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    3/4 inch Brass Swing Check Valve

    3/4 inch (DN20) horizontal check valves with a threaded connection can be used on lines supplying auxiliary systems where the pressure may rise above the primary system pressure. Brass non-return valve, swing type, low price, suitable for applications where backflow prevention is required.
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    Quality 3/4" swing check valve for sale online. It is a horizontal check valve with DN20, brass body and thread connection, used in pipeline systems to prevent the backflow of media and the release of media in the container.


    • Model: ATO-TK401
    • Nominal Diameter: DN20 (20mm)
    • 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: 190g

    Dimensions (Unit: mm)

    Brass swing check valve dimension

    DN L d H
    20 55 18 38.5


    ATO 3/4 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: Brass Swing Check Valve vs. Stainless Steel Swing Check Valve

    Brass swing check valves, primarily composed of brass, are suitable for non-corrosive applications like residential plumbing. In contrast, stainless steel swing check valves, made of stainless steel, offer superior corrosion resistance and are employed in more demanding environments, such as chemical plants and marine applications. Stainless steel valves are generally more durable but costlier than brass valves.

    When selecting between these valves, it's essential to consider the specific application requirements. Brass valves are cost-effective and perform well in standard situations where corrosion isn't a concern. In contrast, stainless steel valves are preferred when corrosion resistance and durability are paramount, making them a solid choice for use in harsh or corrosive environments. The decision should take into account factors like the type of fluid, environmental conditions, and budget constraints.

    Ultimately, the choice between brass and stainless steel swing check valves hinges on the specific needs of the application. Brass valves are a cost-effective solution suitable for everyday applications, while stainless steel valves are chosen for their ability to withstand highly corrosive environments and offer greater longevity, albeit at a higher price point. Careful consideration of the fluid, operating conditions, and budget will help in making the most appropriate selection.

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