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MERIT® <br />Weld-MiserTm Tee -Let® <br />Installation (coat.) <br />Welding Outlet Fittings <br />RECOMMENDED <br />r• MICROWIRE WELDINGPROCESS,r <br />r ON <br />Header Size <br />Pipe Wall Thickness <br />Tee -Let Types A, B,C <br />Electrode <br />Size <br />Welding <br />Current <br />Arc. Volts <br />Wire Feed <br />Travel Speed <br />In../mm <br />In./mm <br />In../mm <br />AMPS -DC <br />PCs. <br />IPM <br />/PM <br />Yi-2 <br />0.035 <br />100-130 <br />16-20 <br />210 <br />25-30 <br />0.065 <br />13-50 <br />2Yi-4 <br />0.035 <br />115-150 <br />17-21 <br />270 <br />20-25 <br />1Ya-2 <br />63-100 <br />31-50 <br />Yi-2 <br />0.035 <br />110-140 <br />18-22 <br />220 <br />25-30 <br />0.109 <br />13-50 <br />2Yi-4 <br />0.035 <br />120-160 <br />19-22 <br />290 <br />20-25 <br />s <br />63-100 <br />Yi-2 <br />0.035 <br />110-140 <br />17-20 <br />210 <br />20-25 <br />0.083 <br />13-50 <br />2,5 <br />2Yi-4 <br />0.035 <br />120-150 <br />17-20 <br />270 <br />20-25 <br />2112- 4 <br />63-100 <br />63-100 <br />Yi-2 <br />0.035 <br />120-160 <br />19-22 <br />290 <br />20-25 <br />0.120 <br />13-50 <br />2Yi-4 <br />0.035 <br />130-160 <br />19-22 <br />240 <br />20-25 <br />3 <br />63-100 <br />Yi-2 <br />0.035 <br />120-150 <br />17-20 <br />210 <br />20-25 <br />0.109 <br />13-50 <br />2Yi-4 <br />0.035 <br />130-150 <br />18-20 <br />270 <br />15-20 <br />63-100 <br />5-6 <br />'fz-2 <br />0.035 <br />130-160 <br />19-22 <br />290 <br />20-25 <br />125-150 <br />13-50 <br />0.134 <br />2Yi-4 <br />0.035 <br />140-160 <br />20-22 <br />270 <br />15-20 <br />63-100 <br />2Yi-4 <br />0.045 <br />180-205 <br />20-24 <br />245 <br />27-32 <br />63-100 <br />Yi-2 <br />0.035 <br />120-150 <br />17-20 <br />240 <br />20-25 <br />13-50 <br />0.109 <br />2Yi-4 <br />0.035 <br />130-150 <br />18-20 <br />260 <br />15-20 <br />63-100 <br />2Yi-4 <br />0.045 <br />170-220 <br />18-22 <br />290 <br />12-18 <br />8 <br />63-100 <br />Yi-2 <br />0.035 <br />130-160 <br />19-22 <br />240 <br />20-25 <br />200 <br />13-50 <br />2Yi-4 <br />0.035 <br />140-160 <br />20-22 <br />260 <br />15-20 <br />0.148 <br />63-100 <br />2Yi-4 <br />0.045 <br />180-225 <br />20-24 <br />290 <br />12-18 <br />63-100 <br />Shielding Gas Flow (FOR ALL sizes) 20-25 CFH <br />1.) Co, - Deeper penetration, faster welding, low cost. <br />2.) 25% - Argon, 75% - Co,, Recommended for .134 wall and lighter, high welding speeds <br />without melt through, minimum distortion and spatter, good penetration. <br />Merit assumes no liability for any consequential damages resulting from the im- <br />proper use of its Tee -Let Welding Outlet Fittings, nor for any recommendations made <br />with respect to installation procedures. <br />—10— Merit -1.10 <br />St8P- <br />FlreProtluctsDMslon afMvll lnhrnaeonal <br />