Structure Fittings
Structure Fittings
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Full technical data and dimensions
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Structure Double Bend
LSDBN series, 25 to 50 NB
Cast iron fitting taking two members off a vertical at a corner — a bend with a second socket, for framing in two planes at once.
| Product type | Structure double bend |
|---|---|
| Material | Cast iron |
| Suits tube size | 25 to 50 NB |
| Fixing | Grub screws — slidable to any position on the tube |
| Finish | For use with “B” class galvanised structure tube |
| Catalogue reference | LSDBN series |
Product overview
What it does, and where it fits.
The double bend takes two members off a vertical tube at a corner, rather than one. It is what turns a flat frame into a three-dimensional structure: at the corner post of a rectangular structure, two horizontal members leave in two different planes, and the double bend carries both.
Cast iron and slidable, fixed with grub screws at the required position, in common with the rest of the fitting range.
Dimensions match the single bend size for size — 50/55 mm at 25 NB through 85/95 mm at 50 NB.
Features
Built into every unit.
- Takes two members off a vertical at a corner
- Frames in two planes from one fitting
- Cast iron, fixed with grub screws
- 25 to 50 NB in four catalogue references
Benefits
Why it earns its place in the line.
- Slidable on the tube and locked with grub screws — position is set on site, not in the shop
- Provides flexibility for future modifications without any hammering or welding
- Cast iron construction, matched to the galvanised tube sizes in the range
- A structure can be extended, raised or re-spanned by moving fittings rather than rebuilding
Applications & industries
Where it is specified.
Typical applications
- Building a rectangular tubular structure to carry a glass plant
- Supporting glass columns, pipelines and vessels in compression
- Framing heating mantles, baths and vessel holders
- Modifying an existing structure as the process layout changes
Industries served
- Chemical processing
- Pharmaceutical
- Fine chemicals & dyes
- Distillation & solvent recovery
- Water & effluent treatment
- Agrochemicals
- Research & pilot plant
Technical data
Specification for Structure Double Bend.
Figures below are for this product only — every item in the range carries its own dimension table.
| Product type | Structure double bend |
|---|---|
| Material | Cast iron |
| Suits tube size | 25 to 50 NB |
| Fixing | Grub screws — slidable to any position on the tube |
| Finish | For use with “B” class galvanised structure tube |
| Catalogue reference | LSDBN series |
| Cat. Ref. | NB | H | H1 |
|---|---|---|---|
| LSDBN 25 | 25 | 50 | 55 |
| LSDBN 30 | 30 | 65 | 70 |
| LSDBN 40 | 40 | 70 | 80 |
| LSDBN 50 | 50 | 85 | 95 |
All dimensions in mm, transcribed exactly from the catalogue page.
FAQ
Questions we are asked about this item.
At a corner post where members leave in two planes. One double bend does the work of two bends clamped at the same height, and keeps both members on the same centre.
Enquiry
Tell us your line size — we'll confirm the spec.
Send the bore, the media, the temperature and pressure, and the flange standard you work to. Drawings and custom sizes welcome.
Not sure which spec fits your process?
Send your requirement — media, temperature, pressure, dimensions — and we'll recommend the right product or fabricate it.
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