The colours
| Medium | Colour |
|---|---|
| Water | Green |
| Steam | Grey |
| Gas | Yellow |
| Air | Blue |
| Flammable liquids | Brown |
| Acids | Violet under NEN 3050; orange under ISO 20560 |
| Bases | Violet |
| Fire extinguishing agents | Red |
| Other liquids | Black |
Acids: violet or orange?
This is where the standards differ. NEN 3050 makes acids violet, like bases. The international standard ISO 20560 makes acids orange, with black text (RAL 2008). With us you choose: NEN 3050 (violet) or ISO 20560 (orange). State the standard in your request; without a preference we supply orange to ISO 20560.
Where do you apply pipe markers?
Apply a marker at least at valves and branches, on both sides of a wall or floor penetration, and at regular intervals on long straight runs. Apply it so that it can be read from the normal walking direction. Use an arrow to show which way the medium flows.
Our pipe markers
- Size 215 × 26 mm.
- Text in Dutch, English, German and French.
- Printed on high-tack vinyl. According to the datasheet suitable for use from -40 to +80 °C.
- Is your medium not listed? We make the marker with your own text, up to 30 characters, from 10 pieces per text.
Frequently asked questions
What colour is a water pipe under NEN 3050?
Green.
What colour are acids?
Violet under NEN 3050, orange under ISO 20560. With us you choose; without a preference we supply orange to ISO 20560.
Can I get a marker with my own text?
Yes, up to 30 characters, from 10 pieces per text.
Questions about this text? Email info@kuyper-graveertechniek.com or call 010 216 2344.
