Hurst Boiler S200-4W-0020-100 Two Pass Dry Back Scotch Marine Boiler (Hot Water Version)

• Make: Hurst Boiler
• Model code: S200-4W-0020-100
• Series: Series 200
• Type: Fire tube
• Design pressure: 6.9 bar

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 temperature control Modulating temperature control Probe type low water cut-off control Combination pressure, temperature, altitude gauge Hot water return baffle for shock resistance