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    4. Free Float® Steam Traps for Main Lines

    Fluid Control Equipment

    Free Float® Steam Traps for Main Lines

    SS Series/FS Series/SH Series

    Free Float® steam traps for main lines that provide a tight seal even under low condensate load conditions

    A typical characteristic of steam distribution mains is that the amount of condensate generated in them is usually quite small. Steam traps used for main drainage have long hours of operation and are often installed outdoors. These traps should therefore have the lowest possible functional steam loss to minimize operating cost over the long term and provide long, reliable service.

    The TLV SS / SH / FS series have been designed with precisely these points in mind, offering a range of features that make them ideal for use on steam distribution mains.

    Free Float® Steam Trap Series Pamphlet (1539 KB)

    QuickTrap® Series  Pamphlet (172 KB)

    Benefits and Features

    Energy Conservation

    The valve opening is under a continuous water-seal, so no steam can escape through the valve. In the case of small condensate loads, such as in superheated steam lines, the Free Float’s 3-point seating holds the float tightly against the valve opening to ensure that no steam is allowed to escape.

    Prevention of Start-up Trouble

    The automatic air vent design opens the air vent valve at start-up to discharge any low temperature air inside the system. This prevents air-binding, which can be caused by initial air.

    Long Service Life

    The spherical Free Float® rotates during operation, allowing any point on its surface to act as the valve seal and thus ensuring long service life.

    Application Areas

    • Steam main lines, steam headers, tracers, etc.

    Product Details

    Model Photo Connection Installation Orientation Body Material PMO (barg) TMO (°C) Discharge Capacity
    (kg/h)
    Specifications Manual
    SS1 Screwed Horizontal and Vertical Models Cast Stainless (ASTM A351 Gr.CF8) 21 400 205 Specifications Manual
    SS3N / SS3V Screwed Horizontal and Vertical Models Stainless (ASTMA240 Type 316L) 21 400 310 Specifications Manual
    Socket welded
    Flanged
    SS5N / SS5V Screwed Horizontal and Vertical Models Stainless (ASTM A240 Type 316L) 32 425 800 Specifications Manual
    Socket welded
    Flanged
    SS5NH / SS5VH Screwed Horizontal and Vertical Models Stainless (ASTM A240 Type 316L) 46 425 240
    Socket welded
    Flanged
    FS3 QuickTrap® Screwed Both Horizontal and Vertical Stainless (ASTMA240Type316L) 21 400 215 Specifications Manual
    Socket welded
    Flanged
    FS5 QuickTrap® Socket welded or
    Flanged
    Both Horizontal and Vertical Stainless (ASTM A240 Type 316L) 32 400 670 Specifications Manual
    FS5H QuickTrap® Both Horizontal and Vertical Stainless (ASTM A240 Type 316L) 46 425 245
    SH6NL Socket Welded or Flanged Horizontal Cast Steel (ASTM A216 Gr. WCB) 65 425 2000 Specifications Manual
    • PMO = Maximum Operating Pressure
    • TMO = Maximum Operating Temperature

    The latest version of each product's instruction manual can be found on this page.

    Product Related Information