Blue Robotics

Watertight Enclosure Tubes - 50 mm (2") Aluminum - 300 mm (11.8") - 950m

£65.99

Tubes for the 2″, 3″, 4″, 5″, 6″, and 8″ 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 1000 meters.

£65.99

Product Description

These 2″, 3″, 4″, 5″, 6″, and 8″ 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.

Technical Specifications

Series Diameter	Tube Material/Finish	Tube ID (A)	Tube OD (B)	Overall Length¹ (C)	Weight	Depth Rating ²	Part Number
50 mm (2")	Aluminum 6061-T6, type III anodized	50.0 ± 0.5 mm	58.0 ± 0.2 mm	100 mm	169 g	1000 m	BR-100534-100
	Aluminum 6061-T6, type III anodized			150 mm	261 g		BR-100534-150
	Aluminum 6061-T6, type II anodized			300 mm	536 g		BR-100534-300
	Cast Acrylic	49.5 ± 1.5 mm	58.0 ± 0.5 mm	100 mm	75 g	225 m	BR-100230-101
				150 mm	115 g	130 m	BR-100230-151
				300 mm	238 g	100 m	BR-100230-301
75 mm (3")	Aluminum 6061-T6, type III anodized	80.14 ± 0.20 mm	86.5 ± 0.3 mm	150 mm	328 g	1000 m	BR-100611-150
	Aluminum 6061-T6, type III anodized			240 mm	530 g	1000 m	BR-100611-240
	Aluminum 6061-T6, type III anodized			300 mm	665 g	900 m	BR-100611-300
	Aluminum 6061-T6, type II anodized			400 mm	890 g	750 m	BR-100611-400
	Cast Acrylic	76.2 ± 2.0 mm	88.9 ± 0.7 mm	150 mm	264 g	275 m	BR-102649-150
				240 mm	442 g	150 m	BR-102649-240
				300 mm	560 g	135 m	BR-102649-300
				400 mm	758 g	120 m	BR-102649-400
100 mm (4")	Aluminum 6061-T6, type III anodized	104.16 ± 0.20 mm	112.0 ± 0.3 mm	200 mm	707 g	1000 m	BR-100195-200
	Aluminum 6061-T6, type II anodized			300 mm	1066 g	1000 m	BR-100195-300
	Aluminum 6061-T6, type II anodized			400 mm	1426 g	800 m	BR-100195-400
	Cast Acrylic	101.6 ± 2.1 mm	114.3 ± 0.8 mm	200 mm	488 g	140 m	BR-101052-200
				300 mm	746 g	100 m	BR-101052-300
				400 mm	1004 g	60 m	BR-101052-400
130 mm (5")	Aluminum 6061-T6, type II anodized	130 ± 0.5 mm	138.7 ± 0.3 mm	300 mm	1450 g	1000 m	BR-101409-300
130 mm (5")	Aluminum 6061-T6, type III anodized	130 ± 0.5 mm	138.7 ± 0.3 mm	500 mm	2441 g	500 m	BR-101409-500
150 mm (6")	Aluminum 6061-T6, type III anodized	150 ± 0.5 mm	163.9 ± 0.3 mm	300 mm	2510 g	1000 m	BR-101411-300
150 mm (6")	Aluminum 6061-T6, type II anodized	150 ± 0.5 mm	163.9 ± 0.3 mm	500 mm	4360 g	1000 m	BR-101411-500
200 mm (8")	Aluminum 6061-T6, type II anodized	200 ± 0.5 mm	214.2 ± 0.3 mm	300 mm	3420 g	1000 m	BR-101412-300
200 mm (8")	Aluminum 6061-T6, type II anodized	200 ± 0.5 mm	214.2 ± 0.3 mm	500 mm	5915 g	1000 m	BR-101412-500
¹ Overall length tolerance is ± 0.5 mm. ² 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.