Flat welded steel flange: carbon steel pipe at a nominal pressure of not more than 2.5MPa connection. Welded flange sealing surface can be made into a smooth style, bump style and tenon slot three smooth-type flat Welding Electrodes  application amount used for medium conditions easing, such as low-voltage non-purified compressed air.
Low pressure water circulation, it has the advantage of relatively cheap; butt Tungsten Electrode: for the counterparts welding of the flange and the pipe, the reasonable structure, strength and stiffness, and can withstand high temperature and pressure and repeated bending and temperature fluctuations. reliable sealing. nominal pressure 0.25 ~ 2.5MPa welded flange bump-type sealing surface.

Choose a reliable connection of the line (welding clamp leads) connectors to be tightened, making good contact and prevent overheating, good insulation Lead solder and insulation tape the joints exposed conductor dressing several layers of insulation. 2 Lead laying the welding machine at and connected to the secondary side terminals of the welder, compression screw it firmly good contact, prohibit the use of the winding method to connect. To avoid laying Lead solder is the connector from the water through, where necessary, overhead.Welding Wires hrough metal railings or escalator, the application of good insulation properties string to hang. (3) welding machine metal shell and reliable grounding. Namely: a wire one end to the grounding grid, the other end connected to the welder shell ground mark the screw and tighten, making it a reliable ground to prevent the live shell cause electric shock. 4 Plug the power cord connected to the Flux Cored Welding Wires side of the terminal, clamping screw it firmly good contact, prohibit the use of the winding method to connect. The power line, welding line joints and insulation aging defects in insulating tape bandage, wire insulation serious aging prohibit the use of the bare terminal should be added guard to prevent accidental touch electric shock accident. Check the power guillotine with a fuse or fuse breaker is in off position, the power cord to the power switch fuse or fuse side is strictly prohibited live wiring. Again the power cord, pin-out, shell grounding wire carefully examined, verified, close the power switch, co-switch should be wearing insulated gloves and other hand may not touch the welder.