Help: The coupling on the pump side of the oxygen pump is damaged
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The pump is a VP4/305 model vertical multi-stage pump manufactured by Cryostar; the coupling on the pump side, that component which looks quite like a flange, has been damaged. There are no spare parts available – does anyone have this spare part? Help needed
The faster way is to have it measured and processed; most shipping services are currently suspended, otherwise one can simply ask the manufacturer to provide a set of spare parts.
What type of coupling is this? It is usually referred to as a pump coupling. Different types of couplings have varying levels of precision; when designing and manufacturing them, attention must be paid to the requirements regarding geometric tolerances. Photos are available for easier analysis
Damaged? See what’s damaged – whether it’s the threads or overall deformation – and whether repair is possible It cannot be repaired; if you want a quick solution, the only option is to fabricate one new one. The structure isn’t complex, but it’s important to ensure the precision of the threading.
Where is the coupling broken? Is it twisted and deformed into a spiral shape, or are the threads damaged so that bolts cannot be inserted to tighten it?