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    Fluid Control Equipment

    Pressure Reducing Valves for Process Steam (with Built-in Separator & Trap)

    COS Series

    Troublefree Pressure Reducing Valves

    COSPECT®’s built-in strainer, Super Cyclonical Effects Separator (SCE) and Free Float® steam trap help prevent scale, rust and condensate from entering the pressure reducing valve (PRV) or reaching the important interior parts.

    In particular, the cyclone separator forcibly removes 98% of the condensate from the flow at the inlet side, thereby greatly reducing condensate-induced erosion of parts such as the main valve.

    While the standard service life of a PRV for steam is often less than a few years, many TLV COSPECT® users are still using their COSPECT® PRVs more than 10 years after installation. Such long service life is a testimony to COSPECT®'s effectiveness in countering scale and condensate, some of the most common sources of problems for PRVs in steam systems.

    COSPECT® Pressure Reducing Valves  Pamphlet (715 KB)

    Benefits and Features

    Improved Quality of Material Being Heated
    • Delivers Stable Pressure 
      Achieves secondary pressure accuracy within ±0.01 MPa of the set level. Even if the steam flow (load) to the equipment or the primary pressure at the pressure reducing valve changes, the Shock-Absorbing Spherical Piston (SAS) supplies steam at a constant pressure in order to prevent temperature fluctuation downstream.
    • Supplies Dry Steam 
      The built-in Cyclone Separator removes condensate from steam with a condensate separation efficiency of 98%. Condensate entrained in the steam is removed, and a strainer further removes any scale. The condensate that is separated out is discharged through the built-in Free Float® steam trap. 
      The increased quality of the steam contributes to improved heat conductivity.
    Easy to Adjust

    Pressure adjustment is simple; just use the cover cap as the adjustment spanner.

    Long Service Life

    Rust presents a high risk to vital areas of the system. To eliminate this, all major valve components are made of stainless steel to prevent rust and corrosion. Additionally, the inclusion of a strainer in the piping installation prevents the inflow of rust and other debris, protecting the valve components and contributing to a long service life.

    Application Areas

    Recommended for processes requiring steam at a stable pressure and processes such as atomizers in which steam comes into direct contact with the product.

    • Reactor kettles,
    • Dryers,
    • Heat exchangers,
    • Presses,
    • Steamers
    • Blowers
    • Atomizers, etc.

    Product Details

    ModelPhotoConnectionBody MaterialPMO (MPaG)TMO (°C)Primary Pressure (MPaG)Secondary Pressure (MPaG)Max. Flow Capacity (kg/h)SpecificationsManual
    COS-3ScrewedCast Iron 
    (FC250)
    0.32200.1 - 0.30.01 - 0.05950Specifications / EU SpecificationsManual
    Flanged
    COS-16ScrewedCast Iron 
    (FC250)
    1.62200.2 - 1.60.03 - 1.3419,800Manual
    Flanged
    COS-21ScrewedDuctile Cast Iron 
    (FCD450)
    2.12201.35 - 2.10.55 - 1.7519,000SpecificationsManual
    Flanged
    • PMO = Maximum Operating Pressure
    • TMO = Maximum Operating Temperature

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

    For data sheets including PN25/40 flanged connections, please visit our UK website.

     

    Product Related Information