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Effi cient “Flexible Water Tube” design assures
easy maintenance and low cost operation
All Bryan EB Series boilers offer these operating and performance features
The Bryan Flexible Tube
Bryan’s exclusive “Flexible Tube” design eliminates the
possibility of damage from so-called “thermal shock.”
Tubes are easily removable and replaceable, without
welding or rolling, eliminating long, expensive downtime
should repairs ever be required.
Water cooled furnace
The confi guration of the water tubes
provides a water cooled
combustion chamber.
A high percentage of
the heating surface is
exposed to direct ra-
diant heat, increasing
water velocities and heat
transfer.
Large steam drum
The steam drum has gen-
erous water volume and
steam release area. This
design, along with effective drum internal functions,
results in a stable water level and produces extremely
dry steam at all load conditions.
Accessibility of furnace and tube area
One hinged inner panel provides easy and complete
access to furnace and boiler tube area, as well as to
burner head. Other tube side panels are also remov-
able, and all panels are heavily insulated and sealed to
boiler frame. All access is from only one side.
Compact design, minimum fl oor space
With our compact water tube design, the overall size
of the unit is less than most other types of boilers.
Needing only 32" for tube removal, and on only one
side of the boiler, the EB Series boiler occupies very
little space in the boiler room. This can result in con-
siderable savings in building costs. Pressurized fi ring
permits minimum sized breaching and vent.
Water Boiler
Combination thermometer and alti-
tude gauge, ASME Code rated boiler
relief valve, water temperature control
(240°F max std.), high limit control,
probe LWCO.
Steam Boiler
Combination low water cutoff and
pump control, auxiliary low water cut-
off, high limit pressure control, ASME-
rated safety valve, water glass set.
Straight gas fi red unit
Electronic combustion safety control,
automatic operating gas valve, safety
gas valve, pilot solenoid valve, pilot
ignition assembly, main manual gas
shut-off valve, pilot cock, pilot and
main gas pressure regulators, air safety
switch, control panel, all controls
installed and wired.
Multi-pass fl ue gas travel
High velocity four-pass fl ue gas travel is obtained by a
unique baffl ing system. This contributes to maximum
fi re side heat transfer and overall boiler effi ciency.
Thermal blend water return
Bryan’s unique “thermal blend” return blends cold or
cooler return water with warmer boiler water blending
it to design operating temperatures. An injector tube
directs the “mixed” water fl ow through the downcomer to
the lower header and heating surfaces at a temperature
above possible condensing conditions. This reduces the
possibility of “cold spots” and damage from corrosive
condensation.
Positive internal circulation
Each pass of the Bryan
water tube slopes up-
ward. This confi guration,
along with the large
volume down-comer
water legs, provides the
extremely rapid natural
thermal internal circu-
lation, promoting both
high effi ciency of heat
transfer and uniform
temperature throughout
the boiler. Eliminating
stress damage caused
by unequal temperature dis-
tribution is especially important
for heating systems, particularly where
intermittent or continuous low temperature water
returns may be encountered.
OPTIONAL EQUIPMENT,
EXTRA COST
1. Manual reset high limit control
2. Manual reset low water cutoff
3. Auxiliary low water cutoff
(standard on steam boilers)
4. Combination low water cutoff
and feeder
5. Alarm bells or horns
6. CSD-1, FM, GE-GAP or other
insurance approved control
systems
7. Indicating lights, as desired
8. Lead-lag systems for two or
more boilers with or without
outdoor reset control
9. Draft control system
When ordering, please specify:
1. Boiler size
2. Supply and return tempera-
tures required
3. Boiler relief valve setting
4. Type of fuel: natural, LP, or
other gas and/or No. 2 oil
5. If gas, type, BTU content,
specifi c gravity and pressure
available
6. Electric power voltage, phase
and frequency
7. Optional extra equipment or
construction
8. Special approvals required
(UL, CSD-1, FM, or GE-GAP)
9. Altitude
Bryan EB Series Boilers Standard and Optional Equipment
STANDARD EQUIPMENT FURNISHED
Straight oil fi red unit
Electronic combustion safety control,
oil valve, oil ignition transformer,
two-stage fuel unit — spark ignition
(EB75 & 100)/gas pilot (EB 125-240),
oil nozzle assembly, control panel, all
controls installed and wired.
Combination gas-oil unit
Electronic combustion safety control,
automatic motorized gas valve, safety
gas valve, pilot solenoid valve, pilot
ignition assembly, main manual gas
shut-off valve, pilot cock, pilot and
main gas pressure regulators, air
safety switch, manual fuel selector
switch, oil valve, gas pilot, two-
stage fuel unit, oil nozzle assembly,
control panel, all controls installed
and wired.
Water
Boiler
Steam
Boiler