Flame Rods| 4445-2 through -4-B Legacy Tempest®
Bulletin 4445/4445N Page 14
FLAME RODS FOR -2, -3, -4-A AND -4-B BURNERS WITH A 45° AIR INLET
1/2" NPT
Washer on both sides of insulator
Ø .276 (7)
*Electrode Coupling
3.50 (92.5)
2.31 (59)
L
FLAME RODS WITH LEGACY .276" (7MM) Ø INSULATOR
Nearly all 4445-2, -3, -4-A and -4-B burners supplied with a flame rod have a .276" (7mm) Ø insulator on the electrode which fits through a .30" Ø access hole in the burner stabilizer.
4445-2 thru -4-B
Flame Rod
"L" Dimensions
Model Length Designation
Part Number
Inches (mm) 10.25 (260) 18.63 (473) 28.53 (727) 38.63 (981)
Short - "S"
4-24745-1 4-24745-2 4-24745-3 4-24745-4
Medium - "M"
Long - "L"
Extra Long - "E"
1/2" NPT
Stabilizer support insulator
Ø .315 (8)
*Electrode Coupling
3.64 (92.5)
2.31 (59)
L
UPDATED FLAME RODS (for burners with a larger flame rod access hole in stabilizer, after late 2020)
4445-2 through -4-B burners made after late 2020 have a .34" Ø Flame rod access hole in the stabilizer. These burners or older models with the flame rod ac- cess hole enlarged with an “R-drill” (.339" Ø) can use the newer larger diameter insulator which is more rugged than the old insulator.
4445-2 thru -4-B
Flame Rod
"L" Dimensions
Model Length Designation
Part Number
Inches (mm) 10.25 (260) 18.63 (473) 28.63 (727) 38.63 (981)
Short - "S"
4-57285-1 4-57285-1 4-57285-1 4-57285-1
Medium - "M"
Long - "L"
Extra Long - "E"
* Very long flame rods may have a weld or an electrode coupling to lengthen the electrode.
WARNING: Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.
CONTACT fna.sales@fivesgroup.com T +1 800 626 3477 - F +1 216 373 4237
Fives North American Combustion, Inc. 4455 East 71st Street - Cleveland, OH 44105 - USA www.fivesgroup.com
Made with FlippingBook flipbook maker