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Gray bronze inline spring check valve with FNPT threads

Milwaukee Valve

Milwaukee Valve UP548T 2in FNPT bronze spring check valve .750-1.000 psi 250 psi 353F

SKU CH-RWWB-S5WND

Bronze inline spring check valve for 2 in FNPT lines, .750 to 1.000 psi cracking pressure, 250 psi at 150 Degrees F, rated to 353 Degrees F

  • TypeOther
  • Bronze body resists corrosion for long service life
  • Inline spring design ensures reliable flow control
  • Cracking pressure .750 to 1.000 psi opens at low back-pressure
  • Rated 250 psi at 150 degrees F for demanding systems
  • Operates from -20 to 353 degrees F across wide temperature range

2" Bronze Spring Check Valve

The Milwaukee Valve UP548T is a 2-inch FNPT threaded bronze check valve designed for plumbing systems that require automatic back-flow prevention. It suits residential and light-commercial water lines where a compact inline valve is specified.

Inline spring construction

The valve uses an inline spring mechanism housed in a low-lead bronze body with bronze seat and seal material. Rated for 250 psi at 150 degrees F and a maximum temperature of 353 degrees F, it mounts horizontally and withstands a minimum temperature of -20 degrees F.

Replaces worn swing or lift check valves in 2"

The spring-loaded design closes faster than gravity-dependent valves, reducing water hammer when pumps cycle off. The jump is worth it when the existing valve chatters, leaks by, or cannot meet the .750 to 1.000 psi cracking pressure the system now demands.

Highlights

  • Bronze body resists corrosion for long service life
  • Inline spring design ensures reliable flow control
  • Cracking pressure .750 to 1.000 psi opens at low back-pressure
  • Rated 250 psi at 150 degrees F for demanding systems
  • Operates from -20 to 353 degrees F across wide temperature range

Specifications

BrandMILWAUKEE VALVE
TypeOther

Questions about this item

What does the 0.750 to 1.000 psi cracking pressure mean for flow?

The spring opens when upstream pressure exceeds 0.750 psi and fully opens by 1.000 psi, preventing backflow below that threshold.

What pipe size and thread type does the 2 in FNPT connection require?

It fits 2-inch nominal pipe with female NPT threads on both ends; male NPT nipples or adapters are needed to join the line.

How should the valve be oriented during installation?

Mount horizontally with the flow arrow pointing downstream; vertical installation can prevent the spring from seating correctly.

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