Check Valve, 509Y Series, Y Swing, 3/8 in, FNPT x FNPT, Bronze MPN:509Y 3/8"

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Brand: Milwaukee
Part #: 509Y 3/8"
UPC: 697988642409
SKU
510-G3919212
Regular Price $111.99 Special Price $79.99

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Check Valve, 509Y Series, Y Swing, 3/8 in, FNPT x FNPT, Bronze

This 3/8in FNPT Bronze Swing Y Check Valve from Milwaukee is a reliable and efficient solution for various applications, including plumbing, HVAC, and industrial processes. Its single-flow design and Y swing mechanism ensure smooth fluid flow, while its bronze body and valve components provide durability and resistance to corrosion. With a maximum temperature rating of 425°F and a maximum water pressure of 200 psi, this check valve is suitable for a wide range of applications, including residential and commercial plumbing systems. Its compact size and horizontal/vertical mounting orientation make it easy to install in tight spaces.

Top product features:

  • Swing design allows for easy installation and removal of the valve
  • Bronze construction provides durability and resistance to corrosion
  • Cracking pressure of 0.5 psi ensures precise flow control

Top product applications:

  • Plumbing systems for residential and commercial buildings
  • Industrial process control systems
  • Steam power plants
  • The MILWAUKEE VALVE 509Y is a 3/8 in. swing Y check valve with a bronze body and FNPT x FNPT connections. It is configured for one-way flow applications in general-purpose service with gas, oil, steam, and water. The Y-style body features a full-flow design

  • overall length: 2.13 in.

    Key Features:

    • Valve type: Swing Y check valve.
    • Body material: Cast bronze body with bronze seat and seal materials.
    • Check mechanism: Brass swing mechanism.
    • Connection size and type: 3/8 in. FNPT x FNPT with female connections on both ends.
    • Cracking pressure: 0.5 psi.
    • Flow rating: 6 gpm with Cv of 4.3.
    • Pressure ratings: 200 psi WOG, 125 psi SWP, and 200 psi at 150 degrees F maximum water pressure.
    • Temperature range: -20 degrees F to 425 degrees F.
    • Mounting orientation: Horizontal or vertical.
    • Standards: ASTM B16, ASTM B505, ASTM B584, MSS SP-80.


Additional Information

  • Country of Origin: US
  • Drop Ship Item: No
  • Blind Ship Eligible: No
  • LTL Freight Required: No
  • Lead Time: Ships in 1 days
  • Minimum Order Quantity: 1
  • Unit of Measure: EA
  • Package Length: 2.30
  • Package Width: 2.30
  • Package Height: 1.30
  • Package Weight: 0.55
Product info last updated on February 12, 2026 3:53pm UTC Category: Pipes, Valves and Fittings
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