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Straight copper adapter with sweat and threaded ends

Mueller Industries, Inc.

Mueller Industries, Inc. STREAMLINE W 01446 3/4" NOM FTG x 3/4" MNPT Copper Adapter

SKU CH-JE8M-3MHYF

Straight copper sweat adapter joins 3/4 in. tube to 3/4 in. male pipe thread, rated to 582 psi at 100 °F and 250 °F maximum temperature

  • Rated for 582 psi at 100 °F for reliable potable-water service
  • Withstands temperatures up to 250 °F in hot-water systems
  • Wrot copper construction resists corrosion for long service life
  • Straight adapter connects 3/4 in FTG sweat to 3/4 in MNPT threads
  • No center stop allows full pipe insertion for flexible installation

What this copper adapter does

The STREAMLINE W 01446 connects a 3/4 inch nominal sweat fitting to a 3/4 inch male NPT thread. It is made from wrot copper for potable water applications and has a straight adapter shape without a centre stop.

Build quality and daily use

Wrot copper construction handles a maximum operating pressure of 582 psi at 100 degrees F and a maximum operating temperature of 250 degrees F. The sweat end accepts 3/4 inch copper tube with a 7/8 inch outer diameter, while the threaded end matches 3/4 inch pipe with a 3/4 inch outer diameter.

Check before ordering

Verify that your system uses a 3/4 inch nominal sweat connection on one side and a 3/4 inch male NPT thread on the other. Confirm the pressure and temperature limits suit the installation. This fitting has no centre stop, so plan the joint depth accordingly.

Highlights

  • Rated for 582 psi at 100 °F for reliable potable-water service
  • Withstands temperatures up to 250 °F in hot-water systems
  • Wrot copper construction resists corrosion for long service life
  • Straight adapter connects 3/4 in FTG sweat to 3/4 in MNPT threads
  • No center stop allows full pipe insertion for flexible installation

Specifications

BrandMUELLER INDUSTRIES

Questions about this item

What pressure does the 582 psi rating at 100 °F cap in practice?

The adapter is rated for 582 psi at 100 °F, which is the maximum operating pressure for potable water systems at that temperature.

What pipe and tube sizes must match for this straight adapter to fit?

Side A requires a 3/4 in copper tube size with a 7/8 in outer diameter; Side B requires a 3/4 in pipe size with a 3/4 in outer diameter.

How is this sweat adapter installed, and what step is often missed?

Clean both copper surfaces, apply flux, slide the adapter onto the tube, then sweat solder the joint; the missing step is forgetting to flux the fitting socket before heating.

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