$27.00$150.00

O-ring sealing flange for the 2″, 3″, and 4″ Watertight Enclosures. These are the second generation of flanges with a locking cord and anti-rotation feature. Compatible with dome end caps, flat end caps, and custom end caps. Includes locking cord and O-rings.

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

These flanges are not compatible with the first generation non-locking tubes.
SKU: WTE-FLANGE-VP
HS Code: 7616.99.5190

Product Description

The O-ring Flange seals to a tube on one end and to an end cap on the other. These are used with our flat end caps and dome end caps to create a high-pressure watertight interface to the enclosure tube. The flange can be used with custom made end caps as well.

These second generation flanges are anodized aluminum and include dual radial O-rings and a face seal O-ring for reliable high-pressure sealing, a locking cord gland, and an anti-rotation feature. They comes with PTFE locking cord and locking cord handles to secure the flange to the tube. These flanges are only compatible with our watertight enclosure tubes, which have precision machined features at each end to interface with the flange.

Four internal mounting holes make it easy to attach internal contents securely. This feature is used on the BlueROV2 to hold the electronics tray.

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

Tube and flange with the locking cord installed.

Product Description

The O-ring Flange seals to a tube on one end and to an end cap on the other. These are used with our flat end caps and dome end caps to create a high-pressure watertight interface to the enclosure tube. The flange can be used with custom made end caps as well.

These second generation flanges are anodized aluminum and include dual radial O-rings and a face seal O-ring for reliable high-pressure sealing, a locking cord gland, and an anti-rotation feature. They comes with PTFE locking cord and locking cord handles to secure the flange to the tube. These flanges are only compatible with our watertight enclosure tubes, which have precision machined features at each end to interface with the flange.

Four internal mounting holes make it easy to attach internal contents securely. This feature is used on the BlueROV2 to hold the electronics tray.

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

Tube and flange with the locking cord installed.
CAD model is of the 3″ O-ring flange.
  • 1 x Flange (based on selection)
  • 1 x Face Seal O-ring
  • 2 x Radial O-ring
  • 1 x PTFE Locking Cord
  • 1 x Locking Cord Handle and Set Screw
  • 1 x Single-use Packet of Molykote 111 Compound

Specifications

Series DiameterFace Seal O-ringRadial Seal O-ringFlange OD (E)Piston Diameter (F)Piston Length (G)Overall Length (H)Inner Mounting Hole Circle (J)WeightPart Number
50 mm (2")-030
Buna-N 70A
-030
Buna-N 70A
58.0 ± 0.1 mm50.95 ± 0.05 mm15.5 ± 0.1 mm21.5 ± 0.1 mm43.0 ± 0.1 mm41 gBR-100628-998
75 mm (3")-148
Buna-N 70A
-150
Buna-N 70A
88.9 ± 0.1 mm79.95 ± 0.05 mm19.1 ± 0.1 mm27.0 ± 0.1 mm68.6 ± 0.1 mm81 gBR-100647
100 mm (4")-154
Buna-N 70A
-154
Buna-N 70A
114.3 ± 0.1 mm103.95 ± 0.05 mm19.1 ± 0.1 mm27.0 ± 0.1 mm94.0 ± 0.1 mm107 gBR-100665
130 mm (5")-157
Buna-N 70A
-248
Buna-N 70A
137.7 ± 0.1 mm130.45 ± 0.05 mm28.0 ± 0.1 mm34.0 ± 0.1 mm115.0 ± 0.1 mm238 gBR-102200
150 mm (6")-162
Buna-N 70A
-255
Buna-N 70A
165.4 ± 0.1 mm156.45 ± 0.05 mm30.0 ± 0.1 mm36.0 ± 0.1 mm142.0 ± 0.1 mm308 gBR-102201
200 mm (8")-170
Buna-N 70A
-265
Buna-N 70A
215.7 ± 0.1 mm205.95 ± 0.05 mm36.0 ± 0.1 mm42.0 ± 0.1 mm186.0 ± 0.1 mm540 gBR-102202
Locking Cord Diameter (D): 2.6 ± 0.4 mm for all flange sizes
Inner Mounting Holes (I): M3x0.5 for all flange sizes

3D Models

WTE2-M-LOCKING-FLANGE-SEAL-R1 (.zip)

WTE3-M-LOCKING-FLANGE-SEAL-R1 (.zip)

WTE4-M-LOCKING-FLANGE-SEAL-R1 (.zip)

WTE5_LOCKING_FLANGE_BR-102200 (.zip)

WTE6_LOCKING_FLANGE_BR-102201 (.zip)

WTE8_LOCKING_FLANGE_BR-102202 (.zip)

Revision History

7 February 2024

  • BR-102200, 130 mm (5") - Initial release
  • BR-102201, 150 mm (6") - Initial release
  • BR-102202, 200 mm (8") - Initial release

14 June 2023

  • WTE4-M-LOCKING-FLANGE-SEAL-R1-RP SKU changed to BR-100665

8 June 2023

  • WTE3-M-LOCKING-FLANGE-SEAL-R1-RP SKU changed to BR-100647

1 June 2023

  • WTE2-M-LOCKING-FLANGE-SEAL-R2-RP SKU changed to BR-100628-998

17 May 2022

  • WTE3-M-LOCKING-FLANGE-SEAL-R1 - Initial release
  • WTE4-M-LOCKING-FLANGE-SEAL-R1 - Initial release

23 February 2022

  • Single-use packet of Molykote 111 included in contents

19 November 2019

  • WTE2-M-LOCKING-FLANGE-SEAL-R1 - 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!

Support

Blue Robotics Forums – Watertight Enclosures