The 15mm Compression Fittings collection at PlumbHQ brings together every essential mechanical joint you need for plumbing and heating systems using 15mm pipework. If you work in the trade or handle your own installs, you know that 15mm is the backbone for domestic water and central heating pipe runs across the UK. Here, you'll find straight couplings, elbows, Tees, stop ends, olives, tank connectors, and all the right accessories to keep your 15mm compression joints secure and leak-free from start to finish.
15mm Compression Joint Solutions: Everything in One Place
Every fitting in this collection is engineered for use with 15mm copper or plastic pipe (with the right inserts), covering hot and cold water feeds, central heating, and gas pipework as needed. Whether you're extending pipe runs, making repairs, or laying out a new zone, these fittings mean no soldering and no flux – just a mechanical joint you can assemble, demount, and reassemble in minutes.
As standard, each compression fitting includes a compression nut, an olive, and a precision-machined body. Tighten the nut and the olive compresses onto the pipe, locking in a positive seal which stands up to the system pressures expected by any serious plumber or installer. Major types found in the range are:
- Straight Couplings – for direct 15mm to 15mm connections
- 90 Degree Elbows – for smooth right angle changes in pipework
- Tees – for branching a main line or adding spurs off a live system
- Stop Ends – for capping off open pipes safely
- Tank Connectors – for passing pipes through tank walls with a watertight seal
- Olives and Accessories – to keep every joint tight and compliant
All fittings in this line are designed for quick installation – no specialist tools, just cut pipe, insert, and tighten down. That means less downtime and a rapid fix on site, ideal for maintenance, upgrades, or emergency jobs.
Why Choose 15mm Compression Fittings?
This collection is built for the realities of British plumbing – 15mm pipework is everywhere, and the right compression fittings are non-negotiable for a safe, resilient install. Every fitting delivers a robust, flame-free joint you can rely on for potable water, heating, or gas duties. These are not just stopgaps; they’re long-term solutions trusted on site daily by tradespeople, heating engineers, and hands-on DIYers. If you want a secure joint without faff, this is the range you go for.
For system matching and future changes, compression fittings excel. They’re easy to demount and reuse where needed, letting you adapt to upgrades or alterations without breaking your back.
System Compatibility and Related Solutions
Fittings here pair perfectly with standard 15mm copper pipe or UK plastic systems (using the correct inserts). All fittings are compatible with hot or cold water and low-pressure gas, meaning you have a complete solution for domestic and light commercial jobs.
If you need alternatives in chrome, see the Chrome Compression Fittings range. For branching work and system design, check our Compression Tee Fittings, or cover directional changes with Compression Elbow Fittings. For solid, matching olives, see Compression Olives, and for straight runs or step-downs in size, reference Compression Coupling Fittings.
Quality, Material, and Trade Assurance
This collection is sourced from Flowflex, a longstanding name in UK plumbing and heating supply. Each 15mm compression fitting is manufactured from reliable brass – the standard for strength, corrosion resistance, and system longevity. You’ll also spot brass and chrome finishes to match exposed or hidden pipework according to the job.
All fittings are WRAS approved, certifying them for potable water and underlining their fitness for live water systems. Standards compliance comes as standard, with every fitting manufactured in line with BS EN 1254-2 for fittings and BS EN 1057 for compatible copper pipework. Pressure rated to PN16 (16 Bar) and suitable for use up to 110°C, these fittings withstand the full range of demands faced in real-world plumbing and heating systems.
Batch Sizes and Buying Options
15mm compression fittings are offered in a mix of singles and multi-packs – from 10s up to bulk 100s, giving you the flexibility to buy for one job or stock up for ongoing runs.
PlumbHQ Commitment: Trade-Focused Supply, Reliable Every Time
At PlumbHQ, we concentrate on straight, accurate product information, regulatory compliance, and rapid, reliable service. Our listings make it clear what’s in each pack and what it fits, so there’s no second guessing in the van or on the site. Our team knows the industry and the pressures on the job, backing you up with support tailored for the trade.
With fast and convenient delivery, you get what you need, when you need it. Our stock covers every joint, bend, stop, and accessory for 15mm plumbing – clearly laid out and ready for work.
Browse the full range of 15mm compression fittings now to lock in quality joints across your next install or repair. Get the clarity, strength, and compliance that the job demands, every time you choose PlumbHQ.
