Brass Indoor Fire Hydrant

From the perspective of practical fire prevention logic, the "initial fire stage" within 3-5 minutes after a fire occurs is the critical period for controlling the fire (at this time, the flame range is less than 10 square meters and the heat radiation is weak). This German-style copper plug design precisely meets this requirement:
1. **Fire Resistance of the H62 Brass Body**:
In damp environments such as basements and underground garages, ordinary cast iron fire hydrants tend to experience rust and jamming of the handwheel within 1-2 years - and if the plug body cannot be opened during a fire, it will directly miss the initial fire suppression window. This copper plug's H62 brass has passed a 1000-hour neutral salt spray test without corrosion and can maintain smooth rotation of the handwheel for a long time, ensuring that "emergency use is immediate".
2. **Firefighting Efficiency of the German-style Quick Coupling**:
Its 2" FNPT German-style snap-fit connector can compress the connection time of the fire hose to ≤ 6 seconds (50% faster than traditional threaded interfaces) - in the initial fire scene filled with smoke, every second saved can increase the probability of fire control.
3. **Fireproof Maintenance Details with Chain-Attached Dust Cover**:
The black dust cover provided comes with a chain that connects to the plug body, which not only prevents the dust cover from being lost but also prevents dust and debris from blocking the interface (fire data shows that interface blockage can cause a 30%+ reduction in water output flow, directly weakening the suppression effect on Class A solid fires (wood, fabric)).