Instrument Housings
  • Transparent, lightweight, cost effective solution for housing critical instrumentation.
  • Can be fully integrated with our Hard Hats.
  • Available in 13" and 17" sizes.
  • Titanium port option for any housing that is opened frequently to facilitate opening and closing.
Detailed Information Below

Instrument Housings Technical Specs

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Instrument Housings

Teledyne Benthos’ patented VacuSealed glass floats, and instrument housings are manufactured from precision-molded spheres to our exacting specifications. The edge of each hemisphere is ground flat, to extreme tolerances, in order to facilitate a secure, long-lasting vacuum within each sphere.

Vacuum Ports

A titanium vacuum port (Model 204-VPT) can be installed in a glass instrument housing to facilitate opening and closing the sphere. The vacuum port option is recommended for any housing that will be opened frequently. Glass spheres are extremely strong under pressure and are relatively inexpensive when compared to other deep sea housings. Additionally, glass is not susceptible to the corrosion or degradation that housing products, made of other materials, exhibit when exposed to harsh ocean environments. Glass is lighter than most metals and the net buoyancy is greater than their weight in air. Glass is extremely versatile as well. Teledyne Benthos can drill up to 20 holes in each glass sphere for the installation of penetrators, providing access to instrumentation which can be mounted inside.

(C-204-44) 2040-13H; Glass Instrument Housing-13” (33 cm). (C-204-45) 2040-17H; Glass Instrument Housing-17” (43.2 cm).

Specification Description
TYPE

Low expansion borosilicate

THERMAL COEFFICIENT OF EXPANSION

38x10-7/°C

SPECIFIC GRAVITY

​2.22

YOUNG'S MODULUS

62 GPa (9x106 P.S.I.)

POISSON'S RATIO

​0.20

REFRACTIVE INDEX

1.48

THERMAL CONDUCTIVITY

0.0023 calorie cm/cm2

sec°C

SPECIFIC HEAT

0.18 calorie/g°C

DIMENSIONS, WEIGHT, AND DEPTH DATA: SPHERE MODEL 2040-13V*
  • Outside Diameter: 33 cm (13 in)
  • Inside Diameter: 30.5 cm (12 in)
  • Weight in Air: 9.07 kg (20 lbs)
  • Net Buoyancy: 10.4 kg (23 lbs)
  • Depth Rating; 9000 m (29,500 ft)

*13” spheres available with improved optical transmission profiles, low potassium and low photonic radiation

DIMENSIONS, WEIGHT, AND DEPTH DATA: SPHERE MODEL 2040-17V
  • Outside Diameter: 43.2 cm (17 in)
  • Inside Diameter: 40.4 cm (15.9 in)
  • Weight in Air: 17.7 kg (39 lbs)
  • Net Buoyancy: 25.4 kg (56 lbs)
  • Depth Rating; 6700 m (22,000 ft)
INSTRUMENT HOUSING OPTIONS
  • (B-204-78) Single Neoprene Penetrator, Installed
  • (B-204-86) 204-VPT; Titanium Vacuum Port, Installed
  • (B-204-48-1) 204-DHO; Glass Hole Drilling to 1/2” Width Ground Flat
  • (B-204-48-2) 204-DHO; Glass Hole Drilling Greater Than 1/2” Width Ground Flat
SPARE PARTS AND ACCESSORIES
  • (C-189-18-5) 204N-17; Nylon Net Bag for 17” Spheres
  • (0900-024) 204-SS; Sealant Strip for Glass Spheres. 9.1 M (25 Ft. Roll)
  • (0903-013) 204-T; Tape; Black for Glass Spheres. 30.5 M (100 Ft Roll) Wide Version
  • ​Underwater protection for sensitive equipment
Teledyne Benthos / 49 Edgerton Drive North Falmouth, MA 02556 USA / ISO 9001 Certificate / Terms and Conditions
Phone: (508) 563-1000 / Fax: (508) 563-6444
Copyright 2017 Teledyne Technologies Incorporated. All rights reserved.