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    1-1/4 inch Brass Swing Check Valve

    Buy a 1-1/4" (DN32) check valve directly from a check valve supplier. It is a swing non-return valve with a 1.6Mpa working pressure and thread connection. Durable brass check valve is widely used in various pipeline projects such as water plants, papermaking, heating, refrigeration, petroleum, construction, etc.
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    The provided 1-1/4 inch brass check valve comes with 1.6Mpa working pressure, threaded connection and 32mm nominal diameter. Low price swing type check valve is used in pipeline systems to prevent the backflow of the medium and the release check of the medium in the container, may also be used on lines supplying auxiliary systems where the pressure may rise above the primary system pressure.


    • Model: ATO-TK401
    • Nominal Diameter: DN32 (32mm)
    • Valve Body Material: Brass
    • Connection Form: Thread
    • Valve Type: Horizontal Nor-return Valve
    • Applicable Temperature: -10°C≤t≤120°C
    • Working Pressure: 1.6Mpa
    • Weight: 410g

    Dimensions (Unit: mm)

    Brass swing check valve dimension

    DN L d H
    32 71 31 56


    ATO 1-1/4 inch brass horizontal swing check valve finds widespread usage across a variety of industries and applications, serving to prevent reverse flow and regulate fluid movement in plumbing systems, HVAC systems, industrial processes, water supply, irrigation, oil and gas pipelines, marine operations, and agriculture.

    Brass swing check valve applications

    Tips: Are brass swing check valves suitable for corrosive environments?

    Brass swing check valves are generally not the best choice for highly corrosive environments. While brass offers decent corrosion resistance in many applications, it may not withstand the harsh conditions of corrosive environments over the long term. In situations where the fluid being transported is highly corrosive or contains aggressive chemicals, it is often advisable to use materials with superior corrosion resistance, such as plastic check valves, stainless steel check valves, or specialized corrosion-resistant alloys.

    For corrosive environments, it's crucial to select a check valve material that can endure the specific chemical properties of the fluid and the conditions of the application. The choice of material should ensure the longevity and reliability of the valve, as well as the safety and efficiency of the overall system.

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