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The WetLink Penetrator (WLP) is our patent-pending, next-generation solution for low-cost, high pressure, high reliability sealing of electrical cables as they pass into enclosures or other devices. It’s rated to a depth of 950 meters (3,116 feet) and compared to subsea connectors or penetrators, the WetLink Penetrator is a fraction of the cost while offering validated reliability that you can count on.
The WetLink Penetrator can be installed in seconds and doesn’t require any adhesives, potting compounds, or rubber molding. It’s the easiest to use solution out there!
The concept behind the WetLink Penetrator is simple: a cable and rubber seal are installed into a bulkhead and then compressed such that a high-pressure seal is formed. That pressure also holds the cable in place and strain relieves it against it being tugged or pulled out.
Despite the simplicity of the concept, we’ve put a lot of attention into the details to ensure absolute reliability. The WetLink Penetrator was put through a rigorous testing and validation process in which we tested thousands of samples through extreme conditions: high pressure, hot and cold temperatures, high electrical current, accelerated aging, and mechanical strain. Our results demonstrate reliability that you can count on in your application.
The WetLink Penetrator can be used on a variety of cables, but the design has been officially tested and validated on specific cables. Our official specifications only apply when used on tested and validated cables, which you can see in the Technical Details tab.
The WetLink Penetrator can be assembled with typical hand tools, but we recommend the WLP Wrench and WLP Assembly Block to ease with assembly, especially if you’ll be putting together more than a few!
Performance Characteristics
|
Parameter |
Value |
|
Maximum Tested Depth (seawater)¹ |
950 m / 3116 ft |
|
Design Lifetime¹ ² |
3 years or 500 cycles to rated depth |
|
Reuse Recommendations (link) |
|
|
Bulkhead and Plug |
reusable up to 3 times |
|
Seal |
not reusable |
|
¹ For reference only, performance may vary depending on application and cable construction, it is the responsibility of the customer to determine suitability for their application. |
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Size Index
|
Seal Size |
Bulkhead Sizes |
Conductor Bore Diameter |
Plug Compression |
Jacket Diameter Range |
Part Number |
Diagram |
|
|
|
4.5 |
M06 |
3.3 mm |
High (HC) |
4.0 ± 0.3 mm |
|
|
|
Low (LC) |
4.5 ± 0.3 mm |
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|
5.5 |
M10 |
4.0 mm |
High (HC) |
5.0 ± 0.3 mm |
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|
Low (LC) |
5.5 ± 0.3 mm |
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|
6.5 |
M10 |
4.8 mm |
High (HC) |
6.0 ± 0.3 mm |
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|
Low (LC) |
6.5 ± 0.3 mm |
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|
7.5 |
M10 |
5.7 mm |
High (HC) |
7.0 ± 0.3 mm |
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|
Low (LC) |
7.5 ± 0.3 mm |
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|
8.5 |
M10 |
6.0 mm |
High (HC) |
8.0 ± 0.3 mm |
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|
Low (LC) |
8.5 ± 0.3 mm |
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|
9.5 |
M14 |
7.5 mm |
High (HC) |
9.0 ± 0.3 mm |
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|
Low (LC) |
9.5 ± 0.3 mm |
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Tools
|
Seal Size |
Bulkhead Size |
Bulkhead Wrench |
Bulkhead/Nut Flat Size |
Bulkhead Installation Torque |
Plug Wrench |
Plug Hex Size |
Plug Installation Torque |
|
4.5 |
M06 |
12 mm |
1 N⋅m |
11 mm |
14 N⋅m |
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|
4.5 |
M10 |
16 mm |
3.5 N⋅m |
11 mm |
14 N⋅m |
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5.5, 6.5, 7.5, 8.5 |
M10 |
16 mm |
3.5 N⋅m |
14 mm |
14 N⋅m |
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|
9.5 |
M14 |
20 mm |
3.5 N⋅m |
18 mm |
20 N⋅m |
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* The WetLink Penetrator Assembly Block is compatible with all WetLink Penetrator sizes |
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Tested Cables
|
Compatible WLP Part Number |
Cable Part Name / Number |
Manufacturer |
Application |
Jacket Diameter |
Jacket Material |
Conductors |
Tested Current¹ |
Nominal Voltage |
Max Temp Recommended² |
|
Fathom Slim Tether |
Blue Robotics |
Tether |
4.0 mm |
PUR Foam |
1x UTP 26AWG |
- |
- |
50°C |
|
|
Lumen/Gripper Cable |
Blue Robotics |
Power / PWM |
4.5 mm |
PUR |
3x 22AWG |
- |
- |
60°C |
|
|
Ping Cable |
Blue Robotics |
Power / Serial |
4.5 mm |
PUR |
4x 24AWG |
- |
- |
60°C |
|
|
Ping360 Cable |
Blue Robotics |
Power / Ethernet |
4.7 mm |
PUR |
3x UTP 28AWG |
- |
- |
50°C |
|
|
IGUS |
Power / Signal |
5.0 mm |
TPE |
6x 24AWG |
- |
300V |
60°C |
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|
LAPP |
Cat5e |
5.6 mm |
PUR |
2x SFTP 26AWG |
- |
125V |
60°C |
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|
LAPP |
Power / Signal |
5.8 mm |
PVC |
6x 22AWG |
- |
300V |
60°C |
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|
T200 Thruster Cable |
Blue Robotics |
Power |
6.4 mm |
PUR |
3x 16AWG |
48A |
- |
60°C |
|
|
LAPP |
Cat5e |
6.3 mm |
PUR |
4x SFTP 26AWG |
- |
1000V |
60°C |
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|
Fathom ROV Tether |
Blue Robotics |
Cat5 / Tether |
7.8 mm |
PUR Foam |
4x UTP 26AWG |
- |
- |
50°C |
|
|
Blue Robotics |
Cat5 + Power |
7.5 mm |
PUR |
4x UTP 26AWG + 2x 22AWG |
- |
- |
60°C |
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|
IGUS |
Power / Signal |
7.7 mm |
TPE |
12x 24AWG |
- |
300V |
60°C |
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|
High Power Cable |
Blue Robotics |
Power |
8.3 mm |
PUR |
2x 12AWG |
60A |
- |
60°C |
|
|
¹ Current ratings evaluated at ambient temperatures in water. |
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Physical Properties
|
Bulkhead Size |
M06 |
M10 |
M14 |
|
Seal Sizes (A) |
4.5 |
4.5, 5.5, 6.5, 7.5, 8.5 |
9.5 |
|
Bulkhead Thread (B) |
M6 x 1 |
M10 x 1.5 |
M14 x 1.5 |
|
Bulkhead Thread Length (C) |
10 mm |
20 mm |
25 mm |
|
Recommended Bulkhead Through Hole Size |
6.2 mm |
10.2 mm |
14.2 mm |
|
Assembled Height from Endcap (D) |
23.5 mm |
18 - 26 mm |
23 mm |
|
Overall Outer Diameter (E) |
13 mm |
18 mm |
22 mm |
|
O-ring Size (F) |
1.5 x 7 mm Buna-N 70A |
AS568-013 Buna-N 70A |
1.5x15 mm Buna-N 70A |
|
Nut Height (G) |
4 mm |
8 mm |
8 mm |
|
Nut Slot Width (H) |
3.5 mm |
5 mm |
9 mm |
|
Assembled air weight (no cable) |
7.6 g |
13.9 - 15.6 g |
24.9 g |
|
Assembled water weight (no cable) |
5.1 g |
10.2 - 10.7 g |
16.4 g |
|
Seal Material |
FKM |
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|
Seal Material Temperature Range |
-25°C to 200°C |
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|
Bulkhead / Plug Material |
7075-T6 Aluminum, Anodized |
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Test Procedure
|
Parameter |
Value |
|
Minimum Number of Test Samples |
36 |
|
Test Pressure |
950 msw |
|
Number of Cycles |
500 cycles |
|
Water Temperatures at Pressure |
2°C to 40°C |
|
Temperature Shock Cycling in Air |
-30°C to 70°C |
|
Cable Axial Strain (10 cycles) |
3.5 to 7.5 kg |
|
Cable Radial & Torsional Straining |
Yes |
|
Tested Current at Pressure (if applicable) |
Yes |
|
1000V Hipot Test & Continuity Test |
Yes |
|
Accelerated Age Test |
Yes |
|
*Test values shown for reference only, it is the responsibility of the customer to determine suitability for their application. |
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