$24.00$386.00

Tubes for the 2″, 3″, and 4″ Series Watertight Enclosures, available in a variety of lengths and in clear cast acrylic plastic and aluminum materials. These are the second generation of these tubes with precision machined O-ring interfaces, a locking cord, and anti-rotation feature. Rated to depths up to 950 meters.

If you’re looking for a complete underwater enclosure, check out the Watertight Enclosure Configuration page.

These tubes are not compatible with the first generation non-locking flanges.
Because of the precision machined interface, the tubes are no longer available in custom lengths.

Choose a diameter, material, and length:

SKU: WTE-LOCKING-TUBE-R1-VP
HS Code: 3917.32.0050

Product Description

These 2″, 3″, and 4″ locking tubes are available in a variety of lengths and in both cast acrylic plastic and anodized 6061-T6 aluminum. These tubes are a substantial upgrade over the first generation of watertight enclosure tubes.

Both the acrylic and aluminum tube options have precision machined O-ring interfaces at each end, ensuring a consistent and reliable fit with the sealing flange. A smooth surface finish ensures proper sealing between the O-ring flange and the tube. Also machined into the ends is a gland for a locking cord and a slot for cord insertion. You can read more about the locking feature and see a diagram of how it works on the main watertight enclosure product page.

The slot for cord insertion doubles as an anti-rotation feature, mating with a feature on the flange. This keeps the flange in a consistent orientation with the tube and prevents the user from rotating the flange and damaging anything inside the enclosure.

The tubes are available individually here, but you can configure a complete watertight enclosure from the watertight enclosure configuration page.

Because of the precision machined interface, the tubes are no longer available in custom lengths.

Precision machined tube ends.
Tube with flange installed.

Product Description

These 2″, 3″, and 4″ locking tubes are available in a variety of lengths and in both cast acrylic plastic and anodized 6061-T6 aluminum. These tubes are a substantial upgrade over the first generation of watertight enclosure tubes.

Both the acrylic and aluminum tube options have precision machined O-ring interfaces at each end, ensuring a consistent and reliable fit with the sealing flange. A smooth surface finish ensures proper sealing between the O-ring flange and the tube. Also machined into the ends is a gland for a locking cord and a slot for cord insertion. You can read more about the locking feature and see a diagram of how it works on the main watertight enclosure product page.

The slot for cord insertion doubles as an anti-rotation feature, mating with a feature on the flange. This keeps the flange in a consistent orientation with the tube and prevents the user from rotating the flange and damaging anything inside the enclosure.

The tubes are available individually here, but you can configure a complete watertight enclosure from the watertight enclosure configuration page.

Because of the precision machined interface, the tubes are no longer available in custom lengths.

Precision machined tube ends.
Tube with flange installed.
CAD models are of the 3″ Series 240mm tubes.
  • 1 x Tube (based on selection)

Specifications

 Drawing
Series DiameterTube Material/FinishTube ID (A)Tube OD (B)Overall Length¹ (C)WeightDepth RatingPart Number
50 mm
(2")
6061-T6 Aluminum, Type II Anodized50.0 ± 0.5 mm58.0 ± 0.2 mm100 mm169 g950 mBR-100534-100
150 mm261 gBR-100534-150
300 mm536 gBR-100534-300
Cast Acrylic49.5 ± 1.5 mm58.0 ± 0.5 mm
100 mm75 g400 m*BR-100230-101
150 mm115 g200 m*BR-100230-151
300 mm238 g150 m*BR-100230-301
75 mm
(3")
6061-T6 Aluminum, Type II Anodized80.14 ± 0.20 mm86.5 ± 0.3 mm150 mm328 g950 mBR-100611-150
240 mm530 gBR-100611-240
300 mm665 gBR-100611-300
400 mm890 gBR-100611-400
Cast Acrylic76.2 ± 2.0 mm88.9 ± 0.7 mm150 mm264 g300 m*BR-101066
240 mm442 g200 m*BR-100352
300 mm560 g150 m*BR-100895
400 mm758 g125 m*BR-100293
100 mm
(4")
6061-T6 Aluminum, Type II Anodized104.16 ± 0.20 mm112.0 ± 0.3 mm200 mm707 g950 mBR-100195-200
300 mm1066 gBR-100195-300
400 mm1426 gBR-100195-400
Cast Acrylic101.6 ± 2.1 mm114.3 ± 0.8 mm200 mm488 g150 m*BR-101052-200
300 mm746 g100 m*BR-101052-300
400 mm1004 g70 m*BR-101052-400
¹ Overall length tolerance is ± 0.5 mm.
* The depth ratings for cast acrylic components are applicable only for short-term submersions lasting less than two weeks. For longer submersion, we suggest using aluminum components only.

3D Models

WTE2-P-LOCKING-TUBE-X-R1 (.zip)

WTE2-M-LOCKING-TUBE-X-R1 (.zip)

WTE3-P-LOCKING-TUBE-X-R2 (.zip)

WTE3-M-LOCKING-TUBE-X-R2 (.zip)

WTE4-P-LOCKING-TUBE-X-R2 (.zip)

WTE4-M-LOCKING-TUBE-X-R2 (.zip)

Revision History

14 June 2023

  • WTE4-M-LOCKING-TUBE-200-R2-RP SKU changed to BR-100195-200
  • WTE4-M-LOCKING-TUBE-300-R2-RP SKU changed to BR-100195-300
  • WTE4-M-LOCKING-TUBE-400-R2-RP SKU changed to BR-100195-400
  • WTE4-P-LOCKING-TUBE-200-R2-RP SKU changed to BR-101052-200
  • WTE4-P-LOCKING-TUBE-300-R2-RP SKU changed to BR-101052-300
  • WTE4-P-LOCKING-TUBE-400-R2-RP SKU changed to BR-101052-400

8 June 2023

  • WTE3-P-LOCKING-TUBE-150-R2-RP SKU changed to BR-101066
  • WTE3-P-LOCKING-TUBE-240-R2-RP SKU changed to BR-100352
  • WTE3-P-LOCKING-TUBE-300-R2-RP SKU changed to BR-100895
  • WTE3-P-LOCKING-TUBE-400-R2-RP SKU changed to BR-100293
  • WTE3-M-LOCKING-TUBE-150-R2-RP SKU changed to BR-100611-150
  • WTE3-M-LOCKING-TUBE-240-R2-RP SKU changed to BR-100611-240
  • WTE3-M-LOCKING-TUBE-300-R2-RP SKU changed to BR-100611-300
  • WTE3-M-LOCKING-TUBE-400-R2-RP SKU changed to BR-100611-400

1 June 2023

  • WTE2-P-LOCKING-TUBE-100-R1-RP SKU changed to BR-100230-101
  • WTE2-P-LOCKING-TUBE-150-R1-RP SKU changed to BR-100230-151
  • WTE2-P-LOCKING-TUBE-300-R1-RP SKU changed to BR-100230-301
  • WTE2-M-LOCKING-TUBE-100-R2-RP SKU changed to BR-100534-100
  • WTE2-M-LOCKING-TUBE-150-R2-RP SKU changed to BR-100534-150
  • WTE2-M-LOCKING-TUBE-300-R2-RP SKU changed to BR-100534-300

18 May 2022

  • WTE3-P-LOCKING-TUBE-150-R2 - Initial release
  • WTE3-P-LOCKING-TUBE-240-R2 - Initial release
  • WTE3-P-LOCKING-TUBE-300-R2 - Initial release
  • WTE3-P-LOCKING-TUBE-400-R2 - Initial release
  • WTE3-M-LOCKING-TUBE-150-R2 - Initial release
  • WTE3-M-LOCKING-TUBE-240-R2 - Initial release
  • WTE3-M-LOCKING-TUBE-300-R2 - Initial release
  • WTE3-M-LOCKING-TUBE-400-R2 - Initial release
  • WTE4-P-LOCKING-TUBE-200-R2 - Initial release
  • WTE4-P-LOCKING-TUBE-300-R2 - Initial release
  • WTE4-P-LOCKING-TUBE-400-R2 - Initial release
  • WTE4-M-LOCKING-TUBE-200-R2 - Initial release
  • WTE4-M-LOCKING-TUBE-300-R2 - Initial release
  • WTE4-M-LOCKING-TUBE-400-R2 - Initial release
Watertight Enclosure (WTE) User Guide
Learn how to assemble and use a Watertight Enclosure!
Pressure Relief Valve Installation and Usage
Learn how to install the PRV on your watertight enclosure and use its related accessories!
Using the Vacuum Plug and Hand Pump
Ensure the O-ring seals are good on our WTE with this quick test!

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Blue Robotics Forums - Watertight Enclosures

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