Hurst - Model 200 Series - Two Pass Dry Back Scotch Marine Boiler

Available in Steam or Hot Water Versions - 15 - 800 HP Pressures to 300 psig

• Two-pass design eliminates refractory baffles between flue gas passes.
• Minimum maintenance with rugged construction for extra-long life.

• Boiler is of the two-pass, scotch type, built and stamped in accordance with the requirements of the ASME Code, and listed by the National Board of Boilers and Pressure Vessel Inspectors.
• Large combustion chamber with low heat release for complete combustion.
• Smoke box is front-mounted with slip-on stack connector.
• Access to fireside is accomplished with hinged and davited rear door (40 HP & larger) and with split front doors. Flame observation ports are on front and rear.
• Openings for cleanout inspection of waterside are provided with 3” x 4” hand holes, and with 12” x 16” manholes (80 HP up).
• Insulated with 2” high-density mineralwool, lagged with 22 gauge grip jacketing, baked on epoxy enamel to resist chipping and fading.
• Firetubes are rolled and beaded on power boilers, expanded and flared on low pressure boilers (2” dia. through 30 HP, 2 1/2” dia. 40 HP and up).
• Supports include lifting lugs securely welded to the top of shell; structural steel support legs on skids support the boiler so that special foundations are not required.

• Operating & limit pressure control
• Modulating pressure control (when appl.)
• Water column with gauge glass, M-M 157 combination low water cut-off & pump control
• Probe Aux, L.W.C.O.
• Steam pressure gauge, syphon & test cock
• Water column drain valve
• Safety relief valve(s) per ASME Code

• Operating & limit temperature control
• Modulating temperature control (when appl.)
• Probe type low water cut-off control
• Combination pressure, temperature, altitude gauge
• Hot water return baffle for shock resistance
• Safety relief valve(s) per ASME Code