Primaflow Brass Flare Union - 10mm - 910388
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Product Information
Full details
The Primaflow 10mm brass flare union is designed for professional plumbers and HVAC technicians working with oil lines and LPG systems that require a Type B manipulative joint. This fitting provides a robust, metal-to-metal seal by utilizing a flare connection, which is safer and more reliable for fuel-based applications than standard compression fittings. It is important to note that this component is not a push-fit or standard compression fitting and requires the use of a specialized flaring tool to prepare the pipework before installation.
All features
| Model Part Number | 910388 |
|---|---|
| Brand | Primaflow |
Extended Product Information
FAQs
Can I use this for water supply lines?
While it can be used for water, it is specifically designed for oil and LPG systems where a Type B manipulative joint is required.
Do I need an olive for this fitting?
No, this is a flare fitting. The seal is created by the flared pipe end against the cone of the fitting, removing the need for an olive.
What tools are required to install this?
You will need a copper pipe cutter, a flaring tool suitable for 10mm tubing, and appropriate sized spanners.
Can this be used on stainless steel pipe?
This fitting is intended for copper pipe. Stainless steel requires different flaring techniques and compatible high-pressure fittings.
Is this a Type B fitting?
Yes, this flare union is designed to be a Type B manipulative joint suitable for fuel applications.
Troubleshooting
Joint is leaking after tightening
The flare on the copper pipe may be uneven or have hairline cracks. Cut the pipe, re-flare carefully, and inspect the cone surface for debris.
Nut will not thread onto the fitting body
Check for cross-threading or metal shavings in the threads. Ensure the pipe is properly aligned with the cone before tightening.
Pros and Cons
Pros
- Ideal for critical fuel lines where safety is paramount
- Provides a secure, permanent metal-to-metal connection
- Eliminates the risk of olive deformation or failure
- Highly durable brass construction
Cons
- Requires a separate flaring tool for installation
- Pipe end must be manipulated; cannot be used with standard compression pipe cuts
- Less forgiving than standard compression fittings if the flare is incorrectly formed
Setup, Compatibility & Care
To install this fitting, follow these steps:
- Cut your 10mm copper pipe squarely and remove any burrs.
- Slide the union nut onto the pipe before creating the flare.
- Use a high-quality flaring tool to form the end of the copper pipe into a cone shape.
- Check that the flare is uniform and free of cracks or surface imperfections.
- Align the flared pipe end with the union body and hand-tighten the nut.
- Use a wrench to finalize the tightening, ensuring the metal-to-metal contact is secured without over-stressing the threads.
Compatibility: Designed for use with copper tubing suitable for flaring. Not compatible with PEX or plastic piping systems.