Combustion Catalog | Fives North American

Dimensions | High Velocity Burner

Table 1. 4441A Natural Gas Performance Data

(Performance for 16 osi/27.7"w.c./69 mbar main air pressure operating at stoichiometric ratio unless stated otherwise)

Burner Size

-2

-3

4-A

-4-B 7150 (191) 6000 (160)

-5

-6*

-7

scfh (Nm3/h) scfh (Nm3/h)

Air Flow, not burning

2750 (73.5) 2300 (61.5)

3800 (102) 3300 (88.2)

5900 (158) 5300 (142)

10 600

18 000

25 500

(283) 9 00 (249)

(481)

(682)

Air Flow, burning

14 500

22 500

(388)

(601)

Air Orifice DP,UA-DA Gas Orifice DP, UG-DG

16.8 (41.8) 6.7 (16.7) 17.1 (42.7) 24.7 (61.6)

18.2 (45.3) 18.3 (45.6) 15.0 (37.4) 4.2 (10.5)

— — — — — — — —

11.0 (27.4) 5.7 (14.2) 12.5 (31.0) 17.1 (42.7)

"w.c. (mbar) "w.c. (mbar) "w.c. (mbar) "w.c. (mbar)

7.2 (17.9)

7.0 (17.4)

6.2 (15.4)

2.9 (7.2)

Gas Pressure

15.9 (39.6) 14.7 (36.6) 17.5 (43.5) 7.6 (19.0) 24.9 (62.1) 18.9 (47.0) 21.6 (53.9) 9.9 (24.6)

Gas Pressure 30% XSF

Max. % XSA, (ignition & flame signal limit) Max. % XSF, (ignition & flame signal limit)

3500

4500

6000+

6000+

6000+

6000+

30

30

30

30

50

50

"w.c. (mm) "w.c. (mm)

Flame Length Flame Diameter

12 (305) 2.0 (51)

14 (356) 2.0 (51)

24 (610) 3.0 (76)

24 (610) 3.0 (76)

24 (610) 4.5 (114)

42 (1067) 6.0 (152)

*Lab data for -6 size not available. Air flow values estimated.

DIMENSIONS (inches)

D

Y

E

fl ame supervision ¾ " fpt

C–mpt hot gas outlet

H

B–fpt gas inlet

1

DG

37-0289/HR

E

A –fpt (-7 only)

UA

A –fpt air inlet

F

F (-7 only)

45º

weight

Inlet/outlet threads NPT

dimensions in inches (mm)

Burner

designation

A

B

C 2 2 2 2 3 3 4

D

E

F

H

lb (kg) 40 (88) 40 (88) 40 (88) 40 (88) 75 (165) 75 (165) 95 (210)

4441A-2-RRH/T 4441A-3-RRH/T 4441A-4-ARRH/T 4441A-4-BRRH/T 4441A-5-RRH/T 4441A-6-RRH/T 4441A-7-RRH/T

1 ¼ 1 ½

¾ ¾

7.25 (191) 3.75 (95) 13.88 (353) 2.75 (70) 7.25 (191) 3.75 (95) 13.88 (353) 2.75 (70) 7.25 (191) 3.75 (95) 13.88 (353) 2.75 (70) 7.25 (191) 3.75 (95) 13.88 (353) 2.75 (70)

2 2

1 1

2 ½

1 ¼ 1 ½

10 (254) 11 (254) 12 (254)

5.0 (127) 15.40 (391) 3.63 (92) 5.0 (127) 15.40 (391) 3.63 (92) 5.0 (127) 25.13 (638) 3.63 (92)

3 4

2

4441A-7 has special arrangement of air and gas connections. See Bulletin 4441 for dimensions.

Discharge Connections . The Aardvark's threaded tile discharge connection can be connected to distribution piping with a straight or reducing coupling or flange union.

Caution : All fittings, flanges, and distribution piping must be suitable for temperatures anticipated at burner discharge.

DIMENSIONS SHOWN ARE SUBJECT TO CHANGE. PLEASE OBTAIN CERTIFIED PRINTS FROM FIVES NORTH AMERICAN COMBUSTION, INC. IF SPACE LIMITATIONS OR OTHER CONSIDERATIONS MAKE EXACT DIMENSION(S) CRITICAL .

Bulletin 4441A page 3

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