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Bronze Y-pattern swing check valve with FNPT ends

Milwaukee Valve

Milwaukee Valve 507 3/4" FNPT Bronze Swing Y Check Valve

SKU CH-6RMM-R4SYQ

Bronze swing Y check valve with 3/4 inch FNPT connections, rated for 600 psi at 150 degrees F and temperatures from -20 to 550 degrees F

  • Size3/4"
  • TypeOther
  • Prevents backflow with Y-pattern swing mechanism
  • Opens at low pressure between 0.750 and 1.000 psi
  • Bronze body withstands up to 550°F and 600 psi at 150°F
  • Chrome-cobalt seal handles temperatures down to -20°F
  • Installs horizontally or vertically with 3/4" FNPT connections

Milwaukee Valve 507 3/4" FNPT Bronze Swing Y Check

This bronze swing Y check valve features a 3/4 inch FNPT connection and a cracking pressure between 0.750 and 1.000 psi. It suits plumbing installations that require automatic backflow prevention in horizontal or vertical pipe runs. The Y-pattern body is designed for standard residential and commercial water systems.

Sustained load behaviour

The valve body withstands a maximum temperature of 550 degrees F and a minimum of -20 degrees F. It handles a maximum water pressure of 600 psi at 150 degrees F. Chrome-cobalt seal material maintains a tight seal across this temperature and pressure range during continuous operation.

Installation and common issues

The FNPT x FNPT ends thread directly onto 3/4 inch male pipe threads without special tools. Horizontal or vertical mounting orientation is supported per the specifications. Installers must verify that system pressure and temperature stay within the rated limits to avoid seat damage or leakage.

Highlights

  • Prevents backflow with Y-pattern swing mechanism
  • Opens at low pressure between 0.750 and 1.000 psi
  • Bronze body withstands up to 550°F and 600 psi at 150°F
  • Chrome-cobalt seal handles temperatures down to -20°F
  • Installs horizontally or vertically with 3/4" FNPT connections

Specifications

BrandMILWAUKEE VALVE
Size3/4"
TypeOther

Questions about this item

How much heat can the 550 Degrees F maximum temperature rating handle in continuous operation?

The bronze body and chrome-cobalt seal are rated to 550 Degrees F, so the valve withstands sustained high-temperature water or steam lines without degrading.

What piping must I already have to install the 3/4" FNPT connections?

You need 3/4 inch female NPT threaded pipe ends on both sides; the valve threads directly onto them with no extra adapters.

Will the 0.750 to 1.000 psi cracking pressure work with my older low-head gravity system?

Yes, the low cracking pressure range lets the swing disc open reliably even under the modest head pressure typical of older gravity-fed installations.

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