ALLLAND Boiler Steel Pipe Supply
Welcome to ALLLAND Steel Pipe Factory. Our fire sprinkler pipes strictly adhere to industry standards and are suitable for fire sprinkler systems in commercial, building, and industrial applications. They can be used for fire risers and fire water supply pipelines. Each pipe undergoes rigorous hydrostatic testing and is available with grooved or threaded ends, eliminating the need for secondary processing. Our Fire Sprinkler Steel Pipe division boasts extensive project experience and holds international certifications including ASTM A795, ASTM A53, and ASTM A135, ensuring your confidence in every purchase.
Alllandsteel is a steel pipe manufacturer based in China with 25 years of experience. The facility spans 22,000 square meters, represents a RMB 700 million investment, and operates four production lines (JCOE, ERW, SMLS, SSAW) alongside five coating lines. With an annual production capacity of 250,000 tons, the factory covers specifications ranging from Ø406 to Ø1524 and holds multiple international certifications (API/ASTM/EN/ISO/JIS). Focused on steel pipes, creating value for you!
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Fire Sprinkler Steel Pipe is a specialized steel water pipe used in building fire protection systems. It primarily connects fire sprinkler equipment to the fire water supply system, serving to regulate the distribution of firefighting water and control water pressure. Therefore, Sprinkler Steel Pipe must possess adequate pressure-bearing capacity and stability to function reliably within fire protection systems over extended periods.
O.D.:
21.3 mm – 323.9 mm (1/2“ – 12”)
W.T.:
12.0 mm – 10.0 mm
Length:
5.8 m / 6.0 m / 11.8 m / 12.0 m
Process:
Large-diameter ERW, Small-diameter SMLS
Standards:
ASTM A53 / ASTM A795 / ASTM A135 UL / FM
Surface Finish:
Black pipe, Hot-dip galvanized
Surface Treatment:
Black pipe, Hot-dip galvanized
Pipe Ends:
Plain end, Grooved end, Threaded end
Fire Sprinkler Steel Pipe Manufactured by ALLLAND
Dimensions comply with ASTM A795 / ASTM A53 / ASTM A135 and other standards.
The table shows ideal weights; actual weights may vary.
| Nominal Size | Imperial Size | O.D. (mm) | W.T. (mm) | Weight(kg/m) |
| DN15 | 1/2″ | 21.3 | 2.65 | 1.26 |
| 21.3 | 2.77 | 1.3 | ||
| DN20 | 3/4″ | 26.7 | 2.65 | 1.63 |
| 26.7 | 2.87 | 1.73 | ||
| DN25 | 1″ | 33.4 | 3.38 | 2.5 |
| 33.4 | 3.91 | 2.85 | ||
| DN32 | 1-1/4″ | 42.2 | 3.56 | 3.39 |
| 42.2 | 4.85 | 4.47 | ||
| DN40 | 1-1/2″ | 48.3 | 3.68 | 4.05 |
| 48.3 | 4.85 | 5.31 | ||
| DN50 | 2″ | 60.3 | 3.91 | 5.44 |
| 60.3 | 5.54 | 7.48 | ||
| DN65 | 2-1/2″ | 73 | 5.16 | 8.63 |
| DN80 | 3″ | 88.9 | 5.49 | 11.29 |
| 88.9 | 7.62 | 15.27 | ||
| DN100 | 4″ | 114.3 | 6.02 | 16.07 |
| 114.3 | 8.56 | 22.32 | ||
| DN125 | 5″ | 141.3 | 6.55 | 21.77 |
| 141.3 | 9.53 | 31.52 | ||
| DN150 | 6″ | 168.3 | 7.11 | 28.26 |
| 168.3 | 10.97 | 42.55 | ||
| DN200 | 8″ | 219.1 | 8.18 | 42.55 |
| 219.1 | 12.7 | 65.29 | ||
| DN250 | 10″ | 273 | 9.27 | 60.31 |
| 273 | 12.7 | 81.66 | ||
| DN300 | 12″ | 323.9 | 9.53 | 75.3 |
| 323.9 | 12.7 | 100.47 |
Fire Sprinkler Steel Pipe and ordinary water pipes both serve the function of conveying water, but Fire Sprinkler Steel Pipe are not merely for transporting water—they must absolutely remain functional during critical moments. Therefore, their manufacturing processes differ fundamentally.
Fire systems are lifelines, demanding strict compliance with regulatory standards. Comprehensive fire pipe standards exist globally, including: ASTM A795/ ASTM A53/ ISO 9001/ UL/FM, among others. These standards continuously safeguard our safety. Below are common standards for fire sprinkler pipes. Contact us for any requirements.
This is currently the most widely adopted and comprehensively defined international standard. It explicitly specifies piping dedicated to fire sprinkler systems, applicable for: Fire Sprinkler Systems, Fire Water Lines, and Fire Riser Systems.
The standard also stipulates pipe strength and toughness requirements, suitable for long-term static conditions in fire protection systems. Surface galvanization is explicitly mandated to withstand prolonged exposure to humid environments.
Pipes meeting this standard may be used for fire sprinkler systems under certain conditions. Note: This is not a fire-specific standard. Manufacturing to this specification requires strict adherence to project documentation.
Pipes produced to this standard typically serve auxiliary roles in fire protection systems and are not intended for primary fire protection systems or main fire risers.
UL certification is a highly authoritative third-party fire pipe certification in North America, widely applied in buildings, commercial facilities, and fire protection systems. This certification not only regulates pipe manufacturing processes, dimensions, and materials but also mandates compliance with factory quality management systems. Pipes bearing this certification are therefore qualified for fire protection applications.
M certification targets premium commercial and industrial piping systems, emphasizing long-term operational safety, overall system reliability, and risk management capabilities.
In high-demand piping systems, both FM and UL certifications are typically required concurrently.
ISO 9001 Quality Management System
Raw Material Chemical Composition and Mechanical Properties Testing
Weld Non-Destructive Testing (UT / ET)
Hydrostatic Pressure Testing
Dimensional and Visual Inspection
Mill Test Certificate (EN 10204 3.1)
Third-Party Inspection Reports (SGS / BV / TUV)
UL / FM Compliance Documentation (provided per project)
