What is the operating pressure range and maximum flow rate?The nozzle is designed for a working pressure range of 0.8 to 1.6 MPa (8-16 bar). At the optimal pressure of 1.0 MPa, it achieves a standard flow rate of 400-500 L/min (105-132 GPM). For industrial applications requiring higher flow, custom variants are available to reach up to 600 L/min.
How do I switch between spray patterns, and is it possible to do so under pressure?Pattern adjustment is achieved by rotating the color-coded control collar (red for jet, black for fog). While the mechanism is designed for smooth operation, we recommend closing the inlet valve first to relieve pressure before switching patterns to prevent mechanical stress or fluid spray hazards.
Is this nozzle compatible with all standard fire hoses?Yes, it features a universal quick-connect coupling that fits all standard National Fire Protection Association (NFPA) and European Standard (EN) fire hose threads (e.g., Storz and Instantaneous couplings). It is also compatible with low-pressure supply lines commonly found in residential and light commercial settings.
What maintenance is required to ensure long service life?Routine maintenance includes monthly visual inspections for cracks, leaks or wear on the O-rings and sealants. After each use, the nozzle should be flushed with clean water to remove debris or chemical residues, dried thoroughly and stored in a cool, dry place. Annual disassembly and lubrication of moving parts with food-grade silicone grease are recommended to preserve smooth operation.
Can it be used with foam concentrate, and what type of foam is suitable?Yes, it is compatible with low-expansion foam concentrates such as AFFF (Aqueous Film-Forming Foam) at a dilution ratio of 3% or 6%. When mixed with water, it generates a stable foam blanket that effectively smothers flammable liquid fires. However, it is not designed for high-expansion foam systems.
Does the nozzle have any anti-freeze features for cold climates?While the base model does not include integrated heating, the smooth internal bore design minimizes trapped water, reducing the risk of freezing and cracking. For sub-zero environments, we offer an optional anti-freeze kit that includes a drain valve and thermal insulation cover to ensure operational readiness in temperatures as low as -20°C.
