Pyronic Tunnel Burners will burn any standard fuel gas at mixture pressures ranging from 0.1'' to 60'' W. C. The exclusive Pyronics patented refractory plug and combustion tunnel designs insure smooth stable operation. The long annular orifice reduces back firing even at very low mixture pressures.
Turbulence created by the nose plug and the stepped burner block provides positive flame retention at high mixture pressures with shorter flame length and higher heat release (on std. block only).
Pyronic Tunnel Burners are easily lighted at stated mixture pressure. The pilot tip is screwed into the body to insure permanent and correct location of the pilot flame. A second threaded hole is provided for accurate location of flame electrodes at the junction of the pilot and main flame.
A group of Pyronic Tunnel burners may be manifolded to a single Flomixer.
Table III (on the Product Specifications PDF) shows the correct Flomixer for various combinations of the same size burners. On applications that require long mixture piping, use several Flomixers to reduce pressure losses. Mixture piping must be at least as large as the Flomixer outlet size.MOUNTING ARRANGEMENTSReversible mounting flanges permit application to a wide variety of wall thickness. The assemblies are held in place by cementing into the wall. All other assemblies are normally attached to the wall by bolts or studs in the slotted openings provided on the flange periphery.
Style GAR & GA Burners having the same capacities and construction are available with an integral mounting flange especially designed for pressurized combustion chambers. Flange surface is machined for gasket tight seal of pressures up to 10 PSIG. Applications include pressurized air heaters, atmosphere generators and other sealed furnaces or retorts.
SELECTION Determine the number of Pyronic Burners required for proper heat distribution. Divide the total heat required by the number of burners for BTU/hr input to each burner. Locate ''Mixture Pressure'' at burners on Table I under available ''Air Pressure'' column. Select Pyronic Burner size required from Table II using BTU/hr per burner and mixture pressure from steps 2 and 3. Add letter designating wall mounting assembly to burner catalog number. Example: 101 - 2 - A (see pg. 4) TABLE I - BURNER MIXTURE PRESSURE (INCHES W. C.) - USING FLOMIXERS Air Pressure at Flomixer 4 oz. 8 oz. 12 oz. 16 oz. 20 oz. 24 oz. 32 oz. Mixture Pressure at Burners 2" 4" 7" 9" 11" 14" 18" TABLE II - PYRONIC BURNER CAPACITIES Model No. Actual* Burner Area Sq. Inches 1000 BTU/hr at Various Mixture Pressures at Burner -Inches W. C. (seeTable I) 0.1 2 3 4 5 7 9 11 14 18 22 101- 2 0.095 3 15 18 21 25 28 32 35 40 45 50 101- 4 0.184 9 38 45 55 60 70 80 86 100 110 120 101- 6 0.267 12 55 67 80 87 105 115 130 145 165 185 121- 8 0.343 16 75 92 105 120 140 160 175 200 225 250 121-10 0.414 20 90 110 125 140 170 190 210 240 270 300 121-12 0.479 22 100 125 140 160 185 210 240 265 305 330 162- 6 0.561 22 100 125 140 160 185 210 240 265 305 330 162- 7 0.653 26 120 150 170 190 225 255 285 320 365 400 162- 8 0.737 32 140 170 200 220 260 300 325 370 415 465 162- 9 0.822 36 160 195 225 250 300 340 375 425 475 530 162-10 0.902 42 190 230 265 295 350 400 440 500 560 620 162-12 1.068 50 220 270 315 350 415 470 520 595 665 745 203- 8 1.129 51 225 275 320 355 420 475 525 600 670 750 203-10 1.396 65 290 350 410 455 535 610 675 760 855 960 243-12 1.657 82 370 450 520 575 680 770 860 960 1100 1200 243-14 1.912 97 425 525 610 675 800 900 1000 1120 1280 1410 243-16 2.160 113 500 600 715 790 935 1060 1150 1320 1470 1660 243-18 2.403 126 555 670 795 880 1040 1180 1280 1455 1630 1815 *Coefficient of discharge - 0.90 Average
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