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DIMENSIONAL DATA & RATINGS	SPECIFICATION SHEETS
30# & 160# Steam Dimensional Data 30# & 160# Steam Ratings	Sample Specification Total Electrical Loads Gas Pressure

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Please drag pointer over number to see information.
	20. Ceramic Fiber Blanket: Front smokebox and doors are lined with space-age ceramic fiber blanket. 19. Return Water Inlet: Return water inlet complete with a reducing 45 degree elbow. The resulting jet provides for the mixing of the return water with the hot water in the boiler. 18. Tubes: Efficient, economical 3 pass tube design for optimum efficiency and economical operation. 17. Manway: Manways are standard equipment on boilers 13-1000 and larger. 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. Hot Water Return: Hot water return with dip tube to help stem the entrance of air into the system. 14. Lifting Eyes: Heavy steel lifting eyes for ease of handling. 13. Insulation: Two-inch mineral fiber insulation with 8-lb. density per square ft. which reduces heat loss through the jacket and provides jacket support. 12. Rear Davit Arm: Roller-bearing supported davit makes possible a reduced opening space and can be arranged for left or right hand opening. 11. Rear Door: The Seneca’s rear door is sealed with a ceramic fiber blanket for ease of maintenance and to assure a gas tight seal. 10. Rear Refractory: Rear refractory is field castable providing for ease of maintenance and eliminates costly refractory repairs. 9. Furnace: Location of large diameter furnace in bottom third of the boiler provides for complete combustion and maximum heat transfer while being in contact with coolest/boiler water. 8. Boiler Skid: Structural steel skid-type base supports and protects burner. 7. Gas Train: Factory installed gas train is equipped with main gas pressure regulator. Gas train can be mounted on either side of the boiler for ease of installation. Standard gas trains comply with UL requirements and can be modified to meet IRI, FM, CSD-1 and NFPA85A. 6. Handholes: Two handholes are supplied in the front tubesheet for ease of maintenance. 5. Air louver: Air louver, linkage and setting is visible for ease of monitoring, adjustment and cleaning. 4. Burner: UL Labeled boilers are supplied with Gordon-Piatt burners. Other boiler burner combinations are available upon request. All burners are specifically matched with the pressure vessel for complete, efficient combustion. Burners are available in either gas or oil, or in a combination of gas and oil using either air or pressure atomization of the oil. 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 front doors allow for total access to the return tubes without interference of baffles or inner doors.

Please drag pointer over number to see information.

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

19. Return Water Inlet:
Return water inlet complete with a reducing 45 degree elbow. The resulting jet provides for the mixing of the return water with the hot water in the boiler.

18. Tubes:
Efficient, economical 3 pass tube design for optimum efficiency and economical operation.

17. Manway:
Manways are standard equipment on boilers 13-1000 and larger.

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. Hot Water Return:
Hot water return with dip tube to help stem the entrance of air into the system.

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

13. Insulation:
Two-inch mineral fiber insulation with 8-lb. density per square ft. which reduces heat loss through the jacket and provides jacket support.

12. Rear Davit Arm:
Roller-bearing supported davit makes possible a reduced opening space and can be arranged for left or right hand opening.

11. Rear Door:
The Seneca’s rear door is sealed with a ceramic fiber blanket for ease of maintenance and to assure a gas tight seal.

10. Rear Refractory:
Rear refractory is field castable providing for ease of maintenance and eliminates costly refractory repairs.

9. Furnace:
Location of large diameter furnace in bottom third of the boiler provides for complete combustion and maximum heat transfer while being in contact with coolest/boiler water.

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

7. Gas Train:
Factory installed gas train is equipped with main gas pressure regulator. Gas train can be mounted on either side of the boiler for ease of installation. Standard gas trains comply with UL requirements and can be modified to meet IRI, FM, CSD-1 and NFPA85A.

6. Handholes:
Two handholes are supplied in the front tubesheet for ease of maintenance.

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

4. Burner:
UL Labeled boilers are supplied with Gordon-Piatt burners. Other boiler burner combinations are available upon request. All burners are specifically matched with the pressure vessel for complete, efficient combustion. Burners are available in either gas or oil, or in a combination of gas and oil using either air or pressure atomization of the oil.

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 front doors allow for total
access to the return tubes without
interference of baffles or inner doors.

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

QUALITY IN ENGINEERING

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Full front tube sheet access is provided by split/davited doors. No electrical, fuel lines or linkage need be disconnected for access to the fireside. Front smokebox doors are lined with ceramic fiber blanket.	Full rear tubesheet access is standard by means of the davited rear doors or through the 17” diameter access in units 70 BoHP and larger. Available as an option on smaller units.	Waterside access is provided by two 3” x 4” handholes in the front tubesheet near the bottom of the shell in addition to (2) handholes on the bottom centerline.

Segmented rear refractory blocks/bridge formed from 2450 degrees F castable refractory for long life and ease of maintenance or repair.	Davited rear door allows for total fireside access and reduces opening space required for hinged doors - either right or left hand swing. Roller bearing supported davit provides ease of opening and closing.	All Seneca boilers can be supplied with optional blending pumps and insulated piping

All Seneca boiler/burner units are manufactured to ASME code requirements; each unit is checked by a registered inspector of the National Board of Boiler and Pressure Vessel Inspectors.	Seneca’s 3-pass gas travel maintains good gas velocities while maintaining moderate gas side pressure drops, resulting in high gas-to water heat transfer and reduced blower motor loads.	Factory fire test - each packaged boiler burner unit undergoes a complete fire test, including a thorough check of all electrical components and adjustment of the combustion.

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Superior Boiler Works, Inc. has been manufacturing Scotch Marine Boilers in Hutchinson, Kansas since 1940. Over twenty thousand of our boilers have been shipped throughout the United states and to many foreign countries. Their superior performance is evidenced by the highest recommendation that can be given a product - the many customers who have purchased their second, third, tenth and even twentieth units. Superior Boiler Works, Inc., in conjunction with our network of independent sales and service organizations, forms an unbeatable team geared to meet your needs.

Superior Boiler Works, Inc. has been manufacturing Scotch Marine Boilers in Hutchinson, Kansas since 1940. Over
twenty thousand of our boilers have been shipped throughout the United states and to many foreign countries. Their
superior performance is evidenced by the highest recommendation that can be given a product - the many customers
who have purchased their second, third, tenth and even twentieth units. Superior Boiler Works,
Inc., in conjunction with our network of independent sales and service organizations, forms an unbeatable team
geared to meet your needs.