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Bronze Y-pattern swing check valve, half-inch FNPT connections, 2.625 inch overall length

Milwaukee Valve

Milwaukee Valve 508 1/2" Swing Y Check Valve 2.625 in

SKU CH-24AK-6TV5Z

Bronze Y-pattern swing check valve with 1/2 inch FNPT connections, 10 gpm flow and 0.5 to 0.75 psi cracking pressure

  • Size1/2 in
  • Prevents backflow with Y-swing check mechanism
  • Handles 400 psi water pressure at 150 Degrees F
  • Operates from -20 Degrees F to 550 Degrees F
  • Bronze body resists corrosion for long service life
  • Cracks open at just .500 to .750 psi

1/2″ Bronze Swing Y Check Valve

This 1/2″ bronze swing Y check valve provides one-way flow control in plumbing and hydronic systems. The Y-pattern body reduces turbulence while the swing disc opens under forward pressure and seals against reverse flow. Rated for water up to 400 psi at 150 °F and steam up to 200 psi WSP, it suits residential and light-commercial installations. The valve operates from -20 °F to 550 °F.

FNPT Connections and Horizontal Mounting

Verify that your piping uses 1/2″ female NPT threads on both ends to match the FNPT x FNPT connections. The valve must be installed in a horizontal orientation to ensure proper disc operation. Confirm that system pressure stays within the 400 psi water and 200 psi steam limits and that fluid temperature remains between -20 °F and 550 °F. The cracking pressure range of 0.500 to 0.750 psi determines when the disc begins to open.

Sustained High-Temperature Service

Under continuous load the bronze body and bronze seat maintain sealing integrity at temperatures up to 550 °F and pressures up to 400 psi for water service. The chrome-cobalt seal material resists wear during prolonged cycling. Flow capacity reaches 10 gpm with minimal pressure drop across the Y-pattern design. The valve is not intended for vertical mounting or for applications exceeding the stated pressure-temperature ratings.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $67.99
Pricier than about 64% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameMILWAUKEE VALVE
Product typeOther
Size & build
Size1/2 in

Questions about this item

What comes with the 508 valve and do I need any extra fittings?

The valve body includes bronze construction with FNPT x FNPT threads and a chrome-cobalt seal. You will need matching 1/2 in NPT pipe nipples or adapters to complete the installation.

How do I decide between the available cracking-pressure options?

The valve operates between .500 and .750 psi cracking pressure; choose the lower end for gravity-fed lines and the higher end when back-pressure must be kept to a minimum.

What does the 10 gpm flow rating mean when the valve is installed in a hot-water system?

At 150 °F and 400 psi water pressure the valve passes up to 10 gpm, so size the pump and piping to stay within that flow for reliable check-valve operation.

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