Hebei Zexu Pipe Manufacturing Co., Ltd.
Hebei Zexu Pipe Manufacturing Co., Ltd.
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Pipe flange refers to the flange used for piping in the pipeline installation and refers to the inlet and outlet flanges of the equipment when used on the equipment. There are holes on the flanges, and bolts make the two flanges tightly connected. The flanges are sealed with gaskets.
Because the flange has good comprehensive performance, it is widely used in basic projects such as chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire fighting, electric power, aerospace, shipbuilding and so on.
Materials shall be identified in the following ways:
(a) Cast flanges shall be marked with theASTMspeci-fiction, 1-grade identification symbol (letters and numbers), and the melt number or melt identification.
(b) Plate flanges and forged flanges shall be marked with the ASTM specification 1 number and grade identification symbol.
(c) Amanufacturermay supplement the mandatory material markings with his trade designation for the material grade, but the confusion of symbols shall be avoided.
(d) For flanges manufactured from a material that meets the requirements for more than one specification or grade of a specification listed inTable 1, separate. 4.2.8.
