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Small bronze inline swing check valve with threaded ends, 2.125 inches long

Milwaukee Valve

Milwaukee Valve 510T 1/4" Swing Check Valve 2.125 in

SKU CH-05MJ-26R8J

A 1/4-inch inline bronze swing check valve with PTFE seals, rated for 300 psi water pressure and 3.3 gpm flow

  • Size1/4"
  • TypeOther
  • Bronze body resists corrosion for long service life
  • PTFE seal handles temperatures from -20 to 406 Degrees F
  • 750 to 1.000 psi cracking pressure prevents unwanted backflow
  • Installs horizontally or vertically for flexible piping
  • 3 gpm flow capacity at 300 psi water pressure

Valve Purpose and Fit

The Milwaukee Valve 510T is a 1/4-inch bronze swing check valve designed for inline flow control in plumbing and hydronic systems. It suits installers who need reliable backflow prevention on small-diameter lines carrying water or steam.

Bronze Body and PTFE Seal

The valve body is bronze with a bronze seat and PTFE seal, rated for 300 psi water pressure at 150 degrees Fahrenheit and 150 psi saturated steam. Female NPT threads on both ends allow direct pipe connection, while the inline swing mechanism operates in horizontal or vertical mounting orientations with a cracking pressure between 0.750 and 1.000 psi.

Confirm Thread Size and Pressure Class

Verify that your piping uses 1/4-inch NPT threads and that system pressure does not exceed 300 psi for water or 150 psi for steam. The valve handles temperatures from -20 to 406 degrees Fahrenheit and delivers a flow coefficient of 3.3 gpm, so ensure these limits match the application before ordering.

Highlights

  • Bronze body resists corrosion for long service life
  • PTFE seal handles temperatures from -20 to 406 Degrees F
  • 750 to 1.000 psi cracking pressure prevents unwanted backflow
  • Installs horizontally or vertically for flexible piping
  • 3 gpm flow capacity at 300 psi water pressure

Specifications

BrandMILWAUKEE VALVE
Size1/4"
TypeOther

Questions about this item

What pressure does the 0.750 to 1.000 psi cracking pressure allow flow to start?

The valve begins to open between 0.750 and 1.000 psi differential, so flow starts once upstream pressure exceeds downstream pressure by that amount.

What pipe threads and orientation does the 1/4" FNPT x FNPT body require?

It has female NPT threads on both ends and can be mounted horizontally or vertically with the flow arrow pointing up.

How is the PTFE seal installed, and what step is often missed?

The PTFE seat is integrated into the bronze body; the common mistake is forgetting to apply pipe thread sealant on the FNPT connections before tightening.

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