SMP LTD  - Submarine Manufacturing and Products Limited
Like SMP on
SMP on

SMP LTD - Commercial Diving Equipment & Hyperbaric Chambers

3 Man Diving Bell (SDC) 300mtr 4.7m3

3 Man Diving Bell (SDC) 300mtr 4.7m3

Open to Offers. This saturation diving bell was originally manufactured in 1984 by OME Offshore Marine Engineers.

3 Man Diving Bell (SDC) 300mtr 4.7m3

Download Product Datasheet
Click here to download product datasheet

3 Man Diving Bell (SDC) 300mtr 4.7m3
3 Man Diving Bell (SDC) 300mtr 4.7m3
3 Man Diving Bell (SDC) 300mtr 4.7m3
3 Man Diving Bell (SDC) 300mtr 4.7m3
Ref: SH104845
Add to item quote
For sales enquiries please 'Add to Quote'
or contact us / call our UK based sales team on +44 (0)1772 687775


This saturation diving bell was originally manufactured in 1984 by OME Offshore Marine Engineers.  The bell underwent a full refurbishment 2007-2008 including the re-machining of both side and bottom manways, removal and replacement of original flotation and insulation, new viewports, new internal and external outfitting.


The 3 man diving bell has a 4.7m3 internal volume and rated at 300 MSW, designed and fitted with bottom mating manway to enable the bell to be mated to the main chamber entry Lock TUP. 


The SDC is equipped with a bottom internal bayonet type door pressure retaining from both sides. In addition the bell has a side opening manway with internal and external pressure retaining doors. This allows maintenance access with the bell in the mated position on the TUP.


Diving Bell to be outfitted including:


  • 1 x Oxygen Cylinder for O2 make-up with a Tescom Positive Bias Pressure sensing regulator
  • Internal Bayonet Bottom Door
  • Internal and External Side Manway Doors
  • Heliox Cylinders for Diver 1/2 and bellman piped in separate banks, complete with Tescom Positive Bias Pressure sensing regulators on each bank
  • View ports
  • Bell secondary protective covers for view port
  • Three divers internal gas distribution, including blow down and exhaust
  • Electrical system main supply 24V DC
  • Battery pack 24V. DC Externally Mounted
  • Internal Electrical control panel Main and Emergency supply isolation and changeover.
  • Internal communication control panel
  • Oil filled Pressure Compensated junction box for the Main Bell umbilical electrical connections
  • O2 Injection Panel
  • Hot Water Distribution Manifold
  • Bell Buoyancy flotation
  • Hangers for 2 x Diver Umbilicals Internal
  • Hanger for 1 x Bellman’s Umbilical External c/w quick release
  • Three seats with restraints
  • Pipe work and valves (NPT)
  • Electrical penetrators communications and power from External Junction Box
  • 1 x CO2 Scrubber Normal Operation
  • 1 x CO2 Scrubber Emergency Operation
  • 1 x Bell Heater CW Isolation Valves
  • 1 x Sound power phone c/w Call Generator
  • 1 x Speaker bull horn
  • 1 x Call Button
  • 2 x Hyperbaric internal lights
  • 3 x Snooper 500 watts lights (external) Individually Wired

1 x Internal depth gauge

For instant service contact our sales team
Telephone +44 (0)1772 687775

Our top selling Commercial Diving Equipment

50 Litre Air Storage Cylinder with 300 bar Bullnose Valve

50 litre steel gas storage cylinder which comes complete with 300 bar bullnose valve


This is a unique range of larger inflatables that is designed primarily to carry heavy loads at planing speeds due to its patented Futura hull shape.

SMP Prothermic Underwater Cutting Rods

SMP Prothermic Underwater Cutting Rods (Boxes of 100) can be used 1000ft below the surface or by fabrication and welding companies on dry land.

AGA Interspiro Divator MK II Face Mask

The Interspiro line of diving full-face masks (FFMs) are high quality masks and have been field proven by Government, Military, and Commercial & Public Safety Teams around the world. 

SMP Single Basket LARS with Inbuilt Power Packs

SMP’s Single Basket Launch And Recovery System has been specifically designed to give a compact operating footprint to minimise the deck space required on board a vessel or barge.

C-Tecnics Two Diver Video & Diver Communications System

A Two Diver Video & Communications System that is Portable, Waterproof, Rugged & Weighs only 12.7Kg