Primaflow Prima Plus Endfeed Slip Coupling - 35mm

PrimaPlus endfeed fittings are premium copper fittings designed for a variety of installations, in...

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The RangePrima Plus Primaplus Endfeed Slip Coupling 15Mm - Mpn 30006202 - Copper Plumbing Fitting - Grey
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OnBuy.comPrima Plus Endfeed Slip Coupling 15Mm 5051258000095
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B&QB&Q - Prima Plus Endfeed Slip Coupling 15mm
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Product Information

Full details

The Primaflow Prima Plus 35mm Endfeed Slip Coupling is designed for professional plumbers and DIY enthusiasts who require a reliable, permanent connection in water and gas piping systems. These high-quality copper fittings offer an exceptional, leak-proof seal when installed correctly via soldering, though they require specific skills in metal joining and pipe preparation to ensure a durable outcome.

All features

Model Part Number1270948
BrandPrima Plus

Extended Product Information

FAQs

Are these fittings suitable for gas lines?

Yes, the Prima Plus range is designed for both water and gas systems, provided the installation complies with local safety regulations.

Can I reuse these after they have been soldered?

No, endfeed fittings create a permanent, bonded connection. They must be cut out if the pipe configuration needs to change.

What is the benefit of the slip design?

The slip design allows the fitting to slide fully over a pipe, making it easier to perform repairs in tight spaces where you cannot easily manipulate the existing pipework.

Do I need to use specific solder?

You should use standard lead-free plumbing solder and compatible flux as recommended for copper water systems.

Is this coupling compatible with 35mm plastic pipe?

No, these copper fittings are designed specifically for copper pipe diameters to ensure a proper fit for capillary soldering.

Troubleshooting

Joint leaks after cooling

The joint may not have been cleaned properly or lacked sufficient heat. Re-clean, re-flux, and re-solder the connection.

Solder does not flow into the joint

Ensure the fitting and pipe are heated evenly. If the surfaces are oxidized, the solder will bead rather than flow; clean thoroughly.

Pros and Cons

Pros

  • High-quality copper construction for longevity
  • WRAS approved for drinking water safety
  • Kite marked for verified British standard compliance
  • Reliable and permanent connection when soldered correctly

Cons

  • Requires professional-grade soldering equipment
  • Permanent installation cannot be easily disassembled
  • Not suitable for users without metalwork or plumbing experience

Setup, Compatibility & Care

To ensure a successful installation, follow these steps:

  1. Preparation: Cut the 35mm pipe square and remove all burrs using a file.
  2. Cleaning: Clean the pipe ends and the inside of the coupling thoroughly until bright to ensure the solder adheres properly.
  3. Fluxing: Apply an appropriate plumbing flux to the pipe end and the fitting interior.
  4. Soldering: Assemble the connection and apply heat until the solder flows. Allow the joint to cool naturally without stress.

Care Instructions: Once installed, check for leaks under system pressure. Because these are copper, avoid contact with aggressive chemicals that may cause corrosion over time. Keep spare fittings in a dry, dust-free environment to prevent oxidation before installation.

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