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Viega ProPress XL straight copper coupling, 3 inch press-fit ends, no centre stop, 4 15/16 inch length

Viega

Viega 20748 ProPress XL coupling 3 in x 3 in no stop

SKU CH-BC5E-68R7V

Copper press-fit coupling joins two 3 in tubes without a centre stop, rated to 200 psi

  • ProPress XL press-fit connection eliminates open-flame soldering on 3 in copper tube
  • EPDM O-ring seal rated for 200 psi maximum operating pressure in potable water
  • No centre stop allows continuous straight coupling for flexible pipe alignment
  • Copper construction resists corrosion for long service life in plumbing systems
  • Overall length 4 15/16 in fits standard 3 in copper tube installations

Viega ProPress XL 3-inch Coupling

This copper press-fit coupling joins two 3-inch copper tubes in potable-water systems. The straight design has no centre stop, so the fitting slides fully over both pipe ends for a continuous joint. EPDM O-rings seal each connection without solder or flux. Rated for 200 psi maximum operating pressure.

Press-Fit Installation Limits

The press-fit method requires a compatible press tool and jaws sized for 3-inch copper tube. Joints cannot be disassembled or repositioned once pressed, so pipe alignment must be correct before actuation. The fitting is not threaded or flanged and cannot adapt to other connection types. No centre stop means the installer must measure insertion depth on both sides.

No Centre Stop Constraint

Without an internal stop the coupling slides completely over each tube, demanding accurate measurement of insertion depth on both ends. This design suits repair or retrofit work where a stopped coupling would block full insertion. Installers who prefer a fixed insertion reference should select a stopped version instead.

Highlights

  • ProPress XL press-fit connection eliminates open-flame soldering on 3 in copper tube
  • EPDM O-ring seal rated for 200 psi maximum operating pressure in potable water
  • No centre stop allows continuous straight coupling for flexible pipe alignment
  • Copper construction resists corrosion for long service life in plumbing systems
  • Overall length 4 15/16 in fits standard 3 in copper tube installations

Specifications

BrandViega

Questions about this item

Should I choose the 3-inch no-stop coupling or a version with a center stop?

The 20748 has no center stop, so the straight coupling slides fully over both 3-inch copper tubes; choose a stop version only if you need a built-in insertion limit.

What does the 200 psi rating mean once the fitting is pressed on site?

The joint is rated for 200 psi maximum operating pressure in potable-water systems after a proper press connection is made.

How does the press-fit interface limit what pipe I can use?

Both ends accept 3-inch copper tube size only; the EPDM O-ring seals on copper, so other materials or diameters are not compatible.

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