Product Details | Flame Detector Adapters
"M" STYLE ADAPTERS
"M" style adapters are used to mount a pilot and flame detector on 4630 main burner sections. See Bulletin 4630 for more details. The adapter also has provisions to mount a 4021-15 or 4021-16 slip-fit pilot tip, see Bulletin 4011/4021 for pilot tip details. There is a 1/4-20 threaded hole in the adapter to add a set screw or bolt (which is not included) to secure the pilot tip.
They can also be used in custom flame detector/pilot mounting solutions. The adapter can be ordered without extra pipe adapter fit- tlings as the 4-2408-3.
B
½ " NPT
38°
.31
Ø 1.141
1.47
2.50
3.9
1.47
A
A
.69
1.44
¼ -20 THD
B
0.25
Section B-B
.31
.50
Use ¼ -20 X ¼ " or longer set screw or bolt (not included) to secure pilot tip (also not included)
.88
4021 PILOT TIPS (optional)
3.50
Section A-A
4021-15 Slip-fit manually lit (without spark plug)
1.38
2.88
1.125 Ø
¾ NPT
8832-M
2.50
4-2408-3 ("M" adapter) with optional 4021 pilot tip and flame rod on a 4630 Main Burner Section.
4021-16 Slip-fit (with spark plug)
Bulletin 8832 Page 6
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