As one of the UK’s leading manufacturers of HDPE-lined fittings, we specialize in delivering world-class anti-corrosion solutions to the oil & gas, mining, water treatment, and chemical processing markets. We increase steel fittings to become more resistant to chemicals and tougher by applying our HDPE lining technology that can withstand aggressive operating conditions. Through proprietary methods such as high-pressure insertion or heat forming, we provide leak-tight, welded-free joint between the HDPE liner and the steel body. At various diameters and wall thicknesses, our fittings are to international standards and pressure-rated up to 100 bar. Our fittings lined with HDPE are built for long-term performance with lower maintenance, longer service life, and consistent flow in harsh conditions.
HDPE lined fittings are applied when chemical compatibility, corrosion resistance, and long-term durability are essential. Employed widely in water treatment, mining, oil & gas, and chemical processing operations, they offer an internal protection against aggressive corrosive gases, slurries, or fluids. They are the best for exposed applications to abrasives or reactive materials, they prolong the lifespan of metal components while preserving structure, and they are particularly suitable for high-pressure applications, having resistance up to 100 bar, and for where stable flow and low maintenance are essential for processes. Fittings lined with HDPE present a cost-effective solution for aggressive pipeline conditions, providing leak-tight performance and reduced downtime for demanding industrial use.
| O.D | PN 2.5 | PN 4 | PN 6 | PN 8 | PN 10 | PN 12.5 | PN 16 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | |||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) | (15) | ||
| 20 | – | – | – | – | – | – | – | – | 2.3 | 2.8 | 2.7 | 3.2 | 3.4 | 4.0 | ||
| 25 | – | – | – | – | – | – | 2.3 | 2.8 | 2.8 | 3.3 | 3.4 | 4.0 | 4.2 | 4.9 | ||
| 32 | – | – | – | – | 2.3 | 2.7 | 3.0 | 3.5 | 3.6 | 4.2 | 4.4 | 5.0 | 5.4 | 6.2 | ||
| 40 | – | – | 2.0 | 2.4 | 2.8 | 3.3 | 3.7 | 4.3 | 4.5 | 5.1 | 5.5 | 6.2 | 6.7 | 7.6 | ||
| 50 | – | – | 2.4 | 2.9 | 3.5 | 4.1 | 4.6 | 5.3 | 5.6 | 6.4 | 6.8 | 7.7 | 8.4 | 9.5 | ||
| 63 | 2.0 | 2.4 | 3.0 | 3.5 | 4.4 | 5.1 | 5.8 | 6.6 | 7.0 | 7.9 | 8.6 | 9.6 | 10.5 | 11.8 | ||
| 75 | 2.3 | 2.7 | 3.6 | 4.2 | 5.3 | 6.0 | 6.9 | 7.8 | 8.4 | 9.4 | 10.2 | 11.4 | 12.5 | 14.0 | ||
| 90 | 2.8 | 3.2 | 4.3 | 5.0 | 6.3 | 7.2 | 8.2 | 9.3 | 10.0 | 11.2 | 12.2 | 13.6 | 15.0 | 16.7 | ||
| 110 | 3.4 | 3.9 | 5.3 | 6.0 | 7.7 | 8.7 | 10.0 | 11.2 | 12.3 | 13.7 | 14.9 | 16.6 | 18.4 | 20.5 | ||
| 125 | 3.8 | 4.4 | 6.0 | 6.8 | 8.8 | 9.4 | 11.4 | 12.8 | 13.9 | 15.5 | 16.9 | 18.8 | 20.9 | 23.2 | ||
| 140 | 4.3 | 4.9 | 6.7 | 7.6 | 9.8 | 11.0 | 12.8 | 14.3 | 15.6 | 17.4 | 19.0 | 21.1 | 23.4 | 26.0 | ||
| 160 | 4.9 | 5.6 | 7.7 | 8.6 | 11.2 | 12.5 | 14.6 | 16.3 | 17.8 | 19.8 | 21.7 | 24.0 | 26.7 | 29.6 | ||
| 180 | 5.5 | 6.2 | 8.6 | 9.7 | 12.6 | 14.1 | 16.4 | 18.3 | 20.0 | 22.2 | 24.4 | 27.0 | 30.0 | 33.2 | ||
| 200 | 6.1 | 6.9 | 9.6 | 10.7 | 14.0 | 15.6 | 18.2 | 20.3 | 22.3 | 24.7 | 27.1 | 30.0 | 33.4 | 37.0 | ||
| 225 | 6.9 | 7.7 | 10.8 | 12.0 | 15.7 | 17.5 | 20.5 | 22.8 | 25.0 | 27.7 | 30.5 | 33.7 | 37.5 | 41.0 | ||
| 250 | 7.6 | 8.6 | 11.9 | 13.3 | 17.5 | 19.4 | 22.8 | 25.3 | 27.8 | 30.8 | 33.8 | 37.4 | 41.7 | 46.1 | ||
| 280 | 8.5 | 9.6 | 13.4 | 14.9 | 19.6 | 21.7 | 25.5 | 28.3 | 31.2 | 34.5 | 37.9 | 41.9 | 46.7 | 51.6 | ||
| 315 | 9.6 | 10.7 | 15.0 | 16.7 | 22.0 | 24.4 | 28.7 | 31.8 | 35.0 | 38.7 | 42.6 | 47.1 | 52.5 | 58.0 | ||
| 355 | 10.8 | 12.1 | 16.9 | 18.8 | 24.8 | 27.5 | 32.3 | 35.8 | 39.5 | 43.7 | 48.0 | 53.0 | 59.2 | 65.4 | ||
| 400 | 12.2 | 14.2 | 19.1 | 22.1 | 28.0 | 32.3 | 36.4 | 42.1 | 44.5 | 51.4 | 54.1 | 62.4 | – | – | ||
| 450 | 13.7 | 15.9 | 21.5 | 25.0 | 31.4 | 36.3 | 41.0 | 47.4 | 50.0 | 57.7 | – | – | – | – | ||
| 500 | 15.2 | 17.7 | 23.9 | 27.6 | 34.5 | 40.4 | 45.5 | 52.6 | 55.6 | 64.1 | – | – | – | – | ||
| 560 | 17.0 | 19.8 | 26.7 | 30.9 | 39.1 | 45.2 | 51.0 | 58.9 | – | – | – | – | – | – | ||
| 630 | 19.1 | 22.2 | 30.0 | 34.7 | 44.0 | 50.8 | 57.3 | 66.1 | – | – | – | – | – | – | ||
| 710 | 21.6 | 25.0 | 33.9 | 39.1 | 49.6 | 57.2 | – | – | – | – | – | – | – | – | ||
| 800 | 24.3 | 28.1 | 38.1 | 44.1 | 55.9 | 64.4 | – | – | – | – | – | – | – | – | ||
| 900 | 27.3 | 31.6 | 42.9 | 49.9 | – | – | – | – | – | – | – | – | – | – | ||
| 1000 | 30.3 | 35.1 | 47.7 | 55.0 | – | – | – | – | – | – | – | – | – | – | ||
Harry PTFE Lining is a leading supplier of HDPE Lined Fittings in Midland, UK, offering high-quality, corrosion-resistant solutions ideal for chemical, pharmaceutical, and industrial applications.
| O.D | PN 2.5 | PN 4 | PN 6 | PN 8 | PN 10 | PN 12.5 | PN 16 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) | (15) |
| 20 | – | – | – | – | – | – | – | – | – | – | 2.3 | 2.7 | 2.8 | 3.3 |
| 25 | – | – | – | – | – | – | – | – | 2.3 | 2.7 | 2.8 | 3.3 | 3.5 | 4.0 |
| 32 | – | – | – | – | – | – | 2.4 | 2.9 | 3.0 | 3.4 | 3.6 | 4.2 | 4.5 | 5.1 |
| 40 | – | – | – | – | 2.3 | 2.7 | 3.0 | 3.5 | 3.7 | 4.3 | 4.5 | 5.1 | 5.6 | 6.3 |
| 50 | – | – | 2.3 | 2.8 | 2.9 | 3.4 | 3.8 | 4.4 | 4.6 | 5.3 | 5.6 | 6.4 | 6.9 | 7.8 |
| 63 | – | – | 2.5 | 3.0 | 3.6 | 4.2 | 4.7 | 5.4 | 5.8 | 6.6 | 7.0 | 7.9 | 8.7 | 9.8 |
| 75 | – | – | 2.9 | 3.4 | 4.3 | 4.9 | 5.6 | 6.4 | 6.9 | 7.8 | 8.4 | 9.4 | 10.4 | 11.6 |
| 90 | 2.3 | 2.8 | 3.5 | 4.1 | 5.1 | 5.8 | 6.7 | 7.6 | 8.2 | 9.3 | 10.0 | 11.2 | 12.5 | 16.9 |
| 110 | 2.7 | 3.2 | 4.3 | 5.0 | 6.3 | 7.1 | 8.2 | 9.3 | 10.0 | 11.2 | 12.3 | 13.8 | 15.2 | 16.9 |
| 125 | 3.1 | 3.7 | 4.9 | 5.6 | 7.1 | 8.0 | 9.3 | 10.5 | 11.4 | 12.8 | 13.9 | 15.5 | 17.3 | 19.2 |
| 140 | 3.5 | 4.1 | 5.4 | 6.2 | 8.0 | 9.0 | 10.4 | 11.7 | 12.8 | 14.3 | 15.6 | 17.4 | 19.4 | 21.5 |
| 160 | 4.0 | 4.6 | 6.2 | 7.1 | 9.1 | 10.2 | 11.9 | 13.3 | 14.6 | 16.3 | 17.8 | 19.8 | 22.1 | 24.5 |
| 180 | 4.4 | 5.1 | 7.0 | 7.9 | 10.2 | 11.5 | 13.4 | 15.0 | 16.4 | 18.3 | 20.0 | 22.2 | 24.9 | 27.6 |
| 200 | 4.9 | 5.6 | 7.7 | 8.7 | 11.4 | 12.7 | 14.9 | 16.6 | 18.2 | 20.3 | 22.3 | 24.7 | 27.6 | 30.6 |
| 225 | 5.5 | 6.3 | 8.7 | 9.8 | 12.8 | 14.3 | 16.7 | 18.6 | 20.5 | 22.8 | 25.0 | 27.7 | 31.1 | 34.4 |
| 250 | 6.1 | 7.0 | 9.7 | 10.9 | 14.2 | 15.8 | 18.6 | 20.7 | 22.8 | 25.3 | 27.8 | 30.8 | 34.5 | 38.2 |
| 280 | 6.9 | 7.8 | 10.8 | 12.1 | 15.9 | 17.7 | 20.8 | 23.1 | 25.5 | 28.3 | 31.2 | 34.5 | 38.7 | 42.7 |
| 315 | 7.7 | 8.7 | 12.2 | 13.7 | 17.9 | 20.0 | 23.4 | 26.0 | 28.7 | 31.8 | 35.0 | 38.7 | 43.5 | 48.0 |
| 355 | 8.7 | 9.8 | 13.7 | 15.3 | 20.1 | 22.3 | 26.3 | 27.2 | 32.3 | 35.8 | 39.5 | 43.6 | 49.0 | 54.1 |
| 400 | 9.8 | 11.5 | 15.4 | 18.0 | 22.7 | 26.3 | 29.7 | 34.4 | 36.4 | 42.1 | 44.5 | 51.4 | 55.2 | 63.7 |
| 450 | 11.0 | 12.9 | 17.4 | 20.3 | 25.5 | 29.5 | 33.4 | 38.7 | 41.0 | 47.4 | 50.0 | 57.7 | – | – |
| 500 | 12.2 | 14.3 | 19.3 | 22.4 | 28.4 | 32.8 | 37.1 | 42.9 | 45.5 | 52.5 | 55.6 | 64.1 | – | – |
| 560 | 13.7 | 16.0 | 21.6 | 25.1 | 31.7 | 36.7 | 41.5 | 58.0 | 51.0 | 58.8 | – | – | – | – |
| 630 | 15.4 | 18.0 | 24.3 | 28.2 | 35.7 | 41.3 | 46.7 | 54.0 | 57.3 | 66.1 | – | – | – | – |
| 710 | 17.4 | 20.3 | 27.4 | 31.8 | 40.2 | 46.5 | 52.6 | 60.7 | – | – | – | – | – | – |
| 800 | 19.6 | 22.2 | 30.8 | 35.7 | 45.3 | 52.3 | – | – | – | – | – | – | – | – |
| 900 | 22.0 | 25.5 | 34.7 | 40.2 | 51.0 | 58.8 | – | – | – | – | – | – | – | – |
| 1000 | 24.2 | 28.3 | 38.5 | 44.5 | 56.7 | 65.3 | – | – | – | – | – | – | – | – |
Designed to withstand high pressures, ensuring long-term performance in demanding environments
Highly resistant to chemical corrosion, providing longevity in aggressive environments
Compatible with fusion welding, mechanical coupling, and adhesive bonding for seamless integration
Requires minimal upkeep, leading to lower maintenance costs over time
HDPE lined fittings are metal fittings (like elbows, tees, reducers) that have a High-Density Polyethylene (HDPE) inner lining to provide excellent corrosion and abrasion resistance while maintaining structural strength.
HDPE lining offers chemical resistance, low friction, durability, and leak prevention, making the fittings suitable for transporting aggressive or corrosive materials.
They’re commonly used in mining, water treatment, chemical processing, and slurry transport where metal corrosion or material wear is a concern.
The lining is typically compression-molded or extrusion-lined and mechanically locked or thermally bonded to ensure it stays in place during operation.
They are generally suited for moderate pressure and temperatures up to around 60–80°C (140–176°F), depending on the application and lining method.
We are the leading Manufacturer and Supplier of PTFE Lined Pipe, Fittings, Flanges, Spool and Valves in Midland, Uk.
