Engineering Data | Tempest ® III High Velocity
NORTH AMERICAN 6435 DUAL-FUEL BURNER ENGINEERING DATA, 800 °F HOT AIR
6435-4 | 800 °F Main Air, Cold Atomizing Air
Main Air Pressure osi/"w.c./mbar
osi
0.2 0.3 0.9 430 (11.5)
1
4
9
16
20
Burning Natural Gas
"w.c. mbar
1.7
6.9 17.2
15.6
27.7
34.6
4.3
39
69
86
Main Air Flow, stoich. ratio
scfh
1050 (28.1)
2150 (57.5)
3200
4250
4780 (128)
(Nm 3 /h)
(86) 180
(114) 160
Atom. Air Flow @ 8 osi/35.5 mbar stoich. ratio
scfh
215
215
200
150
(Nm 3 /h)
(5.75)
(5.75) 1400 (37.4)
(5.35) 2480 (66.3)
(4.81) 3510 (93.8)
(4.28) 4540
(4.01) 5060 (135) 506 (13.5)
† Total Air Flow, stoich, ratio
scfh
775
(Nm 3 /h)
(20.7)
(121) 454 (12.1)
Gas Flow stoich. ratio
scfh
78
140
248
351
(Nm 3 /h)
(2.08)
(3.74)
(6.63)
(9.38)
Gas pressure stoich. ratio Tile pressure stoich. ratio
"w.c. (mbar) "w.c. (mbar)
0.26 (0.6)
1.0 (2.6) 0.5 (1.3)
3.3 (8.2) 1.5 (3.7)
7.1 (17.7)
11.9 (30)
14.7 (37) 6.7 (16.8)
0.1 (0.2)
3.3 (8.2) 5.5 (13.8)
‡ Max. % XSAir Stablility & UV Flame supervision
400 350 NO 30+
400 400
400 400 150 30+
350 350 150 30+
400 400 300 30+
400 400 300 30+
Max. % XSAir Ignition--pilot
Max. % XSAir Ignition--direct spark
10
Max. % XSFuel
30+
Flame length stoich. ratio Flame diameter stoich. ratio
inch (mm) inch (mm)
8 (203) 2.0 (51)
13 (330) 3.0 (76)
16 (406) 3.0 (76)
18 (457)
18 (457)
18 (457) 4.0 (102)
4.0 (102) 4.0 (102)
Burning #2 Oil
Main Air Flow, stoich. ratio
scfh
500
1020 (27.3) 420 (11.2) 1570 (42.0)
2050 (54.8)
3150
4230
4770 (128)
(Nm 3 /h)
(13.4) 430 (11.5) 1060 (28.3)
(84.2)
(113) 395
Atom. Air Flow @ 30 osi/129 mbar stoich. ratio
scfh
410
400
390
(Nm 3 /h)
(11.0) 2590 (69.2)
(10.7) 3680 (98.4)
(10.6) 4755
(10.4) 5290
† Total Air Flow, stoich, ratio
scfh
(Nm 3 /h)
(127)
(141)
Oil Flow stoich. ratio
gph (lph)
0.8
1.1
1.9
2.6
3.4
3.8
(3.03)
(4.16)
(7.19)
(9.84)
(12.9)
(14.4)
Oil pressure stoich. ratio Tile pressure stoich. ratio
psi (mbar) "w.c. (mbar)
0.9 (62)
1.0 (69) .04 (1.1)
1.2 (83) 1.7 (4.3)
1.3 (90)
1.5 (103)
1.6 (110) 7.1 (17.7)
0
3.3 (8.2) 5.5 (13.8)
‡ Max. % XSAir Stability & UV Flame supervision
25 25
50 50
125 125 20+
250 250 20+
300 250 20+
300 150 20+
Max.% XSAir gnition--pilot
Max. % XSFuel
20+
20+
Flame Length stoich. ratio Flame diameter stoich. ratio
inch (mm) inch (mm)
10 (254) 2.0 (51)
11 (279) 2.0 (51)
14 (356) 3.0 (76)
17 (432) 3.0 (76)
17 (432) 3.0 (76)
18 (457) 3.0 (76)
† Total air is main air plus atomizing air plus 130 scfh for pilot air. ‡ Honeywell Ultravision Flame Detector C7027A and Honeywell Flame Supervision ProtectoRelay RA890G yielded 1.5 micro amps or greater for all above rates. • The electrode setup used was that shown in drawing B4-7249. The cooling air was shut off for ignition and turned back on afterwards.
Maximum body temperature 510 °F
Bulletin 6435 Page 18
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