Unlike general industrial pressure regulators, this fire-specific unit is certified to withstand the unique dynamics of fire emergency conditions. Constructed from high-grade ductile iron with a thick, fire-retardant epoxy resin coating, it exhibits exceptional resistance to corrosion, UV radiation and extreme temperature fluctuations. The valve's internal assembly features a robust diaphragm and a precision pilot control assembly, paired with dual calibrated pressure gauges for real-time pressure monitoring. The pilot valve acts as the brain of the system, constantly sensing downstream pressure and automatically adjusting the main valve opening to maintain a set value-even when upstream pressure surges or water demand fluctuates rapidly.
The product line includes multiple size options (DN50 to DN200) to accommodate varying pipe diameters, with flanged end connections compliant with GB, EN and ANSI standards for seamless global integration. A standout feature is the integrated pressure test gauge port and blue handwheel adjustment, allowing maintenance teams to easily set and lock the desired outlet pressure without disrupting system operation. With a maximum working pressure of 1.6 MPa and an impressive burst pressure rating of over 3.0 MPa, this valve is built to handle the most demanding water supply conditions. Its full-bore design minimizes hydraulic resistance, ensuring maximum water flow reaches the fire site when needed most, without suffering from pressure drop issues common in other control valves.
Key functional benefits make it an industry standard:
Automated Stability: Maintains outlet pressure within a tight tolerance band, guaranteeing uniform water delivery to all sprinklers in a high-rise zone, preventing either under-extinguishing or flooding.
Emergency Manual Control: Equipped with a dedicated bypass handle, enabling firefighters or maintenance personnel to manually override the automatic mode for system testing or emergency flushing.
Zero Power Dependency: Operates solely on water pressure, making it 100% reliable during power outages-a critical safety factor for fire systems in high-rises.
Low Maintenance Footprint: The self-cleaning pilot mechanism and sealed internals reduce wear, requiring only annual calibration and visual inspection to ensure long service life.
