They are equipped with 2 hexagon socket set screws for N2,5 allen key.
Allows the replacement of the classic union fitting too large for perfect discretion.
Entirely handmade in our workshop.
Appearance of steel tubes
- Standard: Smooth, with a certain sheen as with unfinished steel. Depending on manufacture, the color can vary from light gray to black gray.
- Shot-blasted:Uniform colour that is close to umber grey "RAL7022" with slight shading and texture that blends perfectly with the colour of the plumbing fittings cast iron and shot blasted steel.
As they are raw steel there is a thin film of oil to protect them from corrosion.
This oil film can be removed with our metal cleaner or with any other degreaser (e.g. brake cleaner).
Then you can protect it with a aerosol varnish of a aerosol paint or with linseed oil baked into a very thin layer.
Feel free to read our FAQ.
The black steel nipple pipes are welded medium iso S195T steel pipes according to DIN 10255 with a BSP tapered gas thread according to DIN EN 10226 at both ends.
Size matching
- 3/8″ → 12/17 → Diameter 17.2mm → Thickness 2.3mm
- 1/2″ → 15/21 → Diameter 21.3mm → Thickness 2.6mm
- 3/4″ → 20/27 → Diameter 26.9mm → Thickness 2.6mm
- 1″ → 26/34 → Diameter 33.7mm → Thickness 3.2mm
- 1 1/4″ → 33/42 → Diameter 42.4mm → Thickness 3.2mm
For more details you can read our FAQs
- Choice and dimensions of black and galvanised steel pipes for decorative plumbing fittings
- How do I mount it?
- Which look should I choose for my "standard" black or "umber grey shot blasted" steel tubes?
- Do I have to treat my tubes or can I leave them as they are?
- How to apply a finish?
Thread type:
The thread type is BSP (British Standard Pipe) Whitworth.
The female thread type on the classic threaded fittings is BSPT (tapered), on the deco threaded fittings is BSPP (straight) and the male thread is BSPT tapered DIN EN 10226 formerly ISO 7-1.
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