Scotch Marine Boilers feature 2-pass design.
Press Release Summary:
Available in steam or hot water versions with 15-800 hp ratings and pressures to 300 psig, Series 250 features 2-pass design that eliminates refractory baffles between flue gas passes. Units have front-mounted smoke box with slip-on stack connector and large combustion chamber with low heat release for complete combustion. Built in accordance with ASME Codes, boilers are insulated with 2 in. high-density mineral wool, lagged with 22 gauge grip jacketing, and have baked on epoxy enamel.
Original Press Release:
Hurst Introduces Latest Midsize Scotch Marine Boiler
Series 250 Two Pass Dry Back Packaged Scotch Boilers
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
o Two-pass design eliminates refractory baffles between flue gas passes.
o Minimum maintenance with rugged construction for extra-long life.
o Enhanced heating surfaces with rifled tubes.
Standard Features
o 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.
o Large combustion chamber with low heat release for complete combustion.
o Smoke box is front-mounted with slip-on stack connector.
o Access to fireside is accomplished with davited rear door and with split front doors. Flame observation ports are on front and rear.
o Openings for cleanout inspection of waterside are provided with 3" x 4" hand holes, and with 12" x 16" manholes (80 HP up).
o Insulated with 2" high-density mineral wool, lagged with 22 gauge grip jacketing, baked on epoxy enamel to resist chipping and fading.
o 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).
o 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
o Operating & limit pressure control
o Modulating pressure control (when appl.)
o Water column with gauge glass, M-M 157 combination low water cut-off & pump control
o Probe Aux, L.W.C.O.
o Steam pressure gauge, syphon & test cock
o Water column drain valve
o Safety relief valve(s) per ASME Code
Standard Water Trim
o Operating & limit temperature control
o Modulating temperature control (when appl.)
o Probe type low water cut-off control
o Combination pressure, temperature, altitude gauge
o Hot water return baffle for shock resistance
o Safety relief valve(s) per ASME Code
Contact:
Hurst Boiler & Welding Co., Inc.
100 Boilermaker Lane
Coolidge, GA 31738-0530
229-346-3545
www.hurstboiler.com
info@hurstboiler.com
