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Bronze Y-pattern swing check valve, 3/4 inch sweat connections

Milwaukee Valve

Milwaukee Valve 1509Y 3/4" Bronze Swing Y Check Valve

SKU CH-YWBX-X8H2R

A bronze Y-pattern swing check valve with sweat connections that prevents back-flow in horizontal or vertical runs up to 300 psi at 150 °F

  • Size3/4"
  • TypeOther
  • Bronze body resists corrosion for long service life
  • Y-pattern swing design reduces flow restriction and pressure drop
  • Sweat-to-sweat connections suit standard copper piping installations
  • Operates from -20 °F to 425 °F for wide temperature range
  • Rated 300 psi at 150 °F for reliable high-pressure performance

3/4" Bronze Swing Y Check Valve

The Milwaukee Valve 1509Y is a 3/4 inch bronze swing check valve designed for plumbing systems that require backflow prevention. Its Y-pattern body and sweat-to-sweat connections suit copper piping installations in residential or light commercial settings.

Capacity and headroom: .5 psi cracking pressure

The valve opens at a low .5 psi cracking pressure, allowing flow with minimal head loss. It handles up to 300 psi at 150 degrees F and operates between -20 and 425 degrees F, covering typical hot and cold water lines.

Replaces worn swing checks in copper systems

This valve serves as a direct replacement for failed bronze swing checks on 3/4 inch sweat fittings. The upgrade is worthwhile when an existing valve leaks, chatters or restricts flow, and the piping layout matches the Y-pattern orientation.

Highlights

  • Bronze body resists corrosion for long service life
  • Y-pattern swing design reduces flow restriction and pressure drop
  • Sweat-to-sweat connections suit standard copper piping installations
  • Operates from -20 °F to 425 °F for wide temperature range
  • Rated 300 psi at 150 °F for reliable high-pressure performance

Specifications

BrandMILWAUKEE VALVE
Size3/4"
TypeOther

Questions about this item

Will the 3/4" sweat ends mate with my existing copper pipe without adapters?

Yes, the valve uses sweat-by-sweat connections sized for 3/4" copper tubing, so it solders directly to pipe of the same nominal diameter.

How can I verify the swing disc is sealing properly once installed?

Pressurise the line up to 300 psi at 150 °F; the 0.5 psi cracking pressure means the disc opens with minimal flow and should close silently when flow stops.

Does the package include solder, flux or pipe hangers?

The box contains only the bronze Y-pattern check valve itself; solder, flux and any mounting hardware must be purchased separately.

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