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Written schemes of examination - The Pressure Systems Safety Regulations 2000
Rank: New forum user 
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Does a 4 stage compressor delivering 300 bar; with no air receiver (used for filling SCUBA diving cylinders) require a written scheme of examination under The Pressure Systems Safety Regulations 2000?
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Rank: Super forum user
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Air is a relevant fluid. However, unless there is a pressure-volume product of 250 bar litres or more, then there is no requirement for a written scheme of examination.
It does still need to be safe!
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Rank: Super forum user
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Hutchinson
Jane is spot on with her 250bar pressure. The thing with 4 stage compressors used for SCUBA tanks is that they are operating at such a high pressure that the "cylinders" within the compressor itself can actually reach this figure. I used to be SCUBA instructor and our compressors needed the examination.
Hope that helps
Brian
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Rank: Super forum user
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Depends on when the equipment was put into operation and how you interpret Schedule 1, Part 1, 2.(2) of the PSSR Regulations.
If 7. (a) of Schedule 1, Part 1 is applicable then PSSR does not apply.
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Written schemes of examination - The Pressure Systems Safety Regulations 2000
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