TMT 2.3L Compensator Bottle

TMT 2.3L Compensator Bottle

Compensator Bottle
The TMT 2.3 litre Compensator Bottle is used to maintain compensatio oil pressure. The Compensator Bottle acts as a spring-loaded accumulator, to maintain a compensated oil pressure of 5psi (0.34bar) above ambient depth pressure at all times and will also allow for any temperature changes.
Many ROV electrical system components such as; PCBs, resistors and transformers can operate in oil; thus, reducing the number of one-atmosphere pressure bottles required. Another advantage is for where electrics-control mate with hydraulic power such as valve packs; the solenoids can be contained within an insulated oil environment and will not short circuit.
Since the compensated pressure is maintained above ambient water pressure regardless of depth, it can prevent possible seawater intrusion.
The Compensator Bottle is easy to fill or empty, through a hand operated pump bottle and quick connect/disconnect fittings.
A pressure relief valve is fitted, preventing over-pressure.
TMT can customise the tool to suit your requirements.


  • Easy to install and remove
  • Corrosion resistant materials
  • Spring load
  • Pressure relief valve
  • Field proven


Dimensions 265L x200W x225Hmm
Weight in Air 3.8kg
Weight in Seawater 1.7kg
Relief Valve 10psi (0.34bar)
Connector 1/2" UNO
Depth Rating Unlimited