Easco Boiler Corp. | Field Erected & Packaged Quality Steel Boilers A Division of THE A.L. EASTMOND & Sons Corporation
Scotch Marine Boilers
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Item # FPS-125, MODEL FPS - FOUR PASS SCOTCH MARINE BOILER


EASCO Four pass scotch marine design has higher thermal efficiency, up to 3% more efficient than a 3-pass boiler design. EASCO FPS model is wet back fire tube is designed to increase longevity and enhanced durability, has larger steam space and disengaging area. Available in 15psig steam and up to 160psig water design, submersible tank less Domestic Hot water coils are optional.

  • High Efficiency
  • Low Heat Release
  • Low Furnace Pressure
  • 5 Square Feet of Heating Surface per Boiler Horsepower
  • Large Steam Space and Disengaging Area





  • Boiler Rating  · Characteristic Data  · Boiler Dimensions  · Boiler Service Connection Locations  · Boiler Service Connection Sizes

    Boiler Rating

    Horse Power

    125 bhp

    Steam or Hot Water

    4,184 mbh

    Steam, @ 212 F

    4,313 pph

    Natural Gas, @ 1,000 btu/ft3

    5,103 cfh

    Light Oil, @140,000 btu/gal

    36 gph

    Heavy Oil, @ 150,000 btu/gal

    34 gph


    Characteristic Data

    Heating Surface, Fireside

    625 sf

    Furnace Volume

    45.9 cf

    Furnace Heat Release Rate

    111,154 bcfh

    Steam Disengaging Area

    46.1 sf

    Steam Space

    32.2 cf

    Water Content, Steam Application

    865 gal

    Water Content, Water Application

    1,106 gal

    Shipping/Dry Weight, Approx.

    10,600 lb

    Operating/Wet Weight, Approx.

    19,800 lb


    Boiler Dimensions

    A - Overall Length

    View
    201-1/2 in

    A' - Overall Length w/o Burner

    View
    167 in

    B - Shell Length

    View
    141-1/4 in

    C - Tube Removal Clearance

    View
    147-1/4 in

    D - Rear Door Swing Clearance

    View
    40-3/4 in

    E - Platform Length

    View
    49-1/2 in

    F - Skid Length

    View
    175-1/2 in

    G - Fr. Saddle Location

    View
    9 in

    H - Distance Between Saddles

    View
    110 in

    I - Saddle Side Width

    View
    7 in

    J - Overall Width

    View
    83-1/4 in

    J' - Overall Width, w/o Trims

    View
    65-1/8 in

    K-Saddle Front Width

    View
    48 in

    L - Overall Height

    View
    96-3/8 in

    M - Normal Water Line

    View
    60-5/16 in

    N - Boiler Center Height

    View
    42-5/16 in

    0 - Furnace Center Height

    View
    28-5/16 in

    P - Shell Bottom Clearance

    View
    12 in

    Q - Skid Height

    View
    6 in


    Boiler Service Connection Locations

    R - Supply C.L. to Shell Front End

    View
    42 in

    S-Supply Height

    View
    78-5/8 in

    T - Return C.L. to Shell Front End

    View
    100 in

    U - Return Height

    View
    18-1/8 in

    V - Flue Outlet C.L. to Shell Front End

    View
    8 in

    W - Flue Outlet Height

    View
    76 7/16 in


    Boiler Service Connection Sizes

    a - Supply, Steam/Hot Water

    View
    8/4 NPS

    b - Flue Outlet

    View
    14 in

    c - Safety Valves

    View
    2 NPT

    d - Control Header

    View
    1 NPT

    e - Surface Blowdown

    View
    2 NPT

    f - Washout

    View
    2 NPT

    g - Return & FW, Steam/Hot Water

    View
    4/4 NPS

    h - Bottom Blowdown

    View
    2 NPT

    i - Aquastat

    View
    3/4 NPT

    j - Oil Preheater, Optional

    View
    2 NPT

    k - Top inspection/Manhole Access

    View
    12x16 NPT


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     MORE IMAGES 

    ·  Model FPS Drawing 1

    ·  Model FPS Drawing 2


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