uFiretube, Firebox Boliers
Vertical Tubeless 
Condensing Boiler
Steam or Hot Water
Gas, Oil, Coal, Solid Waste Wood Biomass, and Hybrid Fuels
Iroquois Flexible Watertube Boilers
Features
4,200 to 50,400 (100 to 1200 BoHP)
Compact Footprint
Patent Pending Design
ASME Section IV & Section I
Design Pressure Capability to 650 psig
Unique Optional Radiant Superheater Available
Multiple Pass Design
Easy Access to All Tubes for Maintenance
Optional Field Assembly Design Without Welding or Rolling
uHigh Efficiency Burners from 400,00 up to 109,000 btu/hr
With The Capability Of:
oHigh turndown ratio 10:1 (20:1 to 7100MBH)
o3% O2 throughout the entire firing range
o0 ppm CO throughout the entire firing range
o30 ppm Nox capability without FGR
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We can conduct a full steam system audit comprised of:
üFull Steam Trap Studies
üCheck Piping for Heat Sinks
üCheck Heat Exchangers for present stall conditions.
Audits start in the boiler room and follow steam piping to process
and back to the feedwater tank or DA.
A custom booklet will be constructed for each facility comprised of 5 sections including:
üSteam System Description,
üObservations & Recommendations
üPriority Repair List
üTrap Audit
üReference Section.
We then set a meeting to review the booklet and its findings with the customer.
Steam Audit Scope:
1.All traps will be tagged and checked for proper operation.
2.Steam traps will be sized and recommendations will be given for energy efficient traps.
3.Steam piping will be checked for proper sizing and location of drip legs & clean outs.
4.Estimated savings will be calculated from present fuel, water cost and current boiler run time.
5.Boiler room efficiency estimates will be compiled and listed.
6. Visually Check the operation of the DA, Feed water Tank and list findings.
8.Recommendations will be given for any safety related items viewed.
9.Estimated repair cost will be compiled and presented in the custom facility booklet in conjunction with
estimated savings.
Samples of various Audit Observations:
The Feed Water Tank’s steam pre-heat valve does not have a drip leg and trap up stream.
Removing the condensate will make the valve control more accurately.
Condensate can eventually destroy the seat in the valve.
Adding a drip leg and trap is recommended
The main steam header in the boiler room does not have a drip leg
and a trap before the main 100 PSI knock down regulator.
High pressure steam should come from top of the pipe.
This header has an elevation change on the high pressure main.
Recommend installing drip leg, trap and clean-out
Steam Audit Samples:
Properly evacuating condensate from a steam system.
This will improve steam quality and can prevent
steam expansion (water hammer) causing vessels
to rupture and valve or piping issues.
Installation of properly sized and properly placed drip legs
& traps with clean outs are recommended
on every elevation change.
All steam system drip legs should be properly sized
and have clean outs installed.
These clean outs can be drilled and tapped for 1/2” NTP,
or flanged clean outs with steam rated ball valves added
for blow down on 4 to 6 month intervals to remove any excess debris.
Traps with strainers can be blown down under this PM type procedure also.
Over time leaks develop causing oxygen to enter the steam and
condensate system, this can cause carbonic acid.
Carbonic acid can cause internal pipe and equipment erosion or failure.
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oBoiler Room, House Keeping Pads and Assicoated Steam Equipment.
oInstallation Of (Steam, Gas, Oil,Electrical and Water Piping)
oBuild Any Access Or Support Structures
oModify or Build New Stack, Breeching or Exaust Ducts for all your needs.
oIStart-Up and Comission New Equipment
All Work Completed By In House Trades!!!
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