PE100 30 Degree Seamless Bend SDR 11 — Small-Angle Sweep for Pipeline Alignment & Crossing Transitions
The PE100 30° seamless bend (SDR 11) is a small-angle mandrel-bent fitting for the fine-tuning turns that make up most of a long pipeline route. Dual-rated Water PN16 (1.6 MPa) and Gas 10 Bar, it is manufactured from solid PE100 pipe heat-bent over a mandrel — continuous wall, no mould parting line, no weld seam, smooth bore.
On highway and railway crossings, the 30° bend transitions the pipe smoothly between the buried run and the crossing casing. Inside industrial plant pipe racks, it offsets the line around equipment, cable trays and structural steel without resorting to two close-coupled 45° elbows. On long-distance gas and water transmission mains, a series of 30° sweeps lets the line follow the survey route with gentle, low-stress curves instead of sharp directional breaks.
Where a 45° or 90° fitting would over-turn the alignment, the 30° bend gives engineers a precise, smooth small-angle turn that butt-fuses like any other PE100 spigot.
Typical Applications
- Highway, road and railway crossing transition angles
- Industrial plant pipeline offsets around equipment and structures
- Long-distance gas and water transmission main gentle sweeps
- Transmission main grade correction and route alignment fine-tuning
- Pump station and water treatment plant header small-angle turns
Key Features & Benefits
- Small 30° angle — precise turn for route alignment, crossing transitions and plant offsets
- Dual-rated SDR 11 — Water PN16 and Gas 10 Bar in one fitting
- Mandrel-bent seamless — continuous wall, no mould seam, smooth bore
- Long sweep radius — standard 3D, up to 10D on request; low head loss on transmission mains
- Fewer welds than two elbows — one continuous bend instead of two close-coupled 45° fittings
- Butt fusion ends — welds directly to SDR 11 PE100 pipe per DVS 2207
- Custom angles available — 11°, 22°, 15°, 25°, 35° etc. to match survey data
Why one 30° bend beats two 45° elbows?
Two close-coupled 45° elbows create a sharp, kinked path with two extra fusion joints and two potential leak paths. A single 30° seamless bend is one continuous piece of pipe — fewer welds, smoother flow, lower stress on long transmission lines, and faster installation on remote crossing sites.
30° Seamless Bend SDR 11 — Size Range & Rating
The 30° seamless bend is available across the full SDR 11 range. d63–315mm is standard stock; d20–50mm and d355–500mm are produced to order. Custom angles and radii are made to drawing.
| Item |
Specification |
| Material |
Virgin PE100 (Borealis / Ineos) |
| Colour |
Black (with optional blue/yellow stripes for water/gas identification) |
| Standard Dimension Ratio |
SDR 11 |
| Water Pressure Rating |
PN16 (1.6 MPa at 20°C) |
| Gas Pressure Rating |
10 Bar |
| Bend Angle |
30° (custom angles on request) |
| Manufacturing Process |
Mandrel heat-bent (no mould) |
| Standard Centreline Radius |
3D (5D / 8D / 10D on request) |
| End Type |
Spigot for butt fusion |
| Size Range |
d20 – d500mm |
| Standard Stock |
d63 – d315mm |
| Z / L Dimensions |
Per ISO 8085-3 practice — CAD / dimension table on request |
| Marking |
PE100 · SDR11 · 30° · PN16/10Bar · Batch · Date |
Note: exact Z and L dimensions depend on the selected centreline radius and angle. Send your survey data or offset drawing for a precise dimension sheet.
Product Standards & Certifications
All spigot fittings are manufactured from certified PE100 virgin material and tested against international piping system standards. Production is backed by ISO 9001 and ISO 29001 quality management systems.
- EN 12201-3 / ISO 4427-3 — PE fittings for water supply (PN16)
- EN 1555-3 / ISO 4437-3 — PE fittings for gas distribution & transmission (10 Bar)
- DVS 2207 / ISO 21307 — Butt fusion jointing procedures for PE pipes and fittings
- ISO 9001 / ISO 29001 — Quality management for pipeline product manufacture
Note: suitable for potable water and gas transmission duty. Material certificates and test reports supplied on request.
Shipping & Delivery Information
Small-angle bends are compact and stack well in containers, making them cost-effective to ship even to remote crossing sites and plant projects.
After-Sales Service & Warranty
We stand behind the quality of our spigot fittings. Our commitment doesn't end at delivery — we provide welding, angle selection and installation technical support for your water, gas or plant pipeline project.
Frequently Asked Questions
Common questions about our 30° SDR 11 small-angle seamless bend
When is a 30 degree seamless bend used instead of a 45 or 90?+
A 30 degree bend is a small-angle fitting used for fine pipeline alignment — highway and railway crossing transitions, plant pipeline offsets to avoid equipment, and gentle sweeps on long-distance gas and water transmission mains where a 45 or 90 would over-turn the route.
What is SDR 11 rated for?+
SDR 11 is dual rated: Water PN16 (1.6 MPa) and Gas 10 Bar. It is the standard wall class for municipal water mains and medium-to-high pressure gas distribution and transmission.
Why mandrel-bent instead of moulded for a small angle?+
For small angles, a mandrel-bent bend gives a continuous wall with no mould parting line and a smooth, long-radius sweep — critical on long-distance transmission where head loss and stress concentrations must stay minimal.
Which sizes are available?+
The 30° seamless bend is available from d20mm to d500mm, with d63-315mm in standard stock and larger sizes produced on request.
Can custom angles be made?+
Yes — beyond the standard 30°, we can produce 11°, 22°, and custom angles (e.g. 15°, 25°, 35°) to match your survey data, with MOQ starting at 10 pieces.
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