Description
| Size | 1/8″ to 20″ |
|---|---|
| Material | Carbon Steel（Galvanized Coating) |
| Wall Thickness | Sch 10 – Sch 160 |
| Standard | ASTM A53 |
| Section Shape | Round |
| Application | Galvanized fire sprinkler pipe is used in fire protection systems. |
| Surface Treatment | Galvanized Coating |
| Type | Fire Sprinkler Pipe |
| Ends | Plain End, Threaded End, Grooved End |
| Outer Diameter | 10.3 mm – 508 mm |
| Origin | China |
| Package | Standard Seaworthy Packing, Customized |
| Trademark | SANVO |
| Free Sample | Yes |
What is ASTM A53?
ASTM A53 is a standard specification for carbon steel welded and seamless pipe formulated by the American Society for Testing and Materials (ASTM). ASTM A53 standard is suitable for carbon steel pipes and fittings, mainly used to transport steam, air, water, gas, and for mechanical uses.
Requirements of ASTM A53 for Pipes
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Manufacturing Requirement
Pipes must not have obvious defects such as cracks, folds, dents, or bubbles.
The weld must be complete and continuous.
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Hydrostatic Test
Each steel pipe must pass the specified water pressure test to ensure there is no leakage at the rated pressure.
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Dimensions
There are clear tolerance regulations for wall thickness, outer diameter, length, ellipticity, and straightness.
ASTM A53 supports plain end and NPT threaded end.
Applications of ASTM A53 in Fire Protection Systems
In the fire protection regulations of the United States and many other countries, ASTM A53 is a commonly used standard for steel pipe.
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Main Pipes of the sprinkler system
ASTM A53 is used as the main and branch pipes.
Make use of Schedule 10 / Schedule 40.
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Threaded connection
After the steel pipe is produced in accordance with ASTM A53, it is turned with NPT thread and used for:
Small-diameter spray branch pipe
Valve, fittings, and nozzle connection
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Galvanized steel pipe
Applicable to:
Dry System
Exposed to high humidity or corrosive environments
Outdoor area
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Compatible with the Grooved System
ASTM A53 pipe can be used for processing:
Roll Groove/Cut Groove
It pairs well with grooved joints
Galvanized Coating Benefits for Fire Sprinkler Pipe
Galvanized sprinkler pipe can obviously promote reliability and durability, and is widely used in fire protection systems.
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Strengthen Corrosion Resistance
Steel sprinkler pipe forms a continuous metallic zinc coating, which can isolate oxygen and moisture, effectively protecting the steel pipe from oxidation corrosion, condensate water, high wet environments, and outdoor environments.
The lifespan of galvanized fire sprinkler pipe can exceeds that of black steel pipes by 2 to 5 times or more.
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Suitable for Wet and Dry Environments
Galvanized pipes perform better under the following working conditions:
Dry Pipe System
Wet air is often present inside the pipes, and the corrosion rate is higher than that of wet systems. Galvanized pipes can significantly reduce the risk of “microbial corrosion (MIC)”.