round Mounting and Tile Assembly (thin wall)
North American 4425 Gas Burners Parts List & Instructions 4425
Z (dim. varies)
square Mounting (hard wall)
Backplate Gasket*
¾ " pipe plug
Studs (Gas Conn.)
Backplate
Air Tubes (8) see detail for -8-A Refractory Face
Gas Tube this construction on -7-A, -7-B, -8-A only
Observation Port (8790-0)
Gas Connection
Gas Connection Gasket*
Burner Tile (square)
Main Air Flange
Main Air Flange Gasket
Flat Washer
4425-2 to -6-Z 4425-7-AZ 4425-7-BZ 4425-8-AZ
Cap Screw
Body
Tile Retaining Rods (4)
Gas Tube extension
4425-8-A only (4-6122-1)
PARTS for 4425 Gas Burners
part name
4425-2
4425-3
4425-4
4425-5
4425-6
4425-7-A
4425-7-B
4425-8-A
Air Tubes (8 req'd), Inconel 3-3643-1†
3-3643-2† 4-2459-2 3-2607-1 3-2466-9
3-3640-2 4-2459-2 3-2607-1 3-2466-9 4-2121-2
3-3639-2 4-2459-2 3-2607-1 3-2466-9 4-2121-2
3-3554-2 4-2459-2 3-2607-1 3-2466-10
3-3273-3 3-3269-2 3-3272-1 3-3267-3 4-2142-2
3-3273-4 3-3269-2 3-3272-1 3-3267-3 4-2142-2
4-3684-2 3-3269-2 3-3272-1 3-3267-4 4-2142-2
Backplate
4-2459-2 3-2607-1 3-2466-9 4-2121-2
Backplate Gasket
Body
Burner Tile (9") [hard wall]
4-2121-2
4-2121-2
Cap Screw (8 req'd) Flat Washer (8 req'd)
R066-2920-H R-066-2920-H R066-2920-H R066-2920-H R066-2920-H R066-3420-H R066-3420-H R066-3420-H
R970-7300-C
R970-7300-C R970-7300-C R970-7300-C R970-7300-C R970-7370-C
R970-7370-C R970-7370-C
Gas Connection
3-2465-4 3-2473-1 3-2468-2 3-2473-1 3-2544-2 4-5371-2 3-3257-1
3-2465-4 3-2473-1 3-2468-2 3-2473-1 3-2544-1 4-5371-2 3-3257-1
3-2465-5 3-2473-1 3-2468-2 3-2473-1 4-1695-2 4-5371-2 3-3257-1
3-2465-6 3-2473-1 3-2468-2 3-2473-1 4-1695-3 4-5371-2 3-3257-1
3-2465-6 3-2473-1 3-2468-2 3-2473-1 4-1695-9 4-5371-2 3-3257-1
3-3268-2‡ 3-3272-1
3-3268-2‡ 3-3272-1
4-6126-1‡ 3-3272-1
Gas Connection Gasket
‡
‡
‡
Gas Tube
Gas Conn. Gasket Main Air Flange
3-2473-1 4-1695-5 4-5371-3 3-3270-1
3-3272-1 4-1695-5 4-5371-3 3-3270-1
3-3272-1
8765-8 7-D
Main Air Flange Gasket Mounting (hard wall) Mounting & Tile Assembly (thin wall)
4-5371-3 3-3270-1
3-6322-1/X.X
3-6322-1/X.X 3-6322-1/X.X 3-6322-1/X.X 3-6322-1/X.X 3-6322-2/X.X
3-6322-2/X.X 3-6322-2/X.X
Refractory Face
4-4038-3 3-2584-1
4-4038-3 3-2584-1 3-1115-2
4-4038-3 3-2584-1 3-1115-2
4-4038-3 3-2584-1 3-1115-2
4-4038-4 3-2584-1 3-1115-2
4-4039-2 3-3325-1 3-1115-2
4-4039-2 3-3325-1 3-1115-2
4-6127-1 3-3325-1 3-1115-2
Studs, Gas Conn. (4 req'd)
Tile Retaining Rods (4 req'd) 3-1115-2
* Backplate and Gas Connection Gaskets are identical pieces for -7 and -8 sizes. † Includes 3-3638-1 adapter. ‡ Gas tube is cast with Gas Connection for -7-A, -7-B, and -8-A sizes. Mounting and tile assembly part numbers have been revised to include the required "Z" dimension. When ordering tile and mounting assembly separately, include the "X.X" suffix to represent "Z" dimension in .5" increments, 2" min. to 9" max. For example: 3-6322-1/5.5 represents tile and mounting assembly for 4425-2-Z through 4425-6-Z burners with "Z" dimension of 5.5".
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