ESFR-202 Early Suppression Fast Response (ESFR) nozzle has a large flow coefficient and a specially designed splash plate, which enables the nozzle to spray large-diameter, high-energy water droplets and form a spherical water flow below it. While cooling the hot air formed in the early stage of the fire, it can penetrate the flame and directly cool the combustion body. Therefore, this sprinkler has special advantages for protecting high-stack and high-shelf warehouses.
(1) Nominal diameter: φ20mm, interface thread R23/4″;
(2) Flow coefficient: K=202;
(3) Response time index (RTI): ≤28±8(m s)5;
(4) Rated working pressure: 1.2MPa;
(5) Operating temperature: 68°C, 74°C, 82°C, 93°C;
(6) Installation form: pendant type, vertical type;
(7) Maximum clearance height: 12m;
