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Copper ProPress extended coupling, straight, no centre stop, 1 inch press-fit both ends

Viega

Viega 79015 ProPress Extended Coupling No Stop 1" x 1

SKU CH-6ZPT-CXMQ1 MPN 79015

Copper ProPress extended coupling without a centre stop joins two 1 in tubes and is rated to 200 psi

  • Product typeDrain Components
  • Press-fit copper ends install fast without flame
  • Extended straight body spans gaps in tight runs
  • No centre stop lets you slide the coupling into position
  • EPDM O-ring seals potable water up to 200 psi
  • Copper construction resists corrosion for long service life

ProPress Extended Coupling No Stop 1

The Viega 79015 is a straight extended coupling designed for potable water systems using 1 inch copper tube size on both ends. It suits professional plumbers and facility maintenance teams who need a press-fit joint without a center stop. The copper body and EPDM O-ring provide a permanent, leak-free connection for commercial and residential installations. No soldering, threading or open flame is required during assembly.

Thermals Noise and Power Draw

This fitting contains no moving parts, electronics or power supply, so it generates no heat, emits no noise and draws no electrical power in normal use. The copper construction simply conducts the temperature of the water passing through it. System pressure and flow rate determine hydraulic performance, not the coupling itself.

Sustained Load Behaviour

Under continuous operating pressure up to 200 psi the copper body and EPDM seal maintain joint integrity without creep or stress relaxation. The absence of a center stop allows full pipe insertion depth on either side, which helps distribute mechanical loads evenly during pressure cycling. Long-term reliability depends on correct press tool calibration and compatible tubing preparation.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $30.99
Typical for this category: the median of 4,240 items is $31.99.

Specifications

Product
Brand nameViega
Model name79015
Product typeDrain Components

Questions about this item

How do I install the Viega 79015 ProPress extended coupling on 1-inch copper tubing, and what step is often missed?

Cut the tube square, deburr inside and out, mark the full insertion depth, then press with a calibrated ProPress tool; the step often missed is verifying the depth mark remains visible after pressing.

What maintenance or replacement will the EPDM O-ring need later?

The EPDM O-ring is designed for the fitting's service life; inspect it only if a joint shows leakage, and replace the entire coupling if the seal deteriorates.

At what pressure limit does the coupling reach its maximum rating under sustained use?

The maximum operating pressure is 200 psi; sustained operation at or above this limit is the first constraint encountered.

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