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    3/4" Thermodynamic Steam Trap

    The provided 3/4 inch (DN20) thermodynamic steam trap is disc type steam trap used to remove condensate and other non-condensable gases from the system while minimizing steam loss.
    SKU: ATO-TST-20
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    Delivery date: 6-12 days

    High quality 3/4" (DN20) thermodynamic steam trap is flanged, fitted with a strainer and trap, disc type, used to remove condensate from process heating steam lines in industries such as chemical processing, food and beverage production, and pharmaceutical manufacturing.


    • Model: ATO-CS49H-16C-DN20
    • Nominal Diameter: DN20 (3/4 inch)
    • Connection Method: Flange
    • Nominal Pressure: 1.6Mpa
    • Max Work Temperature: 350℃
    • Weight: 2.84kg
    • Material: WCB


    • It has a steam or air thermal insulation device, which will not be affected by environmental humidity.
    • Thermodynamic type steam trap is equipped with a filter and drain valve.
    • It reduces the frequency of motion and lengthens the lifetime.
    • A thermodynamic steam trap is sensitive and reliable in operation with a large capacity.

    Dimensions(Unit: mm)

     Thermodynamic steam trap dimensions


    No. Part Name Material
    7 Bonnet 20Cr13
    6 Disc 20Cr13
    5 Seat 20Cr13
    4 Gasket PTFE
    3 Body WCB
    2 Screen 304
    1 Screw Plug 35
    DN L H1 H2 A B C b f n~φ
    20 150 55 58 105 75 55 16 2 4~φ14


    The thermodynamic steam trap is widely used in steam systems, particularly in applications where there is a high rate of condensate formation or where there is a need for rapid condensate removal. They are commonly used in processes such as steam heating, sterilization, and cooking, as well as in industrial processes such as chemical manufacturing and oil refining. 

    Steam trap applications

    Tips: Steam Trap vs. Check Valve

    Both steam traps and check valves are used in steam systems, but they serve different purposes.

    A steam trap is a device used to remove condensate and other non-condensable gases from steam systems while preventing the escape of live steam. It automatically opens to discharge condensate and air when they accumulate in the system and then closes again to prevent steam from escaping. A steam trap may have different types, such as mechanical, thermostatic, and thermodynamic, which all function differently.

    On the other hand, a check valve, also known as a non-return valve, is a device that allows the flow of fluid in one direction only. It is designed to prevent backflow, which can occur when pressure in a system changes or is reversed. Check valves are commonly used in steam systems to prevent the backflow of condensate or other fluids, which can cause damage to equipment or disrupt the flow of steam.

    In summary, the main difference between a steam trap and a check valve is that a steam trap is used to remove condensate and prevent live steam from escaping, while a check valve is used to prevent backflow in a steam system.

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