Primaflow Draw Off Cock - 15mm - Silver

The Primaflow 15mm Draw Off Cock is a heavy-duty solution designed for draining residues from radi...

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Product Information

Full details

The Primaflow 15mm Draw Off Cock is an essential tool for professional plumbers and DIY homeowners who need a reliable way to drain residues from radiators during routine cleaning or component replacement. This heavy-duty, chrome-plated component facilitates efficient water flow for system maintenance, ensuring your heating system remains in peak condition; however, users should note that proper plumbing knowledge is required for installation to ensure a watertight seal.

All features

ColourSilver
Model Part Number10050414.1
BrandLP Supplies

Extended Product Information

FAQs

Is this draw off cock suitable for use with plastic piping?

Yes, provided you use the appropriate 15mm pipe inserts and compression fittings compatible with your specific plastic pipe brand.

What is the primary function of a draw off cock?

It serves as a drain point to remove water from a specific radiator or low point in a heating circuit during maintenance.

Does it come with a cap?

Standard models usually feature an integrated valve; check your specific packaging for any included blanking caps.

Can this be installed horizontally?

Yes, it can be installed in horizontal or vertical positions depending on your pipework configuration.

What tools are needed for installation?

You will typically need two adjustable spanners or a set of pipe wrenches to tighten the compression nut onto the pipe.

Troubleshooting

Valve leaking from the spindle area

Gently tighten the packing nut located behind the valve handle using an adjustable spanner.

Water flow is very slow

Ensure that a radiator bleed valve is opened slightly to allow air to enter the system and displace the water.

Drip from the outlet nozzle

The internal rubber washer may have worn out; replace the washer or ensure the valve is fully closed.

Pros and Cons

Pros

  • Durable chrome-plated finish resists corrosion
  • Meets BS2879-2 standards for peace of mind
  • Simple, effective design for easy operation
  • Compatible with standard 15mm plumbing sizes

Cons

  • Requires professional-grade sealant for installation
  • Not suitable for use on high-pressure steam systems
  • Basic tool required for operation

Setup, Compatibility & Care

Installation requires turning off the heating system and isolating the radiator section to prevent water leakage. Use a suitable PTFE tape or jointing compound on the threads to ensure a permanent, drip-free seal during installation. For care, keep the valve clear of debris and occasionally operate the valve to ensure it does not seize up over time. If you notice any weeping, simply tighten the packing nut behind the operating handle slightly until the leak stops.

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