Compressor air valve
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Gentlemen, the copper gaskets at the valve seats of the five-stage valves in the 6M50 piston-type hydrogen and nitrogen compressor have broken multiple times – what is the reason for this? Solve
First, the material needs to be checked; copper high-pressure seals like this require tempering (annealing) treatment before use. Additionally, the bolt tightening force during installation should be even, applying pressure gradually and evenly. Otherwise, uneven stress is the main cause of damage to the gasket. It would also be better to send a video; it’s more intuitive to communicate through visuals.
1. Quality issues with copper gaskets； 2. Torque-controlled tightening
The fit between the air valve and the pressure valve cover should also be checked
It’s probably not installed properly. . Use a depth gauge to measure the dimensions of the valve gasket platform, the total height of the valve, and the dimensions of the platform at the compressor’s sealing flange. Then calculate the height it should have after installation. After installation, measure again to check for any areas where there is insufficient contact.
Send a picture to see the extent of the breakage, to determine whether it’s a material issue or a tightening problem
We have also experienced fractures, which were generally straight in shape; after annealing, such fractures no longer appeared. It works very well.
The problem lies in the insufficient tightness; there are gaps in the valve cover and cylinder liner, and it’s also possible that the copper gaskets weren’t properly tempered. The problem lies with you, because you didn’t specify what the compression amount is. Our analysis of the problem can only serve as a reference for you.
Check if there are any dents on the copper pad; if it’s not pressed firmly, it will definitely break due to back-and-forth vibrations. I really think it’s a material issue; you can try using an aluminum gasket. Using an aluminum gasket for the temperature control valves of reciprocating machines is also no problem
It’s unlikely that the possibility wasn’t contained; if it really wasn’t contained, turning it on would scare you to death with those high-frequency noises – the valves and gaskets seem to be ‘dancing’. It’s probably as the experts above said – the material treatment wasn’t done properly.
The pressure has definitely compacted it, with obvious indentations on the surface.