sealmaster® primary & secondary floating roof seal systems - HMT

SEALMASTER ® PRIMARY & SECONDARYFLOATING ROOF SEAL SYSTEMSThe SealMaster® floating roof seal system was developed over25 years ago with the goal of making a seal that adjusts to the irregularities of tanks whileremaining gas tight and virtually maintenance free. The solution is the SealMaster® sealsystem.Key user benefits:Best available technology for emissionsand product loss reduction — designed withguidance from EEMUA 159, standard workingrange of R(-X/+3X), highest BREF scoring andbest Kra loss factor per EPA chapter 42Designed to remain in contact with the tank atall times, regardless of structural orenvironmental changes — the R(-X/+3X) designworking range feature is an HMT innovation.Under all circumstances the SealMaster® rim sealwill stay in contact with the tank shellFlame Retardant— flame retardant membranesunder guidance from DIN 22100/22188Complete product compatibility — allconstruction materials are selected to becompatible with the stored productKey design features: Materials are product and UV resistant Sliding parts in contact with the tank shellare wear resistant Centers the floating roof Effectively dampens horizontal movement ofthe floating roof Has an adequate working range to handle allpotential tank irregularities R (-X/+3X) Flame retardant Prevents ingress of rain water Secondary seal has a very low profile,allowing more filling capacity Gas-tight certification availableWorry-free operation — centers the floatingroof and dampens horizontal roof movementso the floating roof will not be blocked and therim seal does not get squeezed in between thefloating roof and the tank shellGlobal AST Solutions Provider Since 1978www.hmttank.com

KEY DESIGN FEATURESThe SealMaster® is the best availabletechnology in floating roof seals. Here’s why:Tested and certified gastightLiquid mounted and certified gastight, the SealMaster®is unsurpassed in its ability to mitigate rim seal vaporlosses. Designed with a gastight, thermally-weldedPTFE fabric membrane which completely envelopsthe vapor space, the SealMaster® system effectivelyreduces vapor losses from 9 up to 57 times ascompared to non-gastight seal systems.The SealMaster® primary mechanical shoe seal is theonly rim seal ever tested, proven and certified to begastight.Flame retardantSupplied with flame retardant membranes, the appliedPTFE (Teflon®) fabric has been fire tested under theguidance from DIN 22100/22188.Being flame retardant and having an excellentelectrical continuity will guard from rim fires for thecomplete lifespan of storage tank.Unsurpassed working rangeDesigned with a working range of R(-X/+3X) perEEMUA 159-BREF, which ensures that the seal will notgap, even under extreme ovality and lateral forcesfrom wind or product turbulence.Centers the floating roof anddampens lateral roof movementsThe SealMaster® is designed with fully-hardenedstainless steel spring plates. This material ensuresexcellent centering of the floating roof —if the rim gapgets smaller the seal exerts a progressively increasingforce on the tank-shell and vice versa. Keeping the roofcentered is critical to safe operation of any floatingroof tank.This same hardened steel provides the resistancerequired to keep the floating roof from movingexcessively during windy conditions or underturbulence from filling; this dampening capability isalso critical to safe and effective operations.SEALMASTER ® FEATURES Working range of R(-X/+3X) per guidance fromEEMUA 159-BREF, to seal off the worst of tankshells. Extremely flexible to adapt to bulges in the tankshell and out of roundness of the tank. Low profile to optimize working capacity. DIN 22100/22118 tested flame retardantmembrane. This combined with a good electricalcontinuity will definitively guard from rim fires. Abrasion resistant, due to a design of the tipseal of 4 layers. These 4 layers are built up out oftwo different rubber compounds, each speciallyselected for their typical application (chemical/weather resistance). Excellent water-shedding ability. Exposed fabrics are UV resistant. Shoe plates can be supplied in PVDF for chemicalcompatibility of certain stored products. Suitable for service in butt-welded, lap-welded orriveted storage tanks.Water ShedderWax ScraperABOUT HMTHMT is the global leader in aboveground storage tank solutions. HMT’s global team of engineers, projectmanagers and field personnel can assist with common challenges including ways to reduce emissions, optimizetank capacity, reduce stranded inventory and engineer a tank system that exceeds safety standards and extendsmaintenance intervals.HMT’s full suite of tank products includes: External Seal Systems - Internal Seal Systems - Drain and FloatingSuction Systems - Geodesic Domes - Skin and Pontoon IFRs - Full Contact IFRs - Emissions Reduction DevicesHMT Inc. | 24 Waterway Avenue, Suite 400, The Woodlands, Texas 77380Ph: +1.281.681.7000 | Fax: +1.281.351.8589 | Locations worldwideVisit us at www.hmttank.com13/10 REV 0SealMaster® is a registered trademark of HMT Inc. Teflon® is a registered trademark of DuPont