UNDERWATER TOOLS DEPTH GUIDELINE
UNDERWATER MODELS ONLY
CAUTION
DO NOT USE HYDRAULIC TOOLS UNDER- WATER THAT ARE NOT DESIGNATED AS AN “UNDERWATER” MODEL, OR THIS WILL RESULT IN DAMAGE TO THE TOOL.
For underwater hydraulic tools the applications are broken down into four quadrants depending on type of tool and method of operation.
The types of tools are percussive and rotational, each with different characteristics allowing for dif- ferent depth operation. With percussive tools, the nitrogen accumulator PSI must counter the in- crease in ambient pressure found at lower depths. Since there is a maximum PSI for percussive tools they are limited to certain depths. Rotational tools do not have accumulators and thus capable of deeper depths.
The methods are broken into diver operated or remote operated vehicle (ROV). ROV's can reach lower depths and with an
Operation Overview
| Percussive |
| Rotational |
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| ||
| Tools: Breakers, |
| Tools: Grinders, |
| Hammer Drills and |
| Saws, Chain Saws |
| Chipping Hammers |
| Max Depth: 1000' - |
Diver |
|
| |
Max Depth: 500' - |
| Reference hose | |
|
| ||
| limitations due to |
| sizing guide below |
| accumulator PSI |
|
|
| max (increase 40 |
|
|
| PSI for every 100') |
|
|
|
|
|
|
| Tools: Breakers, |
| Tools: Grinders, |
| Hammer Drills and |
| Saws, Chain Saws |
ROV | Chipping Hammers |
| Max Depth: 1000' - |
|
| ||
|
|
| |
| Max Depth: 500' - |
| Reference hose |
| limitations due to |
| sizing guide below |
| accumulator PSI |
|
|
| max (increase 40 |
|
|
| PSI for every 100') |
|
|
|
|
|
|
Recommended Hose Diameters
Depth (ft) | 8 GPM | 12 GPM |
100 | 5/8” | 5/8” |
300 | 3/4” | 1” |
600 | 1” | 1” |
1000 | 1” |
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