We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Bronze inline swing check valve, 4.75 inch body, FNPT connections

Milwaukee Valve

Milwaukee Valve 509 2" Swing Check Valve 4.75 in

SKU CH-756N-T3VGW

Bronze inline swing check valve with FNPT connections handles 131 gpm water flow at 200 psi and 150 °F

  • Size2"
  • TypeOther
  • Reliable flow control with inline swing mechanism
  • Handles up to 200 psi water pressure at 150°F
  • Operates from -20°F to 406°F temperature range
  • Bronze body and seat resist corrosion in plumbing systems
  • Cracking pressure of .750 to 1.000 psi ensures proper sealing

Milwaukee Valve 509 2" Swing Check Valve

The Milwaukee Valve 509 is a 2-inch bronze swing check valve designed for plumbing systems that need automatic backflow prevention. It suits residential, commercial and industrial piping where a reliable inline closure is required. The valve handles water, steam and compatible fluids in horizontal or vertical runs.

Critical specification: FNPT x FNPT connection

This valve uses female National Pipe Taper threads on both ends and fits a 2-inch nominal pipe. The FNPT x FNPT connection and 2-inch size are the single details that decide whether it matches the existing piping; verify both before ordering.

Installation notes and common issues

The valve installs by threading onto male NPT pipe ends with standard sealant or tape, and it mounts horizontally or vertically. The 0.750 to 1.000 psi cracking pressure means it opens with very low forward flow, so systems with minimal head pressure may not seat it fully. Bronze seats can wear faster in abrasive media, and the 125 psi steam limit must not be exceeded.

Highlights

  • Reliable flow control with inline swing mechanism
  • Handles up to 200 psi water pressure at 150°F
  • Operates from -20°F to 406°F temperature range
  • Bronze body and seat resist corrosion in plumbing systems
  • Cracking pressure of .750 to 1.000 psi ensures proper sealing

Specifications

BrandMILWAUKEE VALVE
Size2"
TypeOther

Questions about this item

How much water can flow through this 2 inch swing check valve in a real installation?

The valve is rated for 131 gallons per minute flow capacity when installed in a 2 inch piping system.

What does the 200 psi at 150 degrees F rating limit in practice?

That rating caps the maximum water pressure the bronze body can handle at elevated temperature; steam service is limited to 125 psi WSP.

What pipe threads and clearance does the 4.75 inch overall length require?

It uses female NPT threads on both ends and fits horizontal or vertical runs with 4.75 inches of straight pipe space.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.