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Bronze inline check valve with sweat connections

Milwaukee Valve

Milwaukee Valve UP1509 1" Sweat Bronze Spring Check Valve

SKU CH-XRK5-DXH47

Inline swing check valve with bronze body and sweat connections, rated for 300 psi water pressure at 150 °F and 31 gpm flow

  • 1" sweat connection simplifies copper piping
  • Spring-loaded check prevents backflow automatically
  • Low-lead bronze body meets potable-water standards
  • 31 gpm flow capacity serves residential supply lines
  • Rated 300 psi at 150 °F for reliable service

1-inch bronze check valve for plumbing systems

The Milwaukee Valve UP1509 is a 1-inch sweat bronze spring check valve designed for horizontal installation in water lines. It suits residential and light-commercial plumbing where a compact inline valve is needed to prevent backflow.

Sustained flow at rated pressure and temperature

The valve handles up to 31 gpm at a maximum water pressure of 300 psi at 150 degrees F and operates continuously between -20 degrees F and 200 degrees F. Cracking pressure stays within .750 to 1.000 psi so the disc opens reliably under normal system pressure without chatter.

Sweat connections demand clean copper prep

Sweat-by-sweat ends require fluxed, deburred copper pipe and even heat to form leak-free joints; overheating can damage the bronze seat or brass disc. The valve must be mounted horizontally with flow arrow aligned, otherwise the spring-loaded disc may not reseat properly. Not for steam service or vertical runs where gravity affects closure.

How it compares

Measured against everything we stock in Faucet Valves & Replacement Parts, at today’s prices. Recalculated every night.

Price $108.99
Pricier than about 65% of the 1,132 comparable items (median $54.99).

Specifications

Product
Brand nameMILWAUKEE VALVE
Product typeOther

Questions about this item

How much heat can the 1-inch sweat bronze spring check valve handle during continuous operation?

The valve is rated for a maximum temperature of 200 degrees Fahrenheit and a minimum of -20 degrees Fahrenheit, suitable for hot water systems up to that limit.

What piping and orientation are required to install this 1-inch sweat check valve?

It uses sweat-to-sweat connections for 1-inch copper tubing and must be mounted horizontally to function correctly.

Will the 0.750 to 1.000 psi cracking pressure work with older low-pressure gravity-fed plumbing?

Yes, the low cracking pressure range of 0.750 to 1.000 psi allows the valve to open easily in older gravity-fed or low-head systems.

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