Prima Classic compression fittings are high-quality trade brass compression fittings suitable for ...Prima Classic compression fittings are high-quality trade brass compression fittings suitable for various installations, including water and gas systems. Manufactured to the EN 1254 standard and fully WRAS approved, these fittings ensure a secure and reliable connection every time. They are certified for use with drinking water, making them a dependable choice for plumbing projects requiring straightforward, everyday performance and clear, consistent installation results.
The Prima Classic 15mm Compression Tank Connector is designed for professional plumbers and DIY enthusiasts needing a reliable, leak-proof junction between a tank and 15mm piping. It excels by providing a robust brass connection that meets stringent EN 1254 standards, ensuring safety and performance in water and gas systems. While it offers exceptional durability, users must ensure the tank wall is sufficiently flat and reinforced to prevent localized stress during the tightening process.
All features
Model Part Number
15mm
Brand
Prima Classic
Extended Product Information
FAQs
Is this connector safe for drinking water?
Yes, it is fully WRAS approved and certified for use with potable water systems.
Can I use this for gas piping?
Yes, the product is suitable for gas systems, provided the installation adheres to local gas safety regulations.
What is the material composition?
It is made from high-quality trade-grade brass.
Does this require soldering?
No, this is a compression fitting and does not require heat or solder.
Can it be used on thin-walled plastic tanks?
While compatible, it is highly recommended to use a backing plate or reinforcement to prevent the tank wall from warping under pressure.
Troubleshooting
Slow drip at the compression joint
Tighten the compression nut by an additional 1/8th turn. If it persists, inspect the olive for uneven deformation.
Leaking behind the tank flange
Ensure the tank wall is flat and the rubber washer is correctly seated and free of debris.
Pros and Cons
Pros
Certified for drinking water use
High-grade, durable brass material
Standardized sizing for easy integration
No heat or soldering required for installation
Suitable for both gas and water systems
Cons
Requires proper tank reinforcement to prevent cracking
Overtightening can deform the olive
Not intended for non-standard pipe diameters
Setup, Compatibility & Care
Preparation: Drill a hole in the tank slightly larger than the connector thread but small enough for the flange to cover.
Installation: Place the washer on the connector body before inserting it through the hole.
Tightening: Screw the backnut onto the connector inside the tank, ensuring the seal is compressed evenly.
Connection: Insert the 15mm pipe into the external side of the fitting, tighten the compression nut by hand, and finish with a spanner.
Maintenance: Periodically check the fitting for signs of corrosion or moisture, especially in hard water areas. Do not use abrasive cleaners on the brass surface.