OSEL Quick-Connect Locking (OSEL QC)

Harking back to the era of the hi-end Parker zero face wet-mateable quick connects (QCs) fitted to the Cis-Lunar Mk5p offboard gas switchblock, Open Safety is pleased to offer a range of SS316 zero face QC fittings for offboard Make Up Gas and offboard OC Bail Out Gas applications.

Whilst BCD QC style fittings and Swagelok QC-6 fittings are widely used by some divers for QC to offboard cylinders, neither are suitable for dive use, nor in order to meet CE certification purposes for offboard gas supply, when submerged.

Open Safety Underwater QCs have zero face surfaces allowing them to be connected and disconnected underwater – under pressure - without passing water through the gas injection path into the rebreather.

 Instructions:

1. The default is for the Male end to be on the unit, switch block or the divers body and the Female end on the offboard gas supply loose whip.
2. To disconnect the connectors, align the slot in the female connector with the ball on the connector body, and pull back.
3. To lock the connector, rotate the knurled sleeve such that the ball and slot do not align.
4. The locking mechanism prevents accidental disconnection as a safety feature when bailing out and for Commercial diving applications, but does not hinder the connection of the male and female halves.

The connectors have a standard 3/8” UNF thread and O-ring, compatible with most low pressure SCUBA hose connections and do not require thread re-machining for SCUBA use or require the use of adapters that may introduce additional failure points.

1. If the connector has been in storage a long time, then it may need to be connected and disconnected a few times to reseat the O-rings that seal – this can be done in the water or out of the water.
2. If the O-rings are not seated then it can take a second or two before the gas flow is shut off. These QC connectors are not a user serviceable item and are regarded as a consumable for user safety and service purposes.

Both Open Safety QC connectors and Open Safety offboard switch block are designed to be incorporated into the offboard gas path of a rebreather. 

Open Safety Underwater QC connectors are available with custom length LP hoses terminated in 3/8” UNF thread and or our custom ALVBOV angle 7/16” fitting. For an additional cost these QC connectors can be supplied in OXYGEN service.