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 ARRANGEMENTS
Reversible 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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