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Small bronze inline check valve with threaded ends

Milwaukee Valve

Milwaukee Valve UP509 1/2" Bronze Spring Check Valve

SKU CH-K4Z8-JA51P

A 1/2 inch bronze spring check valve rated for 10 gpm flow and 300 psi at 150 degrees Fahrenheit

  • TypeOther
  • Low-lead bronze construction meets potable-water safety standards
  • Spring-loaded inline design closes automatically to stop backflow
  • Rated for 300 psi at 150 °F for reliable high-pressure service
  • Operates from -20 °F to 200 °F across seasonal temperature swings
  • 1/2-inch FNPT threads install directly into standard copper or steel piping

Bronze inline check valve

The Milwaukee Valve UP509 is a 1/2 inch bronze spring check valve built for potable-water lines. Its low-lead bronze body and brass seat meet lead-free requirements for drinking-water installations.

FNPT connections for copper or steel piping

Female NPT threads on both ends let the valve thread directly onto 1/2 inch copper adapters or steel nipples without extra fittings. The inline swing design keeps the flow path straight, so the valve adds minimal restriction to the supply run.

Rated for 10 gpm at 300 psi and 150 °F

The valve opens between .750 and 1.000 psi cracking pressure and seals reliably up to 200 °F. It is not rated for steam service, so sustained steam pressure should be avoided.

Highlights

  • Low-lead bronze construction meets potable-water safety standards
  • Spring-loaded inline design closes automatically to stop backflow
  • Rated for 300 psi at 150 °F for reliable high-pressure service
  • Operates from -20 °F to 200 °F across seasonal temperature swings
  • 1/2-inch FNPT threads install directly into standard copper or steel piping

Specifications

BrandMILWAUKEE VALVE
TypeOther

Questions about this item

What is the maximum water pressure this valve can handle at 150 degrees F?

The valve is rated for a maximum water pressure of 300 psi at 150 degrees F.

How much heat does the valve body see when water runs at the top rated temperature?

The bronze body is rated for a maximum temperature of 200 degrees F and a minimum of -20 degrees F.

What pipe threads must my plumbing have to connect this valve?

The valve uses 1/2 inch FNPT x FNPT connections for inline installation.

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