Flanges and gaskets

　　1.     Inserted flange, the two flanges’ face do not connect the flanges than already assembled with gasket. If the gasket itself completely reach the necessary surface pressure before connection the flange, then it will be not so tightly.

　　2.     Do not make the sealing gasket of the high pressure flange fly out of the high pressure situation. In order to limit the pressure sealing area, the inner peripheral surface uses a narrow sealing gasket. On such occasions, if it is like the left side of the figure that after fastening in local place if incomplete, sealing gasket disconnect flew out of danger, it is best with the sealing gasket is arranged in the slot of the form, even if relaxation is absolutely can not fly out

　　3.　Do not make the flange gasket groove near the weak.

　　If the thickness of the flange and the concave flange are the same, the bottom of the groove is very thin, In order not to become weak, the concave flange should be thickened

　　4. by screw thread screw into the fastening of the gasket is easy to break. If the screw thread fastening gasket is easy to break large diameter, narrow width, thin gaskets, in fastening operation is easily broken to avoid the gasket for against friction and sliding fastening methods, it is best to use only by pressing the fastening method

　　We have adopted advanced production equipment and technologies to manufacture our weld neck flanges and BS4504 101 PN6 plate flange, which can not only improve product quality, but also save raw materials. Our products have high strength, good toughness and resistance to corrosion.