Extened Length | 4055 Igniters
4055-L EXTENDED LENGTH IGNITERS
WHEN SETSCREWS ARE LOOSENED, ASSEMBLY CAN BE WITH- DRAWN FOR CLEANING, THEN REINSERTED TO OPTIMUM DEPTH.
The 4055-L series igniters are extended length igniters with the same variable length adapters as the 4055-M.
Special engineered versions of the igniters can be also made with: — Custom lengths — The "ERA style" ignition cable connector — Special adapters or igniter tips
They feature: — Wide range of available fixed lengths from 12 (305) to 48 (1219) inches (mm) — Overlapping ceramic electrode insulators — A small enough diameter to fit through a ¾ " pipe fitting — Threaded adapters that allow adjusting the insertion length.
Nominal Length
5.25 (133)
Set Screws (Steel)
Ø .84 (21.4) Extension Tube (304 SST)
Igniter with Electrode and Ceramic Insulators
Mounting Adapter (Steel)
.09 (2.4) gap
Igniter Tip (309 SST) With Ground Wire (Kanthal A-1)
Positioning Collar (Steel)
O-Ring #212 (Silicone)
Igniter Model
Nominal Length
Adapter
Weight
Igniter Model Nominal Length
Adapter
Weight lbs (kg) 1.8 (0.8) 2.5 (1.1)
Number
Inches (mm)
Thread NPT lbs (kg)
Number
Inches (mm)
Thread NPT
4055-L12-1 4055-L18-1 4055-L24-1 4055-L32-1 4055-L36-1 4055-L42-1 4055-L-48-1
12 (305) 18 (457) 24 (610) 32 (813) 36 (914) 42 (1067) 48 (1219)
1" 1" 1" 1" 1" 1" 1"
1.8 (0.8) 2.5 (1.1)
4055-L12-0 4055-L18-0 4055-L24-0 4055-L32-0 4055-L36-0 4055-L42-0 4055-L-48-0
12 (305) 18 (457) 24 (610) 32 (813) 36 (914) 42 (1067) 48 (1219)
¾ " ¾ " ¾ " ¾ " ¾ " ¾ " ¾ "
3 (1.4)
3 (1.4)
3.8 (1.7) 4.2 (1.9) 4.9 (2.2) 5.4 (2.4)
3.8 (1.7) 4.2 (1.9) 4.9 (2.2) 5.4 (2.4)
SPARE PARTS
Common Parts
Part Number
Model Number 4055-L12-# 4055-L18-# 4055-L24-# 4055-L32-# 4055-L36-# 4055-L42-# 4055-L-48-#
Electrode Assembly
Igniter Tip
4-57718-1 4-45311-1 4-45311-2
4-57719-12 4-57719-18 4-57719-24 4-57719-32 4-57719-36 4-57719-42 4-57719-48
¾ " Threaded Adapter Assembly 1" Threaded Adapter Assembly
Adapter assemblies include: positioning collar, mounting adapter, o-ring, and setscrews.
Note: All 4-57719-# electrodes are built with modified versions of igniters labeled with "R240-2755" or "I-2". Do not replace the electrode in a 4055-L with an unmodified "R240-2755" or "I-2" electrode. It will not function correctly.
Bulletin 4055 Page 5
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