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Product Description
Black Painted Fire Pipes are carbon steel pipes coated with a black anti-corrosion fire-resistant paint, commonly used in dry pipe systems, pre-action systems, or areas not constantly exposed to water.
They are produced to ASTM A795, A53, or BS1387 standards, with Schedule 10/40 wall thickness, available in plain, grooved, or threaded ends.
| Length: | 6m / 5.8m / 11.8m / 12m, customized | |||||||||
| Standards: | ASTM A135, Type E, Grade A (Schedule 10, 1–10 NPS)& ASTM A795, Type F, Grade A (Schedule 10, 1 1/4–2 1/2 NPS) | |||||||||
| Coating: | black or hot-dip galvanized to meet FM / UL requirements for dry | |||||||||
| Certification: | UL / FM ，ISO 9000-2001 | |||||||||
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| NPS | DN | Outer Diameter(mm) | Schedule 10 | Schedule 40 | ||||
| Wall Thickness | Unit Weight | Test Pressure | Wall Thickness | Unit Weight | Test Pressure | |||
| (mm) | (kg/m) | (kpa) | (mm) | (kg/m) | (kpa) | |||
| 1/2" | 15 | 21.3 | - | - | - | 2.77 | 1.27 | 4800 |
| 3/4" | 20 | 26.7 | 2.11 | 1.28 | 4800 | 2.87 | 1.69 | 4800 |
| 1" | 25 | 33.4 | 2.77 | 2.09 | 4800 | 3.38 | 2.5 | 4800 |
| 1-1/4" | 32 | 42.2 | 2.77 | 2.69 | 6900 | 3.56 | 3.39 | 6900 |
| 1-1/2" | 40 | 48.3 | 2.77 | 3.11 | 6900 | 3.68 | 4.05 | 6900 |
| 2" | 50 | 60.3 | 2.77 | 3.93 | 6900 | 3.91 | 5.45 | 6900 |
| 2-1/2" | 65 | 73 | 3.05 | 5.26 | 6900 | 5.16 | 8.64 | 6900 |
| 3" | 80 | 88.9 | 3.05 | 6.46 | 6900 | 5.49 | 11.29 | 6900 |
| 4" | 100 | 114.3 | 3.05 | 8.37 | 8300 | 6.02 | 16.09 | 8300 |
| 5" | 125 | 141.3 | 3.4 | 11.58 | 8300 | 6.55 | 21.79 | 8300 |
| 6" | 150 | 168.3 | 3.4 | 13.85 | 6900 | 7.11 | 28.29 | 8300 |
| 8" | 200 | 219.1 | 4.78 | 25.26 | 5500 | sch30 | 36.82 | 8300 |
| 7.04 | ||||||||
| 10" | 250 | 273.1 | 4.78 | 31.62 | 4800 | sch30 | 51.05 | 6900 |
| 7.8 | ||||||||
ERW Carbon Steel Tube Producing Process
Factory overview
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