Series 250

Two-pass semi wet-back scotch marine boiler. Two pass design eliminates refractory baffles between flue gas passes. Efficiencies are equal to 3 and 4 pass boilers in many cases.

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

Standard Features

• 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 davited rear door 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 mineral wool, lagged with 22 gauge grip jacketing, baked on epoxy enamel to resist chipping and fading.
• Fire tubes 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.

Standard Steam Trim

• 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

Standard Water Trim

• 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

Request A Quote

Translate Our Site