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Bronze swing check valve, two-inch FNPT connections, inline horizontal mount

Milwaukee Valve

Milwaukee Valve UP509 2 in FNPT Bronze Swing Check Valve 131 gpm

SKU CH-3MAR-ZS573

A 2-inch FNPT bronze swing check valve rated for 131 gpm flow at 300 psi and 150 °F

  • TypeOther
  • Handles 131 gpm for strong flow capacity
  • Operates up to 200 °F for hot-water systems
  • Withstands 300 psi at 150 °F for reliable pressure rating
  • Low-lead bronze body resists corrosion and meets safety standards
  • Cracking pressure .750 to 1.000 psi ensures positive sealing

Reliable Bronze Swing Check Valve

The Milwaukee Valve UP509 is a 2 in FNPT bronze swing check valve built for residential and light commercial plumbing. It allows water flow in one direction while automatically preventing backflow. With a rated capacity of 131 gpm, it suits main supply lines and irrigation systems where dependable non-return performance is required.

Inline Horizontal Mounting Design

The valve features an inline swing mechanism inside a low-lead bronze body with FNPT x FNPT threaded connections. It installs horizontally and operates within a cracking pressure range of .750 to 1.000 psi. Bronze seat and seal materials handle water temperatures from -20 to 200 Degrees F and pressures up to 300 psi at 150 Degrees F, though steam service is not rated.

Ready for Immediate Installation

No separate gaskets, flanges or actuators are included in the package; the threaded ends connect directly to matching pipe fittings. The all-bronze construction eliminates the need for additional corrosion-resistant coatings. Installers can thread the valve into place and pressure-test the line without waiting for specialised tools or sealing compounds.

Highlights

  • Handles 131 gpm for strong flow capacity
  • Operates up to 200 °F for hot-water systems
  • Withstands 300 psi at 150 °F for reliable pressure rating
  • Low-lead bronze body resists corrosion and meets safety standards
  • Cracking pressure .750 to 1.000 psi ensures positive sealing

Specifications

BrandMILWAUKEE VALVE
TypeOther

Questions about this item

What flow rate does the 2 in FNPT connection support?

The 2 in FNPT connection supports a flow rate of 131 gpm through the bronze swing check valve.

What are the pipe size and connection type required for installation?

This valve requires a 2 in pipe with FNPT x FNPT threaded connections for proper mounting.

How should the valve be oriented during installation, and what is the common mistake?

Install the valve horizontally as specified; the common mistake is mounting it vertically which prevents proper swing mechanism operation.

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