Plate flat welded flange is a convenient material, simple manufacturing, low cost, widely used hardware accessories, but the rigidity is poor, so it should not be used in chemical process piping system with flammable, explosive and higher vacuum requirements and extremely hazardous occasions. There are different types of sealing surfaces, with flat and raised surfaces.
Details of Flange Accessories:
Temperature range: -30 degrees to 250 degrees
Pressure: PN0.25MPa, PN0.6MPa, PN1.0MPa, PN1.6MPa, PN2.5MPa, PN4.0MPa
Medium: applicable to water, gas, steam, corrosion, acid and alkali
Common materials:
Carbon Steel：ASTM A105,20#、Q235、16Mn、 ASTM A350 LF1,LF2 CL1/CL2,LF3 CL1/CL2、ASTMA694 F42,F46,F48,F50,F52,F56,F60,F65,F70；
Stailess Steel：ASTM A182 F304、304L、 F316、316L、1Cr18Ni9Ti、0Cr18Ni9Ti、321、18-8；
Alloy Steel：ASTM A182 F1、 F5a、 F9、F11、 F12、 F22、 F91、A182F12、A182F11、16MnR、Cr5Mo、12Cr1MoV、15CrMo、12Cr2Mo1、A335P22、St45.8/Ⅲ
Features:
Flat welded flange is a type of flange that is directly welded to equipment or pipes through fillet welds. The structure is simple and the processing is convenient. The force characteristics are between the overall flange and the loose flange. The flat welded flange is divided into plate flat welded flange and slip-on flat welded type. The flat welded flange is low in cost and short in production cycle. It is the most commonly used The flange type is widely used in various fluid pipes.
