Boilers - Wetback Ohio Special Home 2

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	18. Ceramic Fiber Blanket: Front smokebox and doors lined with space-age ceramic fiber blanket 17. Tube Design: 3 pass wetback design for optimum efficiency and economical operation. 16. Galvanized Coated Steel Jacket: A 500 degree Fahrenheit acrylic silicone based paint finish is applied to the 22-gauge phosphate galvanized coated steel jacket. 15. Insulation: Two inch 8-lb. density mineral fiber insulation with an R factor of .27 which reduces heat loss through the jacket and provides jacket support. 14. Lifting Eyes: Heavy steel lifting eyes for ease of handling. 13. Stack Outlet: Flanged round rear smoke outlet requires only a stub stack for proper draft. Supports 2000 lb. dead weight 12. Rear Doors: Split/hinged rear doors provide access to the rear tubesheet and third pass tube. 1. Single Source Responsibility: Superior Boiler Works, Inc. Seminole Boiler/Burner units are covered by Superior’s warranty* of 18 months from date of shipment or 1 year from date of startup. 11. Wetback Turnaround: Wetback turnaround eliminates the need for refractory lining, baffles, gaskets and provides additional primary heating surface for increased efficiency. Separate tube sheets allow for differences in expansion due to varying temperatures of the gasses. 10. Furnace: Large corrugated furnace. Corrugated furnaces operate at a lower average metal temperature. This in turn reduces the linear expansion of the furnace, reducing the flexing of the tubesheets. This results in fewer tube leaks or serious cracking damage to the tubesheet. 9. Boiler Skid: Structural steel skid-type base supports and protects burner. 8. Gas Train: Factory mounted and wired gas train complete with main gas pressure regulator. Standard gas trains comply with UL requirements. IRI or FM and other code requirements available upon request. 7. Boiler Junction Box: Control circuit junction box with terminal strips to permit checking individual control operations. 6. Burner Control Panel: Burner or boiler mounted for ease of operation and maintenance. 5. Air louver: Air louver, linkage and setting is visible for ease of monitoring, adjustment and cleaning. 4. Burner: Customer choice of single source of superior package or choice of burner manufacturers for efficient operation and ease of maintenance. Burners are specifically matched with the furnace diameter and length for complete/efficient combustion. Burners are available in gas or light or heavy oil and combination with air or pressure atomization of the oil, and Low NOx capabilities. 3. Studs, Washers and Brass Nuts: Front and rear doors are closed using studs with washers and brass nuts for ease of opening and closing. 2. Davited Doors: Davited doors allow for total access to the return tubes without interference of baffles or inner doors.

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18. Ceramic Fiber Blanket:
Front smokebox and doors lined
with space-age ceramic fiber blanket

17. Tube Design:
3 pass wetback design for optimum efficiency and economical operation.

16. Galvanized Coated Steel Jacket:
A 500 degree Fahrenheit acrylic silicone based paint finish is applied to the 22-gauge phosphate galvanized coated steel jacket.

15. Insulation:
Two inch 8-lb. density mineral fiber
insulation with an R factor of .27
which reduces heat loss through
the jacket and provides jacket support.

14. Lifting Eyes:
Heavy steel lifting eyes for ease of
handling.

13. Stack Outlet:
Flanged round rear smoke outlet requires only a stub stack for proper draft. Supports 2000 lb. dead weight

12. Rear Doors:
Split/hinged rear doors provide
access to the rear tubesheet and
third pass tube.

1. Single Source Responsibility:
Superior Boiler Works, Inc.
Seminole Boiler/Burner units are
covered by Superior’s warranty*
of 18 months from date of shipment
or 1 year from date of startup.

11. Wetback Turnaround:
Wetback turnaround eliminates the
need for refractory lining, baffles,
gaskets and provides additional primary heating surface for increased efficiency. Separate tube sheets allow for differences in expansion due to varying temperatures of the gasses.

10. Furnace:
Large corrugated furnace. Corrugated furnaces operate at a lower average metal temperature. This in turn reduces the linear expansion of the furnace, reducing the flexing of the tubesheets. This results in fewer tube leaks or serious cracking damage to the tubesheet.

9. Boiler Skid:
Structural steel skid-type base
supports and protects burner.

8. Gas Train:
Factory mounted and wired gas
train complete with main gas
pressure regulator. Standard gas
trains comply with UL requirements.
IRI or FM and other code requirements available upon request.

7. Boiler Junction Box:
Control circuit junction box with
terminal strips to permit checking
individual control operations.

6. Burner Control Panel:
Burner or boiler mounted for ease of operation and maintenance.

5. Air louver:
Air louver, linkage and setting is visible for ease of monitoring, adjustment and cleaning.

4. Burner:
Customer choice of single source of superior package or choice of burner manufacturers for efficient operation and ease of maintenance.
Burners are specifically matched with the furnace diameter and length for complete/efficient combustion. Burners are available in gas or light or heavy oil and combination with air or pressure atomization of the oil, and Low NOx capabilities.

3. Studs, Washers and Brass Nuts:
Front and rear doors are closed
using studs with washers and brass nuts for ease of opening and closing.

2. Davited Doors:
Davited doors allow for total access to the return tubes without interference of baffles or inner doors.

QUALITY IN ENGINEERING

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Waterside access is provided by (2) 3” x 4” handholes located in front tubesheet near the bottom of the shell in addition to (2) handholes on the bottom centerline. (1) 3” x 4” handhole or (1) 12” x 16” manway on the top centerline and (1) 3” x 4” handhole in the rear tubesheet.	All Superior Boiler Works units are manufactured to ASME code requirements with each unit inspected by a National Board of Boiler & Pressure Vessels registered inspector.	Demand 3/4” thick tubesheets and 9/l6” minimum tube hole ligament to decrease the possibilities of ligament cracks, warped and overheated tubesheet and better tube holding capabilities.

Full Front Tubesheet access is provided by split/davited doors. No electrical or fuel connections or linkage need be disconnected for access to the fireside. Front smokebox and doors are lined with ceramic fiber blanket.	Steam boilers _ large disengaging area and dry plate (High Pressure) or dry pan (Low Pressure) at the steam outlet assures high quality, dry steam.	Superior Wetback design incorporates the furnace at the lowest section of the boiler. Resulting in enhanced natural water circulation; which reduces the possibility of over-heating and formation of hot spots.

The wetback turnaround gives additional heating surfaces and results in cooler flue gas temperatures entering the 2nd pass, resulting in less tube leaks and cracked tube ends at the entrance to the 2nd pass. The wetback has the advantage of a lower temperature gradient across the tube sheet resulting in longer tubesheet life. The rear doors don’t require a cool down period before opening, as the the drybacks do.		3-pass wetback Ohio Special units are factory firetested to check electrical components for proper operation and adjustment of the fuel/air ratio for smooth ignition and firing.

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Standard Features: Units designed and fabricated to ASME Boiler and Pressure Vessel Code requirements. Section IV-15 psig, Section I –150 psig. Insulated with 2”-8 lb. Density mineral fiber insulation. Jacket material 22-gauge galvanized-phosphate coated steel. Davited front and rear doors. Rear access plug: 17” diameter Hand-holes, five 3” x 4” Man-way 12” x 16” Surface blow-down connection. 12 gauge thick tubes. Corrugated furnace, Section I. 3/4” tubesheet. Standard Trims: ASME safety valve(s). Water column with water level gauge glass, try cocks, low water cut-off & pump control, blow-down valve. Auxiliary low water cut-off with manual reset, probe in shell. Operating control. High limit control with manual reset. Firing rate control (Hi-Lo-off or modulating operation only). Pressure gauge with shutoff and inspectors gauge cocks. Control circuit terminal strips.

Standard Features:

Units designed and fabricated to ASME Boiler and Pressure Vessel Code requirements. Section IV-15 psig, Section I –150 psig.
Insulated with 2”-8 lb. Density mineral fiber insulation.
Jacket material 22-gauge galvanized-phosphate coated steel.
Davited front and rear doors.
Rear access plug: 17” diameter
Hand-holes, five 3” x 4”
Man-way 12” x 16”
Surface blow-down connection.
12 gauge thick tubes.
Corrugated furnace, Section I.
3/4” tubesheet.

Standard Trims:

ASME safety valve(s).
Water column with water level gauge glass, try cocks, low water cut-off &
pump control, blow-down valve.
Auxiliary low water cut-off with manual reset, probe in shell.
Operating control.
High limit control with manual reset.
Firing rate control (Hi-Lo-off or modulating operation only).
Pressure gauge with shutoff and inspectors gauge cocks.
Control circuit terminal strips.