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OEM/ODM
Product Description
| Product Name | Storz 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 |
The Aluminum Forging Storz Fire Hose Coupling sets the standard for rapid, reliable hose connections in professional firefighting, leveraging the iconic Storz design with advanced aluminum forging technology. Unlike cast couplings, its hot-forged aluminum construction creates a microstructure with 40% higher tensile strength while reducing weight by 30% compared to brass alternatives. This makes it ideal for applications where both durability and maneuverability matter.
Available in sizes from 65 mm (2.5″) to 150 mm (6″), with lug distances ranging from 89 mm (75-B) to 133 mm (110-A), this coupling meets EN 14420-3 standards for fire hose couplings, ensuring compatibility with global firefighting systems. Its symmetrical design allows identical couplings to connect to each other (male-female uniformity), eliminating the need to distinguish between genders during urgent connections. The maximum operating pressure of 16 bar (232 psi) with a burst pressure rating of 48 bar (696 psi) ensures safety in high-demand scenarios.
The coupling’s T6 heat-treated aluminum alloy forging process eliminates porosity and weak points found in cast components, resulting in a tensile strength of 310 MPa—strong enough to withstand heavy impact without cracking. The forging process also creates a smoother internal flow path, reducing pressure loss by up to 15% compared to cast couplings, preserving critical water pressure in long hose lines.
A hard anodized finish (25–30 μm thick) provides superior corrosion resistance, exceeding 500 hours of salt spray testing per ASTM B117. This makes it suitable for both freshwater and moderately saline environments, including coastal firefighting operations.
The Storz design revolutionizes connection speed: two couplings align via guide lugs, then a half-turn rotation locks them securely. This process takes under 3 seconds—far faster than threaded couplings which require multiple turns. The NBR (nitrile rubber) seal with a stainless steel backup ring maintains a watertight seal across temperature extremes from -40°C to 110°C (-40°F to 230°F), ensuring reliability in freezing or high-heat conditions.
Designed for global use, this coupling is compatible with all Storz-compliant hoses and equipment, including fire trucks, hydrants, and standpipes. It integrates seamlessly with foam proportioners, monitors, and other firefighting accessories, making it a versatile choice for industrial, municipal, and military applications. Optional safety clips prevent accidental disconnection under pressure, a critical feature in mobile operations like tanker relays.
This Storz coupling excels across diverse firefighting and industrial scenarios:
• Municipal Firefighting: Enables rapid hose deployment from fire trucks to hydrants or attack lines, reducing response time in structural fires.
• Industrial Facilities: Used in refineries, chemical plants, and power stations for high-pressure water and foam lines, where reliability prevents hazardous leaks.
• Airport Firefighting: Lightweight design facilitates quick connection of aircraft rescue and firefighting (ARFF) vehicle hoses to hydrants or portable tanks.
• Maritime Operations: Anodized aluminum models resist saltwater corrosion for shipboard fire systems and coastal rescue operations.
The symmetrical, lug-based connection requires just a 180° rotation to lock, compared to 5–10 full turns for threaded couplings, reducing connection time by up to 80% during critical operations .
Size selection matches your hose diameter: 65 mm (2.5″) for attack lines, 100 mm (4″) for supply lines, and 150 mm (6″) for large-diameter hose (LDH) in tanker operations. Refer to EN 14420-3 for exact sizing guidelines .
Yes, the anodized aluminum and NBR seal are non-toxic and meet NSF 61 standards for potable water contact, making it suitable for emergency water distribution in disaster relief.
The NBR seal is field-replaceable without special tools. Simply remove the retaining ring, replace the seal, and reinsert the ring—maintenance that takes less than 2 minutes .
With proper maintenance (annual inspection and seal replacement), the forged aluminum body provides a service life of 10+ years, outlasting cast couplings by 3–5 years in heavy use.
