The Prima Plus compression fitting is a premium brass component manufactured in Britain to the hig...The Prima Plus compression fitting is a premium brass component manufactured in Britain to the highest standards. Designed for use in a variety of water and gas installations, these fittings ensure a secure and reliable connection. Each piece is fully WRAS approved for drinking water applications and manufactured in accordance with EN 1254 standards. Additionally, the product carries the Kitemark BS standard, distinguishing it for its quality and durability in professional plumbing systems.
The Prima Plus 35mm compression fitting is designed for professional plumbers and serious DIYers who require a high-quality, durable connection for water and gas piping systems. Manufactured in Britain from premium brass, this fitting offers exceptional reliability and compliance with rigorous industry standards. While these fittings are ideal for long-term secure installations, users should note that they require precise pipe preparation to ensure a leak-free seal compared to simpler push-fit alternatives.
All features
Model Part Number
1328364
Brand
Prima Plus
Extended Product Information
FAQs
Are these fittings suitable for gas installations?
Yes, these Prima Plus fittings are suitable for use in both water and gas pipeline installations.
Can I use these on plastic pipe?
You can, but you must ensure you use a suitable pipe liner (insert) inside the plastic pipe to prevent it from collapsing under the compression of the olive.
What is the primary benefit of the Kitemark certification?
The Kitemark is a symbol of quality that indicates the product has been independently tested to meet high safety and performance standards.
Do I need any specialized sealant for these fittings?
Generally, compression fittings seal through mechanical force. Sealant is typically not required, though some installers use a light smear of jointing compound on the olive threads for added confidence.
Are these fittings reusable?
While the body can often be reused, it is highly recommended to use a new olive every time you disconnect and reconnect a joint to ensure a proper seal.
Troubleshooting
Joint is weeping or leaking
Ensure the pipe was fully inserted. If it still leaks, tighten the nut by another quarter turn. If the leak persists, disassemble and inspect the olive for damage; replace the olive if necessary.
Nut will not tighten
Check for cross-threading. Ensure the threads are clean and free of debris. If the thread is damaged, the fitting must be replaced.
Pros and Cons
Pros
Certified WRAS approval for drinking water safety
High-durability brass construction
Meets strict EN 1254 and Kitemark BS standards
Reliable for both water and gas installations
Manufactured to high British engineering standards
Cons
Requires proper pipe cutting and deburring
More installation time than push-fit connectors
Requires two wrenches for tightening
Not suitable for use with certain thin-walled plastic piping without liners
Setup, Compatibility & Care
Preparation: Ensure the 35mm pipe end is cut square and is free from burrs or sharp edges that could damage the internal compression olive.
Cleaning: Wipe the pipe end clean of any debris or oxidation to ensure a smooth surface for the olive to bite into.
Insertion: Slide the nut and the olive onto the pipe, then insert the pipe fully into the body of the fitting.
Tightening: Hand-tighten the nut first, then use two appropriately sized wrenches—one to hold the body of the fitting steady and one to turn the nut.
Torque: Tighten the nut by approximately one full turn past hand-tight, depending on the specific pipe hardness. Do not overtighten, as this can distort the olive and cause leaks.
Care: Periodically inspect the joint for signs of dampness or corrosion if installed in high-humidity areas.