Safety valve in ammonia refrigeration compressor
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Dear sea friends, I would like to ask whether what is marked in the ammonia refrigeration compressor unit in the image below is a safety valve, and whether it needs to be inspected regularly
For the safety valve of an ammonia refrigeration unit, you can check the nameplate. You need to check the medium to see whether it is the safety valve for ammonia or for circulating water.
As long as it is a device or facility designed for safety, regular safety inspections should generally be carried out to prevent the failure of its safety functions; this is a basic principle； Therefore, this safety valve must undergo regular safety inspections, whether it is used with ammonia or water as the medium.
Is this a safety valve? /?
It’s not very clear, but the safety valves of the refrigeration units (ammonia compressors, fluorine compressors) need to be inspected regularly
The refrigeration unit shown in the picture is a York chiller; this is an oil pressure relief valve, not a safety valve
The oil separator in ammonia refrigeration units is equipped with a safety valve; it constitutes a pressure vessel, so check the drawings
This shouldn’t be a safety valve, because a safety valve is an accessory; from the photos, it seems impossible to remove it； Therefore, it is not a safety valve; it should be a pressure-limiting device