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Viega

Viega Megapress Stainless 304 Coupling 1" No Stop bath hardware 95320

SKU CH-4A9N-418CK

Stainless-steel 304 press-fit coupling joins two 1 in tubes for non-potable water up to 200 psi and 250 °F

  • Press-fit coupling joins 1 in pipes without welding
  • 304 stainless steel resists corrosion in non-potable water systems
  • FKM O-ring seals up to 200 psi at 250 Degrees F
  • Straight connector design simplifies in-line installations
  • 3 9/32 in overall length fits tight plumbing spaces

Stainless 304 Press-Fit Coupling

The Viega Megapress coupling joins two 1-inch tubes with a press-fit connection on each end. Made from grade 304 stainless steel, it is rated for non-potable water systems up to 200 psi and 250 degrees Fahrenheit. The straight connector measures 3 9/32 inches overall and uses an FKM O-ring for sealing.

Replaces threaded or welded joints

This fitting eliminates the need for pipe threading or welding equipment on 1-inch stainless lines. The jump is worth it when installation speed, flame-free work sites or consistent press-tool repeatability matter more than the cost of the tool itself. It does not suit potable water circuits or applications exceeding the stated pressure and temperature limits.

Press-tool installation only

A compatible press tool and the correct jaw for 1-inch tube are required; hand-tightening or adhesive will not seal the joint. The most common failure is an incomplete press that leaves the O-ring uncompressed, so verify the tool calibration and jaw condition before every connection. No bolt holes or flanges are present to aid alignment.

Highlights

  • Press-fit coupling joins 1 in pipes without welding
  • 304 stainless steel resists corrosion in non-potable water systems
  • FKM O-ring seals up to 200 psi at 250 Degrees F
  • Straight connector design simplifies in-line installations
  • 3 9/32 in overall length fits tight plumbing spaces

Specifications

BrandViega Megapress Stainless 304

Questions about this item

What press-jaw size matches the 1 in tube ends on this 304 stainless coupling?

Use a 1 in press jaw rated for Megapress stainless fittings; the coupling has 1 in press-fit connections on both sides and an overall length of 3 9/32 in.

Which step do installers most often miss when pressing this FKM O-ring fitting?

They forget to check the FKM O-ring seating and to mark the 1 in insertion depth before pressing; an incomplete press leaves a leak path at 200 psi.

When should the FKM O-ring on this 304 stainless coupling be inspected or replaced?

Inspect the FKM O-ring at each system service or if the line sees temperatures near 250 °F; replace it at any sign of hardening, cracking or permanent compression set.

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