Boiler Guide

R.W. Beckett Nozzle Line Length Code
Replacement
Nozzle Line
Universal
Electrode Kit
A.T.C. Code
Length
Burner
Head
Throttle
Ring
A.T.C.
Code
Retention
Ring
Throttle
Cup
NOTE: If the customer has a non-flame retention
burner Model “A” or “S” with the A.T.C. Code
A,B,C,D,E,F,G,J,K,L,M,XG or XH, it will be
necessary to purchase one of the following
universal electrode kits for replacements:
Beckett part number 5781, for air tubes 3” to 9”
in usable length, or Beckett part number 5782,
for air tubes 10” to 21” in usable length.
30 to 36 NL30 to NL36 578711
40 to 90 NL40 to NL90 5780
104 to 210 NL104 to NL210 5782
R.W. Beckett Air Tube Combination Code Listing
Burner
Head
Static
Plate
A.T.C.
Code
Burner
Head
Static
Plate
A.T.C.
Code
Burner
Head
Special
Construction Code
A.T.C.
Code
FS Fiber Head Protector
HS Heat Shield Porcelain
SS Stainless Steel Air Tube
XS Fiber Head Protector AFII
OS Outer Shield
AQ 16-Slot Venturi
AS 1-Piece
Venturi
Aluminized
Steel
4
AFII Burner Air Tube Combinations
NX Burner Air Tube Combinations
LB
9-Slot 6-Hole
12-Slot 6-Rib
51815 1/4”
LC
6-Slot 6-Hole
12-Slot 6-Rib
51785 1/4”
LD
9-Slot 6-Hole
4-Leg 4-Rib
51815 3/8”
LF
6-Slot 6-Hole
4-Leg 4-Rib
51785 3/8”
LG
9-Slot 2-Hole
12-Slot 6-Rib
51815 1/4”
LH
6-Slot 2-Hole
12-Slot 6-Rib
51785 1/4”
LJ
*9-Slot 6-Hole
12-Slot 6-Rib
52020 1/4”
LK
*6-Slot 6-Hole
12-Slot 6-Rib
52019 1/4”
LL
*9-Slot 6-Hole
4-Leg 4-Rib
52020 3/8”
LM
*6-Slot 6-Hole
4-Leg 4-Rib
52019 3/8”
LN
*9-Slot 2-Hole
12-Slot 6-Rib
52020 1/4”
LP
*6-Slot 2-Hole
12-Slot 6-Rib
52019 1/4”
*No 3/16” hole in Head
ZE F22
3-7/16”Fin
388901
ZF F6
3-3/8”
3384
ZG/WF F6
3-1/2”
3898
ZH F12
3-7/16”Fin
388901
ZJ F31
2-1/2”
3894
ZN F6 None
ZP F3
3-1/2”
3898
ZR F3S
2-3/4”
3383
ZV F120
3-3/8”
3384
ZS F4S
2-3/4”
3383
ZT F120 None
*MA (1)
L1 3 -3/ 8”
5912U 3384
*MB (1)
L1 3- 3 /8”
5912U 3384
*MC (1)
L1 2-3/4”
5912U 3383
*MD (2)
V1 2-3/4”
5913U 3383
*MK (2)
V1 2-3/4”M
5913U 31905
*ML (2)
V1
None
5913U
*MM (2)
L1 3 - 3/ 8”
5912U 3384
*MN (1)
L1
None
5912U
*MP (2)
L2 2-3/4”
51895U 3383
*MQ (2)
L2 3-3/8”
51895U 3384
*MRN (2)
L2
None
51895U
*MS (2)
L1
None
5912U
*MT (2)
L1 2-3/4”
5912U 3383
HB
6-Slot
—
51671U
HC
9-Slot
—
51672U
HD
6-Slot
—
51671U
HE
9-Slot
—
51672U
HFXS FB0 XS
HGXS FB3 XS
HHXS FB4 XS
HIXS FB6 XS
* To be used on Model ”AFG” only.
(1) Straight Shroud 1-3/8 ” 'Z' Dimension
(2) Conic Shroud 1-3/4 ” 'Z' Dimension
Special Construction Codes