Alland Steel · Fire Sprinkler Steel Pipe
Alland Steel · Fire Sprinkler Steel Pipe

Fire Sprinkler Steel Pipes for Reliable Fire Suppression Systems

The steel pipe used in fire sprinkler systems is a key component of automatic fire suppression, transporting water or firefighting agents efficiently during emergencies. Manufactured in accordance with global fire safety regulations, it provides dependable, corrosion-resistant, and long-lasting performance for wet, dry, and preaction systems.

ASTM A795 / A53 / A135 UL 852 · FM 1630 Grooved / Threaded / Welded Ends Red Epoxy / Hot-Dip Galvanized

Manufactured from high-quality ERW carbon steel for uniform strength and high pressure resistance.

Available with red epoxy or hot-dip galvanized coatings for corrosion protection and easy identification.

Suitable for wet, dry, preaction, and deluge fire sprinkler systems in commercial or industrial projects.

UL Listed and FM Approved, ensuring compliance with international fire protection standards.

Fire Sprinkler Steel Pipe — UL / FM Certified for Fire Protection Systems

Nominal Diameter (NPS) DN15 – DN300 (½" – 12")
Wall Thickness Schedule 10 / 40 (or as per standard)
Length 5.8m · 6m · 11.8m · 12m (customizable)
Base Pipe Type ERW Welded Carbon Steel (Q235B / Q345B / Gr.A / Gr.B)
Quality Standards ASTM A795 · ASTM A135 · ASTM A53 · UL 852 · FM 1630 · GB/T 3091
  • Manufactured by ERW process ensuring uniform weld seams and high pressure reliability.
  • Red epoxy coating provides strong corrosion resistance and clear identification in sprinkler systems.
  • Hot-dip galvanizing forms a durable zinc-iron alloy for dry or preaction systems in humid environments.
  • Complies with UL 852 and FM 1630 standards for consistent performance in fire protection applications.
Available Finishes Red Epoxy Coated · Hot-Dip Galvanized · Black Painted
Connection Types Grooved · Threaded (NPT / BSPT) · Welded

Description

Fire sprinkler steel pipes are designed for automatic fire suppression systems, transporting water or fire-fighting agents to sprinkler heads for rapid and reliable discharge. Produced from ERW carbon steel, these pipes ensure uniform strength, leak-tight performance, and dependable pressure resistance in both wet and dry systems.

Each pipe is manufactured in accordance with ASTM A795, A135, and A53 standards and listed under UL 852 and FM 1630. Available in red epoxy or hot-dip galvanized finish, they provide excellent corrosion protection and easy identification within complex fire protection networks.

  • UL / FM approved for fire suppression systems.
  • ERW construction for consistent strength and seam quality.
  • Red epoxy and hot-dip galvanized coatings for wet or dry lines.
  • Grooved, threaded (NPT / BSPT), and welded ends for quick installation.
Product NameFire Sprinkler Steel Pipe (UL / FM Approved)
Base Pipe TypeERW Welded Carbon Steel
Size RangeDN15 – DN300 (½″ – 12″)
Wall ThicknessSchedule 10 / 40
Length5.8 m · 6 m · 11.8 m · 12 m (customizable)
Surface FinishRed Epoxy Coated · Hot-Dip Galvanized · Black Painted
Connection TypeGrooved · Threaded (NPT / BSPT) · Welded
CategoryDetails
StandardsASTM A795 · ASTM A135 · ASTM A53 · GB/T 3091
CertificationsUL 852 · FM 1630 · CE · ISO 9001
Steel GradesGr.A · Gr.B · Q235B · Q345B

Specifications Sheet

Fire Sprinkler Steel Pipe Specifications Sheet 1 Fire Sprinkler Steel Pipe Specifications Sheet 2

Main Applications

Fire sprinkler steel pipes are widely used in automatic fire protection systems for commercial, residential, and industrial buildings. They are designed to transport pressurized water or fire-fighting agents through networks of sprinkler heads, ensuring fast response and reliable suppression during fire emergencies.

Wet Sprinkler Systems

Used in standard fire protection systems where pipes remain filled with pressurized water, providing immediate discharge upon sprinkler activation.

Dry and Pre-action Systems

Applied in cold or humid areas to prevent internal corrosion and freezing, with hot-dip galvanized pipes ensuring long-term durability.

Deluge & Foam Systems

Suitable for industrial facilities and fuel storage areas where rapid, large-volume water or foam delivery is required for fire suppression.

Building & Infrastructure Projects

Installed in office towers, warehouses, hospitals, parking structures, and manufacturing plants as part of fixed fire suppression networks.

Retrofit & Maintenance Upgrades

Ideal for replacing or upgrading existing piping systems to meet updated UL / FM and NFPA fire protection standards.

Advantages

  • UL / FM Certified: Fully approved for global fire protection applications, meeting UL 852 and FM 1630 requirements.
  • Reliable Performance: ERW construction ensures uniform weld seams and high pressure resistance.
  • Corrosion Protection: Red epoxy or hot-dip galvanized coatings provide long-term durability in wet and dry systems.
  • Easy Installation: Grooved, threaded, and welded ends allow quick connection with common sprinkler fittings and couplings.
  • Low Maintenance: Smooth internal surface and high-quality coatings minimize rust and system blockage, extending service life.

Packing & Transportation

Fire sprinkler steel pipes are securely packed to prevent coating damage and ensure safe delivery to project sites. Each pipe is fitted with protective end caps, separated by soft spacers, and bundled to maintain alignment and surface integrity during handling and shipping.

  • Bundle or Frame Packing: Pipes are fastened with steel straps or wooden frames, using protective pads to avoid coating contact.
  • Container Shipping: Recommended for pipe lengths up to 6 m and medium-sized projects to ensure clean and efficient loading.
  • Bulk Transport: Longer or large-diameter pipes are placed on wooden saddles with multilayer wrapping for stability and protection.