UL Listed Fire Pipe

fire sprinkler pipes​

UL Listed Fire Pipe

UL certified fire protection pipes refer to products that have passed rigorous testing by the UL safety laboratory in the United States. Such pipes can stably transport water or fire extinguishing media in fires.

UL certification is a globally recognized safety standard, especially in North America, the Middle East, Southeast Asia, and other places. Such pipes have material strength, corrosion resistance, high pressure resistance, and other properties. Large-scale projects require the use of UL certified fire protection products.

UNIASEN’s UL certified fire protection pipes come in several types: galvanized, black steel, and painted. They meet UL 852 standards and are ideal for commercial buildings, factories, and warehouses.

UL certified fire pipes by coating type

UNIASEN’s UL certified fire pipes focus on reliability and adaptability. They help engineers meet regulations and lower fire risks.

Hot dip galvanized UL certified fire pipes

Hot-dip galvanized UL certified fire pipes

  • Features‌: The surface galvanized layer enhances rust resistance and is suitable for humid or highly corrosive environments.
  • Application‌: Widely used in outdoor fire hydrant systems, industrial plants, etc.
Black UL certified fire pipes

Black UL certified fire pipes

  • Features‌: Uncoated steel pipes, with lower costs, are suitable for dry, low-corrosion indoor environments.
  • Application‌: Commonly found in fire water supply pipes in warehouses and underground garages.
Painted UL certified fire pipes

Painted UL certified fire pipes

  • Features‌: The outer layer is coated with fire retardant paint, which combines rust prevention and beauty, and the color can be customized.
  • Application‌: Places with requirements for appearance, such as shopping malls and hotels.

Specifications and dimensions

  • Material Standard: Produced according to ASTM or international general steel pipe standards
  • Coating Type: Optional black paint, epoxy resin, galvanized, red primer, suitable for different environments
  • Size Range: 1/2 inch to 12 inches in diameter, 5 to 21 feet in length
  • Wall Thickness Selection: SCH10/SCH30/SCH40, SCH40 has the thickest wall and can withstand a pressure of ≥175 pounds per square inch
  • Pipe End Treatment: Supports three connection methods: flat end, groove, and thread

UL listed fire protection pipe sizes

N.D. O.D. SCH 10 SCH 30/40
WALL THICKNESS NOMINAL WEIGHT WALL THICKNESS NOMINAL WEIGHT
(mm) (Inch) (mm) (Inch) (mm) (Inch) (kg/mtrs) (lbs/ft) (mm) (Inch) (kg/mtrs) (lbs/ft)
15 1/2 21.3 0.84 —- —- —- —- 2.77 0.109 1.27 0.85
20 3/4 26.7 1.05 2.11 0.083 1.28 0.96 2.87 0.113 1.69 1.13
25 1 33.4 1.32 2.77 0.109 2.09 1.41 3.38 0.133 2.5 1.68
32 1-1/4 42.2 1.66 2.77 0.109 2.69 1.81 3.56 0.14 3.39 2.27
40 1-1/2 48.3 1.9 2.77 0.109 3.11 2.09 3.68 0.145 4.05 2.72
50 2 60.3 2.38 2.77 0.109 3.93 2.64 3.91 0.154 5.45 3.66
65 2-1/2 73 2.88 3.05 0.12 5.26 3.53 5.16 0.203 8.64 5.8
80 3 88.9 3.5 3.05 0.12 6.46 4.34 5.49 0.216 11.29 7.58
90 3-1/2 101.6 4 3.05 0.12 7.41 4.98 5.74 0.226 13.58 9.12
100 4 114.3 4.5 3.05 0.12 8.37 5.62 6.02 0.237 16.09 10.8
125 5 141.3 5.56 3.4 0.134 11.58 7.78 6.55 0.258 21.79 14.63
150 6 168.3 6.63 3.4 0.134 13.85 9.3 7.11 0.28 28.29 18.99
200 8 219.1 8.63 4.78 0.188 25.26 16.96 7.04 0.277 36.82 24.72
250 10 273.1 10.75 4.78 0.188 31.62 21.23 7.08 0.307 51.05 34.27

Chemical requirements

Our steel for fire protection pipes is produced strictly according to standard ratios. The composition of steel of different grades (A/B/C) is clearly controlled to ensure rust resistance and service life:

  • Carbon content: no more than 0.25% for grade A, no more than 0.3% for grade B, and no more than 0.35% for grade C
  • Manganese content: 0.27%~0.93% for grade A, 0.29%~1.06% for grades B and C
  • Phosphorus and sulfur: no more than 0.025% for all grades
  • Silicon content: minimum 0.1%

Mechanical properties

The pipes must meet the hard indicators of tensile strength, compression resistance, and ductility to ensure that they will not deform or break during a fire:

  • Tensile strength‌: Grade A ≥48,000 psi, Grade B ≥60,000 psi, Grade C ≥70,000 psi
  • Yield strength‌: Grade A ≥30,000 psi, Grade B ≥35,000 psi, Grade C ≥40,000 psi
  • Ductility‌: All pipes pass the bending test and there are no cracks after bending
  • Hardness‌: Meet UL standards to prevent damage during installation

High-grade (such as Grade C) pipes are suitable for high-pressure main water supply systems, and Grade A can be used in ordinary areas to reduce costs.

Why choose UNIASEN’s UL certified fire protection pipes?

‌Authoritative certification guarantee‌UNIASEN’s pipes have passed UL laboratory testing and meet the national standards of the United States and Canada, meeting the rigid requirements of engineering bidding in many places around the world.Flexible customization capabilities‌Provide a variety of sizes (such as 2 inches, 4 inches) and coating types, support customization according to engineering needs, and adapt to different fire protection systems (sprinklers, fire hydrants, etc.).Strict quality control‌From raw materials to finished products, each process is tested according to UL standards, and each batch of products is sampled and tested for performance. UL organizations regularly spot check production lines to ensure long-term quality stability.

FAQs

UL certification is a safety test done by a third-party organization. In simple terms, it is to check whether the fire protection pipe meets safety standards and ensure that it can work properly in the event of a fire. Passing this certification means that the product meets the safety requirements recognized by the industry.

Fire protection pipes are directly related to the safety of people and property in fires. With UL certification, everyone can trust that these pipes are of reliable quality and will not cause problems when encountering fires. In addition, laws in many places require the use of UL-certified fire protection equipment, otherwise it may be illegal.

The UL-certified fire protection pipes provided by UNIASEN include galvanized steel pipes, stainless steel pipes and other types, covering different sizes (such as 2 inches, 4 inches, etc.).

UL-certified fire protection pipes mainly meet standards such as UL 852 UL 2442 (galvanized steel pipes) and UL 213 (stainless steel pipes).

This type of pipe can be used in automatic sprinkler systems, fire hydrant systems, foam fire extinguishing systems, etc. Whether it is a commercial building, factory or warehouse, as long as fire protection is needed, it can basically be used.

The main difference is the pipe wall thickness and pressure bearing capacity. Schedule 10 pipes have thinner walls and are suitable for scenes with lower pressures; Schedule 40 pipes have thicker walls and can withstand higher pressures, such as main water supply pipes or high-risk areas.

  • We use raw materials that meet the standards;
  • Each step of the production process is checked according to UL requirements;
  • Every batch of products is tested by sampling.
  • UL organizations regularly visit factories for spot checks.

Related Products

China ERW Pipe manufacturer

Welded Pipe

ssaw steel pipe manufacturer and supplier

SSAW Steel Pipe

steel hollow section-hollow structural section-Uniasen

Hollow Structural Section

seamless steel pipe-SMLS Pipe

Seamless Steel Pipe

china pipe fitting-carbon steel pipe fittings

Pipe Fittings Pipe Fittings

Fire Sprinkler Pipe

Line Pipe

ASTM A106 Seamless Steel Pipe