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John Guest Speedfit Brass Coupler - 28mm X 1" Male BSPT

John Guest Speedfit Brass Coupler - 28mm X 1" Male BSPT

A durable brass adaptor for connecting Metric to FBSP type fittings. JG Speedfit brass male couple...

Best current price£34.56from eBay

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eBayJohn Guest Speedfit Brass Coupler 28mm x 1"" Male BSPT - MW012808N
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DebenhamsJohn Guest Unisex Gold Brass Coupler 28Mm X 1" Male Bspt Mw012808n In
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OnBuy.comJohn Guest Speedfit Brass Coupler 28Mm X 1" Male Bspt Mw012808n 665628018730
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B&QB&Q - John Guest Speedfit Brass Coupler 28mm X 1" Male Bspt Mw012808N
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£37.78
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Product Information

Full details

This John Guest Speedfit Brass Coupler is designed for plumbing professionals and DIY enthusiasts needing to connect metric pipework to FBSP fittings. Its key benefit is a quick, secure, flame-free connection, significantly reducing installation time compared to traditional methods. A minor consideration is the requirement for specific inserts when used with certain plastic pipes.

All features

Model Part NumberMW012808N
BrandJohn Guest

Extended Product Information

FAQs

What is the primary advantage of this brass coupler?

The primary advantage is its instant push-fit connection system combined with a durable brass construction, allowing for quick, flame-free, and reliable plumbing installations.

Do I need any special tools to install this coupler?

For the push-fit connection, no special tools are required beyond ensuring the pipe is cut cleanly. For the threaded connection, PTFE tape is recommended, and a wrench may be needed to tighten it.

Can I use this with any type of plastic pipe?

It is compatible with John Guest Speedfit PEX and polybutylene plastic pipe, but requires the use of specific John Guest Speedfit pipe inserts for a secure connection.

Is this coupler suitable for central heating systems?

Yes, it is designed for use in both hot and cold water supply and central heating systems.

What does 'BSPT' mean in the product name?

BSPT stands for British Standard Pipe Taper thread. This indicates the type of male thread on the fitting, designed to seal when tightened into a compatible female tapered thread.

How do I ensure a leak-free connection?

For the push-fit side, ensure the pipe is pushed fully into the fitting. For the threaded side, use PTFE tape on the threads before screwing into the mating fitting.

Troubleshooting

Coupler leaks after installation

Ensure the pipe is fully inserted into the push-fit connection. Check that the pipe end is clean, round, and free from damage. If the leak is from the threaded connection, ensure PTFE tape was used and the fitting is adequately tightened.

Pipe won't push into the fitting

Verify that you are using the correct size pipe and that it is not deformed. Ensure the pipe end is cut square and free from burrs. Check that the correct size pipe insert is used for plastic pipe.

Pipe is difficult to remove

Ensure you are pushing the collet firmly towards the body of the fitting while pulling the pipe. Check that the pipe has not been significantly deformed or damaged during insertion.

Pros and Cons

Pros

  • Significantly faster installation than traditional methods.
  • Safe to use with no risk of fire from hot works.
  • Durable brass construction for long-term reliability.
  • Reduces the need for specialized tools or consumables like flux or glue.
  • Suitable for a wide range of plumbing applications.

Cons

  • Requires specific inserts for use with PEX and polybutylene plastic pipe.
  • Male thread may not be suitable for all connection types.
  • Requires precise pipe insertion for a secure seal.

Setup, Compatibility & Care

Setup:

  1. Ensure the pipe end (copper, PEX, or polybutylene) is clean, dry, and free from burrs or scratches.
  2. If using PEX or polybutylene pipe, insert the appropriate John Guest Speedfit pipe insert into the pipe end.
  3. Push the pipe firmly into the coupler's push-fit end until it is fully inserted and the connection is secure.
  4. For the male BSPT thread, apply PTFE tape (thread seal tape) to the threads for a more robust seal, then screw into the corresponding female BSPT fitting.

Compatibility:

  • Compatible with standard copper pipe.
  • Compatible with John Guest Speedfit PEX and polybutylene plastic pipe, *provided* the correct Speedfit pipe inserts are used.
  • Compatible with male 1" BSPT threaded fittings.
  • Suitable for hot and cold water systems and central heating systems.

Care:

  • The brass coupler requires minimal maintenance. Ensure connections are periodically checked for tightness, especially in systems subject to vibration.
  • Avoid using abrasive cleaners. If external cleaning is necessary, use a damp cloth.

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