Rated at 4 kW (5.5 HP) and capable of delivering up to 13.5 m\u00b3\/h at a maximum working pressure of 11 bar, the Foras KB 550 T is the top-of-range twin-impeller model in the KB series \u2014 built for pressurisation circuits and water-transfer duties that demand sustained high head alongside generous flow. Its 1\u00bd” female suction port and 1\u00bc” female discharge port connect directly into threaded pipework, and the three-phase 230\/400 V motor (9.1 A) suits both new installations and like-for-like replacements in commercial or agricultural plant rooms.<\/p>\n
The KB series distinguishes itself from single-impeller centrifugal pumps through its two counter-opposed impellers, which combine to deliver high head without sacrificing delivery volume \u2014 making the KB 550 T well suited to pressurisation systems in civil and industrial plant, pool heating circuits, irrigation headers, and water-transfer applications where suction lift is up to 6\u20137 metres. The Noryl impeller material resists corrosion and offers good dimensional stability across a wide temperature range, up to 90 \u00b0C.<\/p>\n
The cast-iron motor bracket and pump casing are matched to a sealed, externally ventilated three-phase motor carrying IP44 ingress protection and Class F winding insulation \u2014 appropriate for damp plant-room environments. The motor incorporates built-in thermal overload protection that automatically disconnects the winding if operating temperature is exceeded, guarding against dry-run or blocked-pipe damage. A Type C mechanical seal provides a reliable dynamic seal between the wet end and the motor bearing housing.<\/p>\n
With overall dimensions of 463 mm (L) \u00d7 266 mm (W) \u00d7 305 mm (H), the KB 550 T is designed for indoor or weatherproof-enclosure mounting on a rigid plinth or common base frame. Female-threaded suction and discharge ports simplify connection to standard BSP-threaded pipework or manifolds. As this pump is not self-priming, it must be installed with the wet end fully primed before start-up; supply cabling is not included and connection should be carried out by a qualified electrician.<\/p>","protected":false},"excerpt":{"rendered":"