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DATASHEET SEMICLOSED REBREATHER

Siebe Gorman NEMBA

Date: 9 January 2005

NEtherlands Mixed gas Breathing Apparatus

Database semi closed rebreathers by: J.W. Bech

Manufacturer

Siebe Gorman

 

Model

NEMBA

 

Land of origin

UK

Production for Dutch Gov.

Design year

1970 (?)

Design by Dutch Marine

Special Note: 

 

 

User group

Military

 

Magnetic caracteristics

Confom Stanag 1097, 1131

 

Part no:

 

 

Working principle

Constant Mass Flow

By restriction

Gas type

Nitrox standard Nato mix

 

Gasmix Nato type

% Oxygen

% Nitrogen

Flow

Worktime

Depth

B

60

40

4,3

176

24 m

C

40

60

8

95

24-42m

D

32,5

67,5

12,8

59

42-54 m

Intended use

Mine disposal

All parts designed in non-magnetic materials

Dimensions LxWxH

780 x 465 x 200 mm

 

Device weight

37 kg

 

Buoyancy in water

Approx 400 N

 

Usage time

59/95/176 min

 

Max depth

54 mtrs

 

Used material for housing/backplate

Reinforced glasfibre

 

Pressure reducer

Membrane type

 

Connection reducer – bottles

G 5/8” (?)

 

Supply pressure

200 bar, minimum 30 bar

 

Metering

4,3/8/12,8 l/min

 

Manual bypass

Yes

“omloopklep”

Pressure gauge

0 – 200 bar

Manometer is magnetic and has to be removed for mineclearing

Cylinders

2 x 2,65-2,7 litre

 

Cylinder material

Aluminium

 

Cylinder charging pressure

200 bar

 

Cylinder thread

G 5/8”

 

Valve

 

 

Designed for gasmix

B,C,D Nato

 

Co2 absorption cartridge capacity

3 Kg Protosorb

 

Co2 absorption cartridge rechargeable

Yes

 

Co2 absorption cartridge storage

 

 

Co2 absorption cartridge storage

 

 

Connections Co2 cartridge

 

 

Absorption time

3 hours

 

Grade

4-8 mesh Tyler

2,4 – 5 mm

Breathing bag material

Sturdy cotton fabric

Rubber on one site

Volume

Inhale 2,5 ltr Exhale 3 ltr

 

Relief valve

Range 4 – 28 cm WK

3,92 – 27,45 mbar adjust.

Mouthpiece

Valve type

 

Operating temperature

 

 

Magnetic signature

Stanag

 

Colour

Black

 

Worn

On the back

 

FFM attached

Yes

 

 

 

 

Extra info:

 

 

Additional information:

 

 

Email address owner:

 

 

 

 

 

If you have any information to add this sheet please mail it to jw.bech@quicknet.nl References to source and names will always be added!  

 

Info found:

 

Origin: http://www.therebreathersite.nl

 

Info:

 

  Many thanks to Martin Bakker helping me to find the original manual!

 

 

 

 

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