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A malleable iron threaded coupling is a pipe fitting designed to connect two pipes of the same nominal size in a threaded piping system. Featuring female threads on both ends, it ensures a secure, aligned, and leak-tight connection. Manufactured from high-quality malleable iron and produced to international standards, threaded couplings are widely used in water supply, fire protection, gas, HVAC, and general industrial piping systems for reliable and durable pipe connections.
| Size | 1/8''-6'' | |||
| Material | malleable iron | |||
| Standard | ISO 5922/ISO 049/ISO 7-1,ISO 228 | EN 1562:1997/EN 10242:2003 | DIN 2950/1692/2999 | ANSI/ASTM A197/A197M ANSI/ASME B16.3, B16.14, B16.39 |
| Certifacate | FM/UL/CE/ABNT/SNI/SIRM/TSE/ISI | |||
| Surface Treatment | Nature Black | |||
| Hot Dip Galvanized | ||||
| Eletro Galvanized | ||||
| Work Pressures | PN25/2.5Mpa/363PSI/class150/25bar | |||
| Max Temperature | 200°C (392°F) | |||
| Tensile Strength | ≥350MPA | |||
| Elongation | ≥10% | |||
| Hardness | ≤HB150 | |||
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A malleable iron threaded coupling is a pipe fitting used to connect two pipes of the same nominal diameter in a threaded piping system. Designed with female threads on both ends, the coupling provides a secure and aligned joint, ensuring continuity of the pipeline. It is widely applied in water supply, fire protection, gas, HVAC, and general industrial piping systems.
High-strength malleable iron material: Offers excellent toughness, durability, and resistance to mechanical stress
Double female threaded design: Ensures precise pipe alignment and strong, leak-tight connections
Standardized threads: Manufactured in accordance with international thread standards for full interchangeability
Compact structure: Allows installation in confined spaces without compromising performance
Corrosion-resistant surface finish: Available in black or galvanized finish to suit different application environments
Threaded couplings are primarily used to join two straight pipes of the same size, extending pipe length or repairing existing pipelines. The threaded connection enables easy installation, disassembly, and maintenance, making couplings a practical solution for both permanent and temporary piping systems.
Typical applications include:
Water distribution and plumbing systems
Fire sprinkler and fire fighting pipelines
Gas and compressed air systems
HVAC installations
Industrial fluid and utility piping
Application Areas
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| fire | oil pipeline | gas pipeline | water treatment | water Pipeline Systems | HVAC |


Q: What materials are Tee Thread Fittings made from?
A: Tee Thread Fittings are manufactured from high-quality materials such as brass, stainless steel, or plastic, depending on the specific application needs.
Q: Can Tee Thread Fittings be used with gases or liquids?
A: Yes, Tee Thread Fittings are compatible with a variety of fluids, including gases and liquids. The precision threading ensures a tight, leak-proof seal for reliable performance.
Q: Are Tee Thread Fittings available in different sizes and thread types?
A: Yes, Tee Thread Fittings are available in a variety of sizes and thread types to meet the specific needs of your application.
Q: Can Tee Thread Fittings be used in high-pressure or high-temperature applications?
A: Yes, Tee Thread Fittings are designed to withstand high pressures and temperatures, making them suitable for a wide range of applications.
Q: How do I install a Tee Thread Fitting?
A: Installation of a Tee Thread Fitting typically involves threading it onto the pipes or tubes using a wrench or other suitable tool. Ensure that the threads are properly aligned and tightened to achieve a leak-proof seal. Always follow the manufacturer's instructions and safety guidelines during installation.