TMT Marine Growth Cover - Class 5

TMT Marine Growth Cover - Class 5

Marine Growth Cover
The TMT Class 5 Marine Growth Cover (MGC) is an economical way of protecting subsea XT rotary intervention valve buckets to standard and ISO 13628-8 high torque receptacles, from excessive marine growth build up.
The non-metallic plug is fitted with a nitrile ring to retain the MGC in the receptacle. The TMT MGC isolates the valve bucket from the marine enviroment. The physical presence of the plug inhibits the buildup of marine growth and helps to eliminate time consuming cleaning processes that could be required before a torque tool can re-enter the valve bucket.
TMT can customise the tool to suit your requirements. All TMT MGCs are designed to last over 40 years in the subsea environment.


  • Easy to install and remove
  • Corrosion resistant materials
  • Titanium Bolts
  • Field proven
  • Standard Receptacles include ISO 13628-8


Dimensions ∅186 x258Hmm
Weight in Air 6.9kg
Weight in Seawater 1.9kg