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Scotch Marine Boilers
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Item # FPS-70, 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

    70 bhp

    Steam or Hot Water

    2,343 mbh

    Steam, @ 212 F

    2,415 pph

    Natural Gas, @ 1,000 btu/ft3

    2,858 cfh

    Light Oil, @140,000 btu/gal

    20.15 gph

    Heavy Oil, @ 150,000 btu/gal

    19.1 gph


    Characteristic Data

    Heating Surface, Fireside

    350 sf

    Furnace Volume

    28.1 cf

    Furnace Heat Release Rate

    101,592 bcfh

    Steam Disengaging Area

    31.8 sf

    Steam Space

    20 cf

    Water Content, Steam Application

    556 gal

    Water Content, Water Application

    706 gal

    Shipping/Dry Weight, Approx.

    7,200 lb

    Operating/Wet Weight, Approx.

    13,100 lb


    Boiler Dimensions

    A - Overall Length

    View
    164-3/8 in

    A' - Overall Length w/o Burner

    View
    132-1/2 in

    B - Shell Length

    View
    108-3/4 in

    C - Tube Removal Clearance

    View
    114-3/4 in

    D - Rear Door Swing Clearance

    View
    37-3/4 in

    E - Platform Length

    View
    44-7/8 in

    F - Skid Length

    View
    140-3/8 in

    G - Fr. Saddle Location

    View
    9 in

    H - Distance Between Saddles

    View
    79-1/2 in

    I - Saddle Side Width

    View
    7 in

    J - Overall Width

    View
    77-1/4 in

    J' - Overall Width, w/o Trims

    View
    59-1/8 in

    K-Saddle Front Width

    View
    44 in

    L - Overall Height

    View
    90-3/8 in

    M - Normal Water Line

    View
    55-1/2 in

    N - Boiler Center Height

    View
    39-5/16 in

    0 - Furnace Center Height

    View
    26-5/16 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
    32 in

    S-Supply Height

    View
    72-5/8 in

    T - Return C.L. to Shell Front End

    View
    78 in

    U - Return Height

    View
    17-1/4 in

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

    View
    7 in

    W - Flue Outlet Height

    View
    70-5/8 in


    Boiler Service Connection Sizes

    a - Supply, Steam/Hot Water

    View
    8/4 NPS

    b - Flue Outlet

    View
    12 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
    3 NPT


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     MORE IMAGES 

    ·  Model FPS Drawing 1

    ·  Model FPS Drawing 2


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