DESIGN OF THE SEALAB II HABITAT 



47 



SCRUBBER - FILTER 

 EXHAUST PLENUM- 



HELIUM MAKE-UP-^ 



3000 PSI 



H.P.^UP. 



0-300 PSI 



GAS CONTROL 

 PANEL 



c-^ 



PO2 SENSOR 

 t 



GAS FLOW 



-yt K^ 



-STUFFING TUBE 



cz> 



a 



szz> 



a 



'^— HULL (BOTTOM) 



O 





a 



o. 



a 



o 



He STORAGE, E X T E RN AL, 10 -1300 CU FT 

 BOTTLES ON MANIFOLD 



<Z3 



3 



3 



<pCZI5 



Fig. Z7. Sealab II helium system 



Bibb System 



The Bibb system is in accordance with Fig. 28. The three external storage bottles are 

 piped to a common manifold. During operation all three bottles were "on line" at all times. This 

 system is designed to provide emergency breathing gases (premixed) in the event the Sealab 

 atmosphere becomes contaminated. It will provide approximately 43 minutes breathing time 

 for ten aquanauts. Internal manifolding shall be installed to provide quick- connective outlets 

 (female or socket) as follows: 



10 - berthing space 



4 - galley space 



4 - lab space 



10 - entry way 



Ten "Calypso" Model No. 1050 single-hose scuba rigs are provided for use with the Bibb 

 system. These equipments were modified by removal of the first-stage pressure regulator and 

 the installation of a quick- connective fitting (male or plug end) to suit quick- connective fittings 

 installed in Sealab. Note: The first-stage regulators removed from the Calypso rigs are to be 

 retained for installation on emergency scuba bottles. 



