Burner Mounting Criteria - Webster Cyclonetic SG Series Installation, Startup, Operation And Maintenance Manual

It is of vital importance that the burner be properly mounted to the boiler or appliance being fired. Improper mounting
can cause leakage of the hot gases back around the burner head resulting in warpage and deterioration. The following
illustrations show the proper way the burner must be installed to validate warranty conditions.
TYPICAL SG BURNER REFRACTORY FRONTPLATE
B
- Bolt Circle
Use minimum
of four (4) 1/2"
studs with lugs
A
- Opening
Minimum of six (6) holes for
boiler mtg. studs, 1/2" or larger
Figure E-1
Refractory Dimension
Figure D-2
Burner Mounting Instruction
The burner must
be level
SG Manual
D. BURNER MOUNTING CRITERIA
Minimum
A
7 gauge
4"
Minimum
A
14 Gauge
Tighten clamp bolts
uniformly – check after
firing for several hours
The gas piping from the burner to the train
should have as few elbows as possible to
reduce pressure drop
MODEL
2"
Vessel
A
Specific
Refractory OD is sized to
fit vessel opening with 1/4"
to 1/2" gap; refractory must
extend 2" beyond tube
sheet for scotch boilers
This surface must be sealed against the
vessel; check vessel mounting for
Fiberglass rope
gasket must be
coiled to cover
the full mounting
flange surface
Attachment to vessel varies with
manufacturer (follow vessel
manufacturer's recommendation)
Page 8
Dimensions - Inches
DIM. A
SG6 6 5/8
SG8 8 5/8
Contact Webster for more
detailed refractory drawings.
requirements
This surface must be
sealed against the vessel;
check vessel mounting
for requirements
If gap is over 3/16", wrap
burner nose with high
temperature ceramic
insulating rope

Burner Mounting Criteria

DIM. B
10 1/8
12 1/8