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2.5L Compensator Bottle

2.5L Compensator Bottle

Compensator Bottle
The 2.5 litre Compensator Bottle controls the compensation oil used to maintain compensation oil pressure. The Compensator Bottle acts as a spring loaded accumulator to maintain a compensated oil pressure of 3.5psi (0.24bar), above ambient depth pressure at all times and will also allow for any temperature changes.
The compensated pressure is maintained slightly higher than the ambient water pressure, regardless of depth, to prevent possible intrusion of seawater.
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. The Compensator Bottle can be fitted with a sensor for measuring fluid level.
TMT can customise the tool to suit your requirements.


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







Dimensions ∅181 x430Lmm
Weight in Air 6.4kg
Weight in Seawater 3.5kg
Pressure Rating 3.5psi (0.24bar)
Volume 2.82L
Depth Rating Unlimited