John Guest Mdpe Compression Female Threaded Elbow - 20mm X 1/2"

Combine a 90 degree directional change with a 1/2 inch female threaded outlet using this versatile...

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B&QB&Q - Mdpe Compression Female Threaded Elbow20mm X 1/2"
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DebenhamsJohn Guest Unisex Blue Mdpe Compression Female Threaded Elbow - 25Mm X 3/4" In
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AmazonJohn Guest Women's Blue Mdpe Compression Threaded Elbow 20Mm X 1/2" Bsp Pipe Fitting, Wras Approved
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Product Information

Full details

This John Guest fitting is for plumbers and DIYers working with 20mm MDPE pipes who need to create a 90-degree directional change with a 1/2 inch female threaded connection. Its key benefit is providing a secure and reliable compression seal for leak-free installations. A minor caveat is that it is designed specifically for MDPE pipe and requires appropriate pipe preparation.

All features

Model Part Number5036124201981
BrandJohn Guest

Extended Product Information

FAQs

What type of pipe is this fitting for?

This fitting is specifically designed for 20mm MDPE (Medium Density Polyethylene) pipe.

What is the thread size on the female outlet?

The female threaded outlet is a 1/2 inch BSP (British Standard Pipe) thread.

Do I need any special tools for installation?

No, the compression fitting part is designed for hand-tightening, followed by a slight turn with a wrench. No solvent or glue is required.

Can I use this fitting with PEX or copper pipe?

No, this fitting is exclusively for 20mm MDPE pipe. Using it with other pipe types will result in a faulty and unsafe connection.

How many fittings are included in a pack?

This product is supplied in a pack of 25 fittings.

Is PTFE tape necessary on the threaded connection?

While the compression fitting does not require tape, it is often recommended to use PTFE tape or a thread sealant on the male threads of the component connecting to the 1/2" female outlet for a secure, leak-free seal.

Troubleshooting

Fitting not sealing properly / slight leak

Ensure the 20mm MDPE pipe is fully inserted into the fitting and that the pipe end is cut square and clean. Re-tighten the compression nut slightly. Check for any damage to the pipe or the fitting's internal O-ring.

Difficulty inserting pipe

Confirm you are using the correct 20mm MDPE pipe. Ensure the pipe end is free of burrs or deformation. A small amount of silicone lubricant can aid insertion, but avoid oils or greases that could degrade the seal.

Threaded connection leaks

Ensure the male threaded component is compatible with 1/2" BSP. Apply PTFE tape or thread sealant to the male threads before connection. Check for cross-threading or damage to the threads on either component.

Pros and Cons

Pros

  • Provides a reliable, leak-free seal on MDPE pipes.
  • Enables precise 90-degree pipe direction changes.
  • Simple, tool-free installation for quick assembly.
  • Durable construction for long-term use.
  • Bulk pack offers cost-effectiveness for larger jobs.

Cons

  • Only compatible with 20mm MDPE pipe.
  • Requires precise pipe insertion for optimal sealing.
  • Female thread may require a sealant or PTFE tape for certain connections.

Setup, Compatibility & Care

Setup:

  1. Ensure the 20mm MDPE pipe is cut square and clean. Remove any burrs from the pipe end.
  2. Push the 20mm MDPE pipe firmly into the compression end of the fitting until it is fully seated.
  3. Tighten the compression nut by hand, then use a wrench to secure it further. Overtightening is not recommended.
  4. For the 1/2 inch female threaded outlet, ensure the male threaded component is clean. Apply PTFE tape or a suitable thread sealant if required by the mating part or for added security.
  5. Connect the male threaded component and tighten securely.

Compatibility:

  • Designed exclusively for use with 20mm MDPE (Medium Density Polyethylene) pipe.
  • The female thread is 1/2 inch BSP (British Standard Pipe) thread.

Care:

  • These fittings require minimal maintenance. Periodically check connections for any signs of leakage, especially after initial installation or significant temperature/pressure fluctuations.
  • Clean the exterior of the fitting with a damp cloth if necessary. Avoid harsh solvents or abrasive cleaners that could damage the material.

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