Coupler Flanges

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Price range: $40.00 through $60.00

Coupler flange for the 2″, 3″, and 4″ Watertight Enclosures. These flanges allow you to combine multiple tubes for greater internal length. Not compatible with the first generation non-locking tubes.

If you’re looking for a complete underwater enclosure, check out the Watertight Enclosure Configuration page. Simply add an additional tube and this coupler flange to your configured enclosure for a complete kit.

Inner Diameter

Clear

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SKU: COUPLER-FLANGE-VP Category: Cylindrical Locking Series (2–8”)
HS Code: 7616.99.5190
Country of Origin: China

Description

Product Description

The Coupler Flange seals to a tube on both ends. These are used with our watertight enclosure tubes to connect multiple enclosures.

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

Internal RAILS-compatible mounting holes make it easy to attach internal components securely

coupler-flange-model-1 — Tubes and coupler flange with the locking cords installed.

Product Description

The Coupler Flange seals to a tube on both ends. These are used with our watertight enclosure tubes to connect multiple enclosures.

Internal RAILS-compatible mounting holes make it easy to attach internal components securely

3D Product View

CAD model is of the 4″ Coupler Flange.

1 x Flange (based on selection)
4 x Radial O-ring
2 x PTFE Locking Cord
2 x Locking Cord Handle and Set Screw
1 x Single-use Packet of Molykote 111 Compound

Technical Details

Specifications

Series Diameter	Radial Seal O-ring	Flange OD (E)	Piston Diameter (F)	Piston Length (G)	Overall Length (H)	Inner Mounting Hole Circle (J)	Weight	Part Number
50 mm (2")	-031 Buna-N 70A	58.0 ± 0.1 mm	50.95 ± 0.05 mm	15.5 ± 0.1 mm	43 ± 0.1 mm	43.0 ± 0.1 mm	60 g	BR-106247
75 mm (3")	-150 Buna-N 70A	88.9 ± 0.1 mm	79.95 ± 0.05 mm	19.1 ± 0.1 mm	54 ± 0.1 mm	68.6 ± 0.1 mm	138 g	BR-106256
100 mm (4")	-154 Buna-N 70A	114.3 ± 0.1 mm	103.95 ± 0.05 mm	19.1 ± 0.1 mm	54 ± 0.1 mm	94.0 ± 0.1 mm	189 g	BR-106257
Material: Aluminum 6061-T6, type III anodized for all flanges
Locking Cord Diameter (D): 2.6 ± 0.4 mm for all flange sizes
Inner Mounting Holes (I): M3x0.5 for all flange sizes