diameter of the flange for welding plate flange is determined based on the outer diameter of the steel pipe and considering a deviation of about 1% of the outer diameter, plus appropriate clearance.

Surface Treatment:Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Manufacturing process:Cutting, Heat treatment, Die Forging/Free Forging, CNC Machining

Manufacturing Standards:EN 1092-1-2007,ISO 7005-1-1992,AS 2129-2000,GB/T 9112-2010, GB/T 9119-2010,HG/T 20592-2009,GOST- AFNOR- BS- DIN

Flange Face Type:Flate Face (FF), Raised Face (RF)

Size:1/2" (15 NB) to 48" (1200NB)

Class:150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.

Flanges are a type of disc-shaped component, most commonly used in pipeline engineering, and are typically paired together. In pipeline engineering, flanges are mainly used for connecting pipelines. Install a flange plate on the pipeline that needs to be connected. For low-pressure pipelines, threaded flanges can be used, and for pressures above 4 kilograms, welded flanges can be used. Add sealing points between the two flanges and tighten them with bolts. Flanges with different pressures have different thicknesses and use different bolts. When connecting water pumps and valves to pipelines, the corresponding flange shapes are also made for the parts of these equipment, also known as flange connections. Any connecting parts that are bolted together in two planes and enclosed at the same time are generally referred to as "flanges", such as the connection of ventilation ducts, which can be called "flange type parts". However, this connection is only a partial part of a device, such as the connection between a flange and a water pump, so it is not appropriate to call the water pump a "flange type component". Smaller components such as valves can be called "flange parts".

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