Bul 4630 page 3
4630 AUXILIARY SECTIONS & ACCESSORIES
7⁄8
1 1⁄32
flame rod adapter
spark plug
38°
1 ½ ½ fpt
5⁄16 slot for ¼ bolt
1 11⁄16 rad.
7⁄8
1 ¾
2 ½
3 7⁄8
1 9⁄64 dia.
1 11⁄16 rad.
1 15⁄32
¼ -20 NC tap
¾ fpt
(3) 9⁄32 holes
(3) 5⁄16 holes
5⁄16
7⁄8 rad.
1 3⁄8
1 ½ 3⁄8 3
11⁄32
1 25⁄32
½
1 ¾
2
2
3 ½
1 ¾
4-2408-3 Pilot and Flame Rod Bracket (wt. 1 lb)
4-2167-1 Companion Endplate (wt. 1 lb) For mounting 4-2408-3 pilot and flame rod bracket, as shown in center of photo on Page 4.
4630-P Pilot Section (wt. 4 lb) Complete with spark plug, two separator plates, and provision for adding an 883_-J flame rod adapter. This 3" section has ¾ " bottom inlet and takes a 3065-0-7 Mixer (do not specify a capacity rating).
For mounting a 4021-15 or 4021-16 Pilot Tip and an "M" style flame rod adapter. Use with Part No. 4-2167-1.
Flame Rod Part No. R130-7116
(3) 5⁄16 holes
1 11⁄16 rad.
½
1 11⁄16 rad.
11⁄16
7⁄8
1 ¾
bore
1 11⁄16
2 ½
5⁄8
(2) 3⁄8 dia. holes
5⁄8
2
5⁄16 (3) 9⁄32 holes
5⁄16 -18 NC tap
3⁄8 ¾
5⁄8
5⁄8
2 ½ min. 3 3⁄16 max.
1 ¾
2
2
Pilot Bracket* (wt. 1 lb) For mounting pilot tip only (no flame rod) as selected from table below. Use with Part No. 4-0804-2 as shown at rear of photo on page 4.
4-0804-2 Companion Endplate (wt. 1 lb) For mounting pilot bracket, as shown at rear of photo on Page 4.
4-3159-1 Expansion Ignition Coupling (wt. 3 ¼ lb)
Used in place of and far superior to the separator plate. It can telescope to absorb some expansion in an assembly when burners heat. It permits low fire side to pilot high fire side and vice versa.
*Pilot Bracket
Bore
for Pilot Tip
4-0680-1 4-0680-2
1 1⁄64
4021-13, 4021-14, 4021-15, 4021-16
1 9⁄64
1 11⁄16 rad.
1 11⁄16 rad.
2 fpt
(3) 5⁄16 holes
(3) ¼ -20 tap holes
1 11⁄16
5⁄16
1 1 ½
1 ¾
2
1⁄32
2
1 ¾
4-1739-1 Separator Plate (wt. ¼ lb) Used to separate mixer zones within an assembly. If all mixture pressures in an assembly are essentially equal, flame will cross separator plates so one pilot suffices for the entire assembly.
4-0803-1 2" Inlet Flange (wt. 2 lb) Bolted to the end of any section, it provides a threaded 2" pipe size feed connection.
4-0804-1 Std. Endplate (wt. 1 lb) Used to close ends of an assembly.
1 11⁄16 rad.
1 5⁄8 sq.
2 ¼
(3) 9⁄32 holes
5⁄16
3⁄8
1 1⁄8
(wt. ¼ lb)
4630HK Hardware Kit
2
1 ¾
2
3 fpt
1 7⁄8
Used to connect sections and accessories. Three fasteners per kit; one kit per connection. Hardware Kit consists of three hex head bolts ( ¼ -20 UNC by 1 ¼ " lg.) and three hex nuts ( ¼ ").
4-0827-1 Supporting Endplate (wt. 1 ¾ lb)
3" Pipe Plug Std. Sq. Hd (wt. 3 ¼ lb) For plugging unused feed connections.
In addition to closing the end of an assembly, it provides a 2" projection for supporting the assembly (see rear of photo on Page 4).
Hardware is included with each main burner section.
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