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Bronze Y-pattern swing check valve, sweat connections, 4.25 in long

Milwaukee Valve

Milwaukee Valve 1509Y 1" Swing Y Check Valve 4.25 in

SKU CH-NH8F-P9VNJ

A 1-inch bronze Y-pattern swing check valve with sweat connections, 0.5 psi cracking pressure, 31 gpm flow and 300 psi water rating

  • Size1"
  • TypeOther
  • Reliable flow control with 31 gpm full-flow capacity
  • Durable bronze body resists corrosion in water and steam systems
  • Operates from -20 °F to 425 °F for wide temperature range
  • Handles 300 psi water pressure at 150 °F and 150 psi steam pressure
  • Low .5 psi cracking pressure opens easily in any orientation

Bronze Y-pattern check valve

The Milwaukee Valve 1509Y is a 1-inch bronze swing check valve with a Y-pattern body and sweat-to-sweat connections. It provides full flow in horizontal or vertical mounting orientations and is rated for water pressures up to 300 psi at 150 degrees Fahrenheit.

Temperature and pressure limits

The valve operates continuously from minus 20 degrees Fahrenheit up to 425 degrees Fahrenheit. Steam service is limited to 150 psi WSP while the cracking pressure is 0.5 psi, allowing the disc to open with minimal upstream pressure.

Flow capacity decides suitability

The published flow coefficient is 31 gpm, which determines whether the valve meets the system demand without excessive pressure drop. Builders requiring a higher flow rate will need a larger valve body.

Highlights

  • Reliable flow control with 31 gpm full-flow capacity
  • Durable bronze body resists corrosion in water and steam systems
  • Operates from -20 °F to 425 °F for wide temperature range
  • Handles 300 psi water pressure at 150 °F and 150 psi steam pressure
  • Low .5 psi cracking pressure opens easily in any orientation

Specifications

BrandMILWAUKEE VALVE
Size1"
TypeOther

Questions about this item

How do I choose between the available versions or capacities of the 1509Y check valve?

The 1509Y is offered in a single 1 inch size with a 4.25 inch overall length, so there are no alternative versions or capacities to select from.

What does the 31 gpm flow rating mean once the valve is installed in a real plumbing system?

The 31 gpm rating indicates the maximum water flow the valve can pass when fully open, so actual flow will depend on your supply pressure and piping layout.

What connection standard does the Sweat x Sweat interface use, and what pressure does it cap in practice?

The Sweat x Sweat ends are soldered to copper tubing and the valve handles up to 300 psi water pressure at 150 degrees F and 150 psi steam pressure.

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