AP Diving Ltd. APV200 Inflator Maintenance Manual
Page 19 of 30
5. Clean and Replace Service Parts
The servicing of the APV200 inflator contains 4 “action groups”:
1. Removing and binning all parts that should be replaced. This includes all O-rings.
2. Depending on the gas content the APV200 inflator is exposed to, keep it in oxygen
service. The CGA (Compressed Gas Association), US Navy, UK’s HSE and the EIGA
(European Industrial Gas Association) all recommend that breathing gasses with an
oxygen content of 23.5% or higher should be treated as 100% oxygen. However, some
technical training agencies still use 40% as the maximum percentage that is allowed for
equipment that is not in oxygen service.
AP Diving advises to err on the side of safety, and to use the value of 23.5% as the
cutoff percentage beyond which the equipment must be in oxygen service.
If in doubt: keep it in oxygen service, as that only takes a little bit more effort.
3. Ultrasonic-cleaning of all disassembled metal parts. This is mandatory if the APV200
inflator is to be kept in oxygen service, but recommended in all other servicing situations.
4. Lightly grease new parts, fit them, and re-assemble the APV200 inflator with the correct
tools and the correct torques. Use oxygen-compatible grease, and avoid contaminating
the metal parts after cleaning. Use the smallest amount of grease possible.
5.1 Service kit contents
As described in chapter 3.1, all the parts included in the APV200A Inflator Service Kit always
need to be replaced when servicing the APV200 inflator. The service kit contents are:
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