Combustion Catalog | Fives North American

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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