TMT Marine Growth Cover - Hot Stab

TMT Marine Growth Cover - Hot Stab

Marine Growth Cover
The TMT Male ISO Type B Hot Stab Marine Growth Cover (MGC) is an economical way of protecting subsea Female ISO 13628-8 hot stab receptacles, from excessive marine growth build up.  
The non-metallic plug is fitted with O-rings for retention. The use of polyurethane provides compliance for the handle to allow for easy subsea installation. The TMT MGC isolates the receptacle from the marine environment. 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 hot stab can re-enter the valve receptacle.
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 Rod
  • Field proven
  • Standard Recepacles include ISO 13628-8


Dimensions ∅42.7 x441Lmm
Weight in Air 3.6kg
Weight in Seawater 0.33kg