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Im <br />Sump Entry <br />Flexible entry boots have been <br />tested to withstand a minimum <br />of 6' of liquid head pressure. <br />These seals provide a studded <br />flange connection to create a <br />positive and secure seal where <br />the rubber contacts the sump <br />wall and also around the pipe or <br />conduit. Tightening down on a <br />series of stud fasteners with a <br />compression ring provides a <br />high compression mechanical <br />seal compared to screw on type <br />bulkhead seals. <br />Angled Entries <br />Pipe and conduit entering <br />the containment sumps may <br />not be perpendicular with <br />the sump wall. Angled entries <br />are generally a result of <br />directional plumbing restrictions <br />on the inside of the <br />containment chamber due to <br />space limitations. Flexible entry <br />boots are flexible enough to <br />permit angled pipe or conduit <br />entries (on two axises) into the <br />sidewall of a containment <br />chamber. All flexible entry <br />boots permit angled entries up <br />to a 15 degree angle off the <br />perpendicular center line in any <br />direction without leaking or <br />putting undue stress on the pipe <br />or conduit seal. <br />Universal Alignment <br />These seals are also capable of <br />universal pipe alignment either <br />up and down or side to side. This <br />feature allows accommodation of <br />pipe entry holes which are <br />installed slightly off exact center <br />alignment in the chamber wall. <br />This movement will prevent the <br />chamber wall from putting <br />undue stress on the pipe <br />coupling/fitting joint and the <br />entry boot as well. For flexible <br />piping applications within <br />dispenser sumps, the stresses <br />on the pipe fittings below the <br />product inlets are minimized by <br />the boot's flexibility. <br />• <br />Corrosion Resistance <br />The exterior studded metal <br />compression ring that provides <br />the positive sealing pressure is <br />encapsulated within rubber to <br />protect it from corrosion. More <br />than a 1/8" of rubber isolates the <br />metallic studded ring from the <br />ground environment. All studs <br />are made of 401 stainless steel <br />and are only exposed on the <br />inside of the containment sump. <br />Chemical Compatibility <br />All seals are made of specially <br />formulated Buna-N rubber <br />compound which has been <br />independently tested to insure its <br />compatibility with a wide <br />assortment of chemicals. These <br />tests include measuring the <br />material's retention of properties <br />as well as the physical <br />characteristics of the seal after <br />exposure. <br />Environ flexible entry boots are Listed with Underwriters <br />Laboratories, Inc., (UL). The scope of the tests include broad <br />compatibility testing for both petroleum products and burial <br />environments as well as physical testing to confirm the entry boots <br />structural integrity and liquid tightness. <br />.75" t B 7390` , ,I)Wgined to seal 3-1/1" custom pipe. <br />7.75 <br />FE67400 Designed to seal 4" standard rigid pipe. <br />4.530" 7.75 <br />*FEB -7450 Designed to seal 4" GeoDuctflexible ducting. <br />6.50" 9" <br />FEB -M Designed to seal 6" standard rigid pipe. <br />*These boots require a split Reducer Donut sold separately, but inchi de an airstem to allow for appropriate testing. <br />Patent claims allowed. <br />r,m Nd err-ooso �8, 620 Pennsylvania Drive • Exton, PA 19341 • Tel: 1610) 321-0200 • Customer Service (800) 833-1883 <br />J,,.issasMcc % o% ?, nv i ro n <br />Fax: (610) 321-0406 • http://www.envproduct.com • U.S. Patent 5263794, 5271518, 5297896, 5366318, .. ® ® u < <br />5346625, 5398976, Other U.S. and Worldwide Patents Pending • 0 Copyright 1997 <br />