Steam Boilers: Horizontal Three Pass Firetube • Vertical Firetube
Aldrich Company manufactures three pass and vertical firetube steam boilers for low pressure applications. The Classic Series modified Scotch Marine “Scotch Box” boiler is designed to fit through a standard doorway.
STEAM BOILERS – CLASSIC SERIES THREE PASS FIRETUBE
A3S • A3S4 • A3S5 • AHFR
- 15 PSI Steam / 30, 40, 80 & 150 PSI Design Water Options
- 83 – 88% Efficiency
- Inventor of the “Scotch Box” Design
- “U-Type” Flex Joint
- All Steel Construction
- Thermal Shock Proof Resistance
- Water Surrounded Cylindrical Furnace for Highest Heat Transfer
- Water Cooled Reversing Chamber 4-Sided Wetback
- Capacities: 12 – 250 BHP
- Models up to 125 BHP Fit Through 36” Doorway
- Fuels: Gas • Oil • Combination Gas/Oil • Digester Gas
- Structural Channel Base
- Optional Field Erect Boilers
- Ideal for Multiple Boiler Installations
- Package with Aldrich Boiler Management Panel for Highest System Efficiency
- Ease of Maintenance, Access to Fire Side
STEAM BOILERS – VERTICAL FIRETUBE
D • DG
- 15 PSI Steam / 30 PSI Water
- 80 – 83% Efficiency
- All Steel Construction
- Thermal Shock Proof Design
- Water Surrounded Cylindrical Furnace for Highest Heat Transfer
- Capacities: 4 – 42 BHP
- Optional Tankless Coil for Indirect Loads
- Fuels: Gas • Oil • Combination Gas/Oil
- Ease of Maintenance, Access to Fire Side
