1-1/2" FNPT Bronze Swing Y Check Valve MPN:509Y 1 1/2"

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Brand: Milwaukee
Part #: 509Y 1 1/2"
UPC: 697988642454
SKU
510-G4062904
Regular Price $279.71 Special Price $199.79

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1-1/2" FNPT Bronze Swing Y Check Valve

The Milwaukee 1-1/2in FNPT Bronze Swing Y Check Valve is a reliable and efficient solution for a variety of applications, including commercial and industrial plumbing systems. Its bronze construction ensures durability and resistance to corrosion, while its single-flow design allows for smooth and consistent water flow. With a cracking pressure of 0.5 psi, this valve is ideal for use in systems where low pressure is a concern. Its horizontal and vertical mounting options make it versatile and easy to install. Suitable for temperatures up to 425°F, this valve is perfect for use in hot water systems, steam lines, and more.

Top product features:

  • The product has a Flow Design of Single, allowing for unidirectional flow.
  • The product is a Y Swing Check Valve, which enables easy installation and maintenance.
  • The product has a Cracking Pressure of 0.5 psi, allowing for precise control over fluid flow.

Top product applications:

  • Industrial Water Systems
  • Steam Distribution Systems
  • HVAC Systems

The MILWAUKEE VALVE 509Y 1-1/2 in. FNPT bronze swing Y check valve is a check valve for use in one-way flow applications involving gas, oil, steam, and water lines. It features a Y-style body with a swing check mechanism, Cv 56 with 76 gpm flow rating, and female NPT connections on both ends. The cast bronze body, bronze seat and seal, and brass check mechanism have a specified temperature range of -20 to 425 Degrees F.

Key Features:

  • Valve type: Swing Y check valve with Y-pattern body and swing mechanism
  • Size: 1-1/2 in. nominal valve size with 1-1/2 in. FNPT x FNPT connections
  • Body material: Cast bronze body with bronze seat and seal
  • Internal mechanism: Brass swing check mechanism
  • Media compatibility: Gas, oil, steam, and water
  • Pressure ratings: 200 psi WOG, 125 psi SWP/WSP, and 200 psi at 150 Degrees F max water pressure
  • Temperature range: -20 to 425 Degrees F
  • Cracking pressure: 0.5 psi
  • Flow capacity: Cv 56 with 76 gpm flow rating
  • Mounting orientation: Horizontal or vertical
  • Overall dimensions: 4 in. overall length, 4 in. overall height, 1-3/4 in. width
  • 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: 4.60
  • Package Width: 4.50
  • Package Height: 3.00
  • Package Weight: 4.10
Product info last updated on February 6, 2026 10:59pm UTC Category: Pipes, Valves and Fittings
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