Latest in floating roof tank seals Latest in floating roof tank seals saitools (Mechanical) (OP) 25 Feb 01 04:23 would like to know the latest trends in floating roof tank seals for VOC emission controlThanksRajan RE: Latest in floating roof tank seals mbgupta (Mechanical) 27 Feb 02 00:20 YES I WOULD LIKE TO KNOW ABOUT LATEST TRENDS IN FLOATING ROOF TANK SEALS RE: Latest in floating roof tank seals Inspector_1998 (visitor) 27 Mar 02 02:21 Would like to know the difference between foam seals & mechanical seals. Are they same & or one is the subset of other? RE: Latest in floating roof tank seals sheshagiri (Mechanical) 18 Jun 02 07:46 I would like to know how to stop leakage without emptying the floating roof tank. We have found leakages in 2 compartment with a flow of 400 ml. We are not able to completely dry the compartment. So let us have a solutionThanksSheshagiri RE: Latest in floating roof tank seals IFRs (Petroleum) 22 Nov 02 13:38 For aluminum and steel internal floating roofs, double shoe seals are becoming "hot", liquid mounted log seals are "cold" and wiper seals are "cool". Sleeves around gauge poles are becoming common as are floats inside the gauge poles.Foam seals are basically a cotaed fabric bag surrounding a urethane type foam that is squeezed into the space between the floating roof and the tank shell, usually halfway into the liquid. Mechanical seals utilize a segmented band of thin gauge steel plate pressed against the tank shell by some mechanical linkage and springs with a coated fabric attached between the steel plate and the floating roof.Leakage inside a floating roof is hard to fix in service due to the hazards of the confined space. Since leaking often reduces buoyancy, the floating roof may sink or hang up. Take the tank out of service QUICKLY !!