1-1/4" FNPT Bronze Swing Y Check Valve MPN:515Y 1 1/4"

Discount: See in Cart
Free Shipping
In Stock
Brand: Milwaukee
Part #: 515Y 1 1/4"
UPC: 697988642546
SKU
510-G4191774
Regular Price $326.19 Special Price $232.99

BBB Accredited - ResellerRatings Elite Member - SBA Service-Disabled Veteran-Owned Certified

1-1/4" FNPT Bronze Swing Y Check Valve

The Milwaukee 1-1/4in FNPT Bronze Swing Y Check Valve is a reliable and efficient solution for various applications. Suitable for use in both horizontal and vertical orientations, this valve ensures smooth flow control while preventing backflow in plumbing systems. Its bronze construction withstands extreme temperatures, from -20°F to 425°F, and can handle water pressures up to 300 psi at 150°F. Ideal for use in commercial and industrial settings, this check valve is perfect for applications such as water treatment, HVAC, and industrial processes, offering a long-lasting and maintenance-free operation.

Top product features:

  • 1-1/4in FNPT Bronze Swing Y Check Valve from Milwaukee
  • Swing design allows for flow in both directions
  • Bronze body and seat materials provide corrosion resistance

Top product applications:

  • Plumbing systems for residential and commercial buildings
  • Industrial steam distribution systems
  • Water treatment plants and facilities
  • The MILWAUKEE VALVE 515Y is a 1-1/4 in. swing Y check valve with a bronze body and FNPT x FNPT threaded connections. It is intended for one-way flow in general-purpose piping systems handling gas, oil, steam, and water. The Y-style body and swing check mechanism are specified with a 0.5 psi cracking pressure, 54 gpm flow rating, and Cv of 39.

    Key Features:

    • Valve type: Swing Y check valve with Y-style body and single-flow design
    • Body material: Bronze
    • manufacturer-stated body material: Cast Bronze
    • Check mechanism: Swing bronze mechanism with bronze seat and bronze seal
    • Connection size and type: 1-1/4 in. FNPT x FNPT with female NPT connections on both ends
    • Pressure ratings: 300 psi WOG, 150 psi SWP, maximum water pressure 300 psi at 150 degrees F, maximum steam pressure 150 psi WSP
    • Temperature range: -20 degrees F to 425 degrees F
    • Flow capacity: 54 gpm
    • Cv of 39
    • Mounting orientation: Horizontal or vertical
    • Dimensions: 3.56 in. overall length, 3-3/4 in. overall height, 1-1/2 in. width
    • Standards: Meets multiple ASTM and MSS standards


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: 4.60
  • Package Width: 2.00
  • Package Height: 1.90
  • Package Weight: 3.15
Product info last updated on February 25, 2026 7:35am UTC Category: Pipes, Valves and Fittings
Copyright © 2026 Veratics, Inc dba GoVets.
In stock