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Welding connection valve installation
1. Socket socket socket and butt weld beveling process to be correct, should be consistent with the relevant provisions of the standard 2. Welding to prevent iron filings, welding tentacles intruded into the pipeline should be used tungsten inert gas welding 3. Welding The valve should be in a slightly open state 4. Valves and piping materials should be based on the correct selection of welding materials. The use of packet welding, to check the custody of the electrode, and to confirm whether to adopt a suitable package of welding electrode species of drying. 5. engaged in welding operations personnel should meet the welding mechanic conditions. 6. After welding heat treatment requirements occasions, to check the heat treatment time temperature curve records. 7. Welding parts to be visually inspected or non-destructive examination to confirm no crack, welding tumor, undercut and other harmful defects. More Keywords Search: Valve