Pipe Markers — Toxic & Corrosive Fluids (Black on Orange) | ASME A13.1 | Pack of 10 | Free Design
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Black on Orange pipe markers for toxic & corrosive fluids, colour-coded to ASME A13.1 so maintenance crews, contractors and emergency responders can identify pipe contents and flow direction at a glance. Acids, caustics, refrigerant ammonia, and any fluid that is corrosive or toxic on contact or release.
Stock legends
Ammonia, Chlorine, Sulphuric Acid, Hydrochloric Acid, Nitric Acid, Caustic, Sodium Hydroxide, Acid Waste, Carbon Monoxide, Hydrogen Sulphide. Need a different legend in this colour class? Choose Other legend and add the wording in the order notes — we send a proof before printing.
Built for the plant floor
- Full-colour print on industrial-grade adhesive vinyl with a protective overlaminate — resists oil, chemicals, abrasion, UV and graffiti
- Indoor and outdoor rated; aggressive permanent adhesive for clean, dry pipe and insulation jacketing
- Detachable flow-direction arrows included with every marker
- Sold in packs of 10 markers, one legend per pack
- Made to order in Brantford, Ontario — free design, proof sent for approval before production
Sizes — per ASME A13.1
Marker length and letter height scale with pipe outside diameter (including insulation), as recommended by ASME A13.1.
| Size | Pipe outside diameter | Marker length | Letter height | Pack of 10 |
|---|---|---|---|---|
| A | 3/4" to 1-1/4" pipe | 8" | 1/2" | $35.00 |
| B | 1-1/2" to 2" pipe | 8" | 3/4" | $39.00 |
| C | 2-1/2" to 6" pipe | 12" | 1-1/4" | $49.00 |
| D | 8" to 10" pipe | 24" | 2-1/2" | $99.00 |
| E | Over 10" pipe | 32" | 3-1/2" | $129.00 |
Where to install
ASME A13.1 calls for a marker next to every valve and flange, at every change of direction and branch, on both sides of wall, floor and ceiling penetrations, and at regular intervals on straight runs — we recommend every 20 ft (6 m). Place markers where they are readable from the normal approach angle.
Need something else?
Any legend, any length, French or bilingual text, hazard pictograms, or the CAN/CGSB-24.3 colour scheme — all printed to order at no design charge. Use the Custom Pipe Markers listing, or call 1-855-919-9392 for volume pricing on full-facility projects.
Shipping: calculated at checkout. Made in Canada and shipped across North America, and internationally by DHL. Stock items ship in 1–3 business days; custom boards ship 1–3 weeks after you approve the proof.
Returns: stock items can be returned within 30 days, unused and in their original packaging. Custom and personalized items can't be returned, which is why nothing is made until you approve the proof. Full refund policy