How well do you know the options available to CCR divers? Save this post to help you find the right counter lungs for your rig. Don't miss out using the right gear for your dive. Divers love SubGravity GEN 2 BACKMOUNT COUNTERLUNGS for many reasons, including the mounting to the diver's backplate in front of the wing, these configurations place the counterlungs along the diver's back which both frees up the chest area and offers similar work of breathing characteristics of OTSCLs. Learn more about your options in the slides.
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To breathe effectively, a rebreather must incorporate some sort of flexible container which the diver breathes in and out of. We call these “counterlungs”, and they come in several varieties. Where the counterlungs are positioned can have a significant effect on the hydrostatic work of breathing of the rebreather. Essentially, the farther away from the divers lungs, the more of an impact the counterlungs will have on the work of breathing.
Over the Shoulder Counterlungs (OTSCL) drape over the diver’s shoulders and down their chest. Historically offering the best work of breathing characteristics, OTSCLs also take up a considerable amount of valuable real estate on the diver's chest and can be bulky and cumbersome. OTSCLs also require use of a T-piece, which can limit head movement.
Back Mounted Counterlungs (BMCLs) can be mounted in the case of the rebreather behind the diver, or run down their back directly in front of the backplate. Traditional BMCLs were mounted behind the diver's backplate and wing in the case of the rebreather. Traditional BMCLs also do not require T-pieces on the diver’s shoulders, which allows for greater flexibility of the loop hoses and typically allow for slightly better head movement. While very streamlined, this places the counterlungs far above the diver's back and can cause an increase in work of breathing as the diver inhales. (Show image of unit with in-case BMCL, KISS or rEvo)
Newer generation BMCLs offer a mix of both OTSCLs and traditional BMCLs. Mounting to the diver's backplate in front of the wing, these configurations place the counterlungs along the diver's back which both frees up the chest area and offers similar work of breathing characteristics of OTSCLs. However, this type of BMCL requires a T-piece similar to OTSCLs.
Another option is these zip off XCCR Counter lungs!
To breathe effectively, a rebreather must incorporate some sort of flexible container which the diver breathes in and out of. We call these “counterlungs”, and they come in several varieties. Where the counterlungs are positioned can have a significant effect on the hydrostatic work of breathing of the rebreather. Essentially, the farther away from the divers lungs, the more of an impact the counterlungs will have on the work of breathing.
Over the Shoulder Counterlungs (OTSCL) drape over the diver’s shoulders and down their chest. Historically offering the best work of breathing characteristics, OTSCLs also take up a considerable amount of valuable real estate on the diver's chest and can be bulky and cumbersome. OTSCLs also require use of a T-piece, which can limit head movement.
Back Mounted Counterlungs (BMCLs) can be mounted in the case of the rebreather behind the diver, or run down their back directly in front of the backplate. Traditional BMCLs were mounted behind the diver's backplate and wing in the case of the rebreather. Traditional BMCLs also do not require T-pieces on the diver’s shoulders, which allows for greater flexibility of the loop hoses and typically allow for slightly better head movement. While very streamlined, this places the counterlungs far above the diver's back and can cause an increase in work of breathing as the diver inhales. (Show image of unit with in-case BMCL, KISS or rEvo)
Newer generation BMCLs offer a mix of both OTSCLs and traditional BMCLs. Mounting to the diver's backplate in front of the wing, these configurations place the counterlungs along the diver's back which both frees up the chest area and offers similar work of breathing characteristics of OTSCLs. However, this type of BMCL requires a T-piece similar to OTSCLs.
Another option is these zip off XCCR Counter lungs!