Plate type flat welding flange, also known as flat plate flange or lap welding flange, is a flange that inserts a pipeline into a flange hole and connects it to equipment or pipeline through a fillet weld. The connecting surface is usually flat or protruding. During installation, the two flanges are fixed with bolts and nuts, and a gasket is placed in the middle to achieve sealing.

material

materialmainIncluding austenitestainless steel、Dual phase steel, titanium alloyHastelloy, Monel, Inconel, and customized special metals.

execution standard

Common implementation standards include chemical standard HG20592, national standard GB/T9119, and mechanical standard JB/T81、American standard ASME B16.5 and ASME B16.47 Wait.

pressure rating

The pressure level has PN2.5（0.25MPa）~PN25（2.5MPa）、CLASS150~CLASS 600Wait.

Product advantages

Convenient material selection, simple manufacturing, low cost, relatively easy installation and disassembly, with good comprehensive performance and wide application. The application scope is widely used in basic engineering such as chemical, construction, water supply, drainage, petroleum, light and heavy industries, refrigeration, sanitation, plumbing, fire protection, electricity, aerospace, shipbuilding, etc.

Welding form

The welding method is single-sided welding with double-sided nut connection, which involves inserting the pipe into the flange and welding it on the outside of the flange.