FIFFCO FJS Series Jockey Pumps are engineered for maintaining system pressure in fire protection networks—ideal for compensating minor leakage and preventing unnecessary main fire pump starts. Built as a multistage, compact and proportional design, the FJS series emphasizes quiet operation and energy efficiency while delivering reliable pressure support for sprinkler and hydrant systems. The range covers capacity 0–110 m³/h, head up to 0–305 m, and DN 25–100 mm, running at 2900 rpm with Tmax 120°C. Power options span 0.37–45 kW, with 380/400/415 V, 50 Hz, Class F / IP55, and S1 continuous duty suitability. The design includes AISI304 impeller and shaft, mechanical seal, and grease-lubricated rolling bearings. Additional highlights include techno-polimer impeller, cast iron G20 threaded suction/discharge ports, NSK bearings, and wear-resistant mechanical seal—making FJS a dependable pressure maintenance pump for fire pump packages and building fire protection systems.