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Product Description
The Machino Aluminum Forging Fire Hose Coupling represents a breakthrough in firefighting connectivity, combining the strength of forged aluminum with lightweight design for enhanced mobility. Engineered to meet the rigorous demands of professional fire services and industrial applications, this coupling ensures secure, leak-free connections between hoses, hydrants, and nozzles. Compliant with NFPA 1963-2025 and UL 213 standards, it delivers reliable performance in high-pressure environments while reducing operator fatigue due to its 30% lighter weight compared to traditional brass couplings. Ideal for both stationary systems and mobile firefighting units, the Machino coupling is a preferred choice for teams prioritizing durability, efficiency, and safety.
| Product Name | Machino Coupling | Lead Time | 10-30days |
| Technological Process | Forging | Suitable Medium | Water/Foam |
| Working Pressure | ≧2.5MPa（360PSI） | Package | Standard Export Carton |
| Bursting Pressure | 6.0MPa(870PSI) | MOQ | 10PCS |
Crafted using precision aluminum forging technology, the coupling boasts a tensile strength of 350 MPa, exceeding industry standards for impact resistance. The forging process eliminates porosity, ensuring uniform density and preventing cracks under extreme pressure. This material choice reduces weight to 0.8–1.2 kg (depending on size), making it easier to handle during extended operations .
Designed to withstand 2.7 MPa (392 PSI) working pressure and 8.1 MPa (1,175 PSI) burst pressure, the coupling is suitable for high-intensity firefighting scenarios, including industrial fire suppression and municipal hydrant systems. Its reinforced neck design prevents deformation under sustained pressure .
The coupling features a hard-anodized finish (10–15 μm thickness) that resists saltwater, chemicals, and UV damage. It undergoes 500 hours of salt spray testing without corrosion, making it ideal for marine, coastal, and chemical plant applications. The precision-machined threads (tolerance ±0.03 mm) ensure a tight seal and minimize wear from repeated connections .
Available in 1.5", 2.5", and 4" sizes, the coupling fits standard NH (National Hose) and NST (National Standard Thread) fittings. Its interchangeable design allows seamless integration with existing hoses, nozzles, and hydrants, reducing the need for specialized equipment .
Meets NFPA 1963-2025 requirements for thread dimensions, pressure testing, and durability. It is also certified by UL 213 and CE, ensuring global acceptance in professional firefighting settings. The coupling includes a built-in O-ring retention groove to prevent seal displacement during high-pressure use .
Municipal Fire Departments: Used in hose lines connecting hydrants to pumper trucks, enabling rapid water flow during structural fires.
Industrial Facilities: Integral to fire suppression systems in refineries, chemical plants, and manufacturing units, where corrosion resistance is critical.
Marine Firefighting: Ideal for shipboard hose systems and offshore platforms, thanks to its saltwater resistance.
Wildland Firefighting: Lightweight design enhances portability for crews operating in remote areas with limited equipment access.
Emergency Services: Compatible with portable pumps and rescue vehicles, supporting quick deployment during natural disasters.
Q: How does aluminum forging compare to brass in terms of durability?
A: Forged aluminum offers comparable strength to brass at 30% lower weight. While brass is more malleable, the Machino coupling’s anodized finish ensures superior corrosion resistance in harsh environments.
Q: Can the coupling be used with foam concentrates?
A: Yes, it is compatible with all standard firefighting foams. Rinse with clean water after use to remove residue and prevent thread clogs.
Q: What is the recommended maintenance schedule?
A: Inspect threads and O-rings monthly for wear. Replace O-rings annually or after 100 connections. Lubricate threads with silicone-based grease to reduce friction.
Q: What sizes are available?
A: The coupling comes in 1.5", 2.5", and 4" diameters, with NH/NST thread compatibility for each size.
