Barrel Heaters - Hasmak.com.tr

<strong>Barrel</strong> <strong>Heaters</strong>MI BandVariationsContinuedMI <strong>Barrel</strong> Heater With HolesMI <strong>Barrel</strong> heaters with holes areavailable on all widths except25.4 mm (1 in.) wide. Consult theWatlow factory in St. Louis, Missourifor hole sizes and location restraints.To order, specify hole size andlocation. 76.2 mm (3 in.) insidediameter minimum.11 mm(0.420 in.)22 mm(0.875 in.)Outside Diameter HeaterTwo fiberglass insulated lead wiresrated to 450°C (840°F) exit a metalbraid 180 degrees opposite fromgap, Type B outside diameterdesigned and constructed to matewith inside diameter of cylinders.To order, specify outside diameterheater. Note that 76.2 mm (3 in.) isthe minimum cylinder I.D.Clamping VariationsTig Welded <strong>Barrel</strong> Nuts With Spring Loaded Clamping147 mm (5.8 in.)19 mm(0.75 in.)Welded barrel nuts with springloaded clamping are used duringstart-up to maintain a tight heater fiton large barrels. This clampingvariation is standard for all MI <strong>Barrel</strong>heaters that are greater than355 mm (14 in.) in diameter and38 mm (1.5 in.) or greater in width.For smaller diameter heaters, this isan option and must be orderedseparately. To order, specify springloaded clamping.Tig Welded <strong>Barrel</strong> NutsTig Welded14 mm(0.563 in.)An ideal way to provide accessfor instrumentation is to specify anoversized gap between the heaterends. If the clamp bar screwinterferes with the positioning ofthe instrumentation device, weldedbarrel nuts are re<strong>com</strong>mended. Toorder, specify tig welded barrelnuts and gap dimension whenordering.Low Profile Tig Welded <strong>Barrel</strong> NutsLow profile barrel nuts are availableon all widths. Low profile barrel nutshave a clearance of 10 mm(0.406 in.). To order, specify lowprofile tig welded barrel nuts.Low Profile Clamp Bars11 mm(0.45 in.)I.D.Low profile clamp bars are availableon both one 25 mm (1 in.) and38 mm (1.5 in.) wide heaters, forwider widths consult factory. Thebars are 6 mm (0.25 in.) diameterwith an 8-32 screw. To order, specifylow profile clamp bars.212