Stainless steel flat welded flange side fittings are custom made. The fixture must first reach the leak point. The point is to establish a closed chamber between the stainless steel flange of the body and the pipe joint. To prevent leakage between the body and the stainless steel flange due to pressure retention, an annular cavity is provided where the clamp and the outer edge of the stainless steel flange of the body overlap. The tooth contact clamp is used as a restraining device because the clamp on the small diameter stainless steel flange can be easily moved to the small diameter stainless steel flange during injection. After the sealant has hardened during operation, check for stress relaxation and perform local reinjection to close the injection port.

Stainless steel flat welding flange installation steps:
1. welding current should not be too large, about 20% smaller than carbon steel electrode, arc can not be too long, inter-layer cooling can not prevent heating flange cover corrosion must be fast.
2. The electrode must be dried before use. Perovskite type should be dried at 150°C for 1 hour and low hydrogen type should be dried at 200-250°C for 1 hour (do not repeat drying more than once. Do not add welding, welding carbon content to prevent electrode coating adhesion to oil and other dirt, so as not to affect the quality of parts.
3. welding stainless steel flange pipe fittings, due to repeated heating and corrosion resistance, carbide precipitation and mechanical properties.
4. After welding, the flange of hardened CHROMIUM stainless steel flange fittings is larger and easier to crack. Similar types of chrome-stainless steel electrodes (G202, when using G207) must be preheated to 300°C or higher after welding and gradually cooled to about 700°C after welding. If heat treatment of the weld is not possible, rods (A107, A207) must be used for welding stainless steel flanges.
5. stainless steel flange, the right amount of stable elements Ti, Nb, Mo, etc., in order to improve the corrosion resistance and weldability, weldability is better than chromium stainless steel flange, when using the same type of chromium stainless steel flange electrode (G302, G307), preheat it to 200°C or higher, and after welding to about 800°C temper. If not, use it.
6. stainless steel flanged tube electrode (A107, A207), stainless steel flanged tube fittings, welding flange electrode has excellent corrosion resistance and oxidation resistance is widely used in manufacturing chemicals, fertilizers, petroleum, medical machinery.