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Dry suit inflation installation onto a KM 37 helmet - DEV imca
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Dry suit inflation installation onto a KM 37 helmet

The practice of installing a dry suit inflation whip with modified fittings onto a KM 37 side block has been reported to IMCA.

Kirby Morgan Dive Systems Inc. has advised the following.

  • The modification to the side block assembly of the KM 37, shown in the photograph above, is not recommended;
  • The leverage on the brass fitting is extremely high giving a high potential for breakage;
  • The fitting at the bottom of the side block is a 3/8″ straight thread fitting with an O-ring seal which is not designed to sustain this kind of leverage.

Members are reminded that an in-line valve is not deemed necessary by the helmet manufacturer, as long as a good quality and suitably approved inflator hose is used or the KMDSI restrictor adapter PN# 555-210.

Safety Event

Published: 9 June 2008
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IMCA Safety Flashes
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IMCA Safety Flashes summarise key safety matters and incidents, allowing lessons to be more easily learnt for the benefit of all. The effectiveness of the IMCA Safety Flash system depends on Members sharing information and so avoiding repeat incidents. Please consider adding safetyreports@imca-int.com to your internal distribution list for safety alerts or manually submitting information on incidents you consider may be relevant. All information is anonymised or sanitised, as appropriate.

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