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Bronze Y-pattern swing check valve, half-inch FNPT ends, 2.625 inches long

Milwaukee Valve

Milwaukee Valve 515Y 1/2" Swing Y Check Valve 2.625 in

SKU CH-YX0D-AAS0W

Bronze Y-swing check valve with FNPT connections allows 10 gpm flow at .5 psi cracking pressure and handles 300 psi water pressure up to 425°F

  • Size1/2"
  • TypeOther
  • Handles 300 psi water pressure for reliable shut-off
  • Bronze body and seat resist corrosion at 425 °F max temperature
  • Y-pattern swing design gives full 10 gpm flow with only .5 psi cracking pressure
  • Mounts horizontally or vertically for flexible installation
  • 1/2" FNPT connections fit standard piping in a compact 2.625 in length

1/2" Bronze Y Swing Check Valve

The Milwaukee Valve 515Y is a 1/2 inch bronze check valve with a Y-pattern swing design. It uses FNPT x FNPT connections and is rated for 300 psi water pressure at 150 degrees F and 150 psi steam pressure. The valve operates between -20 and 425 degrees F with a cracking pressure of .5 psi and a flow capacity of 10 gpm.

Threaded FNPT installation suits standard piping

The valve installs directly onto 1/2 inch female NPT threads in either horizontal or vertical orientation. Full-flow Y-pattern design reduces pressure drop and debris buildup. Bronze-on-bronze seating requires clean threads and proper sealant to prevent leakage at the 300 psi rating. No special tools are needed beyond standard pipe wrenches.

Suits residential and light commercial water

Ideal for contractors and maintenance crews needing a compact bronze check valve for hot water, cold water, or low-pressure steam up to 150 psi WSP. Not suited for systems exceeding 425 degrees F or 300 psi water pressure. Buyers needing larger pipe sizes, different connection types, or higher pressure ratings should look at other valve configurations.

Highlights

  • Handles 300 psi water pressure for reliable shut-off
  • Bronze body and seat resist corrosion at 425 °F max temperature
  • Y-pattern swing design gives full 10 gpm flow with only .5 psi cracking pressure
  • Mounts horizontally or vertically for flexible installation
  • 1/2" FNPT connections fit standard piping in a compact 2.625 in length

Specifications

BrandMILWAUKEE VALVE
Size1/2"
TypeOther

Questions about this item

How can I confirm the 515Y valve is working after installation?

Observe flow in the correct direction through the FNPT connections; the bronze swing disc should open at 0.5 psi cracking pressure and close tightly against reverse flow up to 300 psi water pressure at 150°F or 150 psi steam.

What comes with the 515Y valve and what must I supply?

The valve body with FNPT x FNPT ends is included; you must provide 1/2 inch NPT pipe or fittings, thread sealant and any mounting hardware for horizontal or vertical orientation.

Which version of the 515Y should I choose for my system pressure and temperature?

Select this 1/2 inch bronze Y swing check rated 300 psi water at 150°F and 150 psi steam with a -20°F to 425°F range; it delivers 10 gpm full flow for compatible applications.

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