Boiler Feed Water pumps PE (ПЭ), ЦНСг

Designed for delivering treated water (feed water) into stationary steam boilers of the conventional (fossil-fueled) thermal power stations as well as to supply feedwater into waste-heat boilers at the power stations with combined-cycle and steam power plants.

Motor driven horizontal multistage diffuser centrifugal pumps of segmental or barrel type with a withdrawable cartridge of ring-section type. Single flow impeller arrangement, with all the impellers facing the same way. May be operated both at the constant and variable speed of rotation. The pump rotor is carried by the oil-ring or pressure lubricated plain bearings. Shaft sealing: packed glands or mechanical seals.

At the Customer’s request, the following options can be provided:

• Such a construction of studs for casing main joint that enables the use of hydraulic jacks (wrenches) for pre-tensioning the studs by making them only elongate before nuts screwing-on, thus avoiding torsional stresses arisen and ensuring their accurate and even tightening-up;
• Equipping with a balance disc-from-seat separation device to ensure the guaranteed axial gap in the balancing device, thus holding pump rotor unbound both during standstill and at start-ups.

Additional and technical information