Early suppression fast response sprinklers ESFR-20/68-U early suppression sprinklers. Is a large diameter sprinkler, automatic sprinkler system is a major original composition, due to early suppression fast response sprinkler glass imported from Germany JOB2.5mm ball, large nozzle diameter and a larger deflector, the response time index (RTI) ≤ 28 ± 8 (ms), which has a fast response fire, traffic flow, drop diameter, fire-fighting and high efficiency at high pressure and without Sprinklers located within the shelf and then under the conditions of acceptance of high-risk fire challenges. Can be used for fire detection, but also by the automatic sprinkler put out the fire. Early suppression fast response sprinkler heads are designed for high-bay warehouse with high stacking design, the more common nozzle has a special advantage. Early suppression fast response sprinklers to protect the general danger, storage Ⅰ - Ⅳ type items, plastics, mixed goods warehouse.