Oracstar Compression Straight Coupler - 15mm X 0.5In

The Oracstar Compression Straight Coupler is designed for secure plumbing connections. This 15mm x...

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The RangeOracstar Pf15 Compression Straight Coupler - Brass
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OnBuy.comOracstar Pf15 Compression Straight Coupler 5063238624474
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B&Q - Oracstar Pf15 Compression Straight Coupler Br (15mm X 0.5In)
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Product Information

Full details

The Oracstar Compression Straight Coupler is designed for homeowners and professional plumbers who need a reliable, tool-free connection between 15mm copper piping and 1/2-inch threaded plumbing fixtures. Its primary benefit is the ability to create a secure, watertight seal without the need for soldering or specialized welding equipment, making it ideal for tap installations; however, users should be aware that it is not intended for high-pressure industrial systems or gas lines.

All features

Model Part NumberPf15
BrandOracstar

Extended Product Information

FAQs

Can I use this on plastic pipe?

Yes, but you must use a rigid pipe support insert inside the plastic pipe to prevent it from collapsing under compression.

Does this require PTFE tape?

Compression fittings typically seal via the olive. While PTFE tape is not required on the compression side, it is good practice to use it on the 1/2-inch threaded side for a leak-free connection.

Can I reuse the olive?

It is generally recommended to use a new olive if you disconnect the joint, as the original olive will have deformed to the pipe.

What is the maximum pressure rating?

This fitting is designed for standard residential water pressure (PN10/PN16 levels). Consult your local plumbing codes for specific system limits.

Is this lead-free?

The product is made of brass and is suitable for standard domestic water supply systems.

Troubleshooting

Joint is leaking or weeping water

Tighten the nut by an additional quarter turn. If it continues to leak, inspect the pipe for scratches or ensure the olive is seated correctly.

Nut is difficult to tighten

Ensure the pipe is pushed fully into the fitting body and the nut threads are properly aligned. Apply a small amount of plumbers' grease to the threads if necessary.

Pros and Cons

Pros

  • Easy, fast installation process
  • No open flames or hot work required
  • Reliable watertight seal for water systems
  • Durable brass construction

Cons

  • Requires proper wrench technique to avoid over-tightening
  • Not suitable for gas or high-pressure steam applications
  • Olives are often single-use if disconnected

Setup, Compatibility & Care

To install, first slide the compression nut and olive onto the 15mm copper pipe. Insert the pipe into the coupler body until it bottoms out, then slide the nut and olive forward to engage the threads. Use a wrench to tighten until firm. Compatibility is limited to 15mm OD copper, plastic (with appropriate pipe inserts), or stainless steel pipe on one end and 1/2-inch BSP female threads on the other. For care, avoid using abrasive cleaners on the brass finish. Regularly check the fitting after the initial install to ensure no weeping occurs at the connection point.

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