API 610 Bb4 Multistage Centrifugal Oil Pump (AYD Series)

General:
Type AYD middle pressure multistage centrifugal pumps are designed and manufactured according to BB4 pump specification in API610-10TH and the patents of Great Pump.

Performance:
Capacity: Q = 3~70 m3/h
Head: H = 125~600 m
Working temperature: T = - 20~300 degree centigrade

Application:
Hydrofining
Natural gas industry
Petrochemical industry
Water supply units
Boiler feed water supply for power plants

Structure Features:
1. Structured radial split, both ends support, multistage and ring section design. The pump is supported at either feet or center line.
2. The suction stage, discharge stage and the section rings are all made of integrate forgings without manufacturing defects, which makes the pump long life span.
3. The stage of the pump can be as much as 12 stages. Since the pumps shaft is rigid enough with small stationery deflection, it can run smoothly with low vibration.
4. The axial thrust is taken by the balancing disc and balancing drum completely, while the thrust bearing functions to protect the thrust system and the mechanical seal.
5. Either rolling or sliding bearings can be used. The bearing housing can be cooled by water. No cooling is required, in the case that the temperature of working product is not more than 60 degree centigrade.
6. All kinds of cartridge mechanical seals specified in API 682 can be used to meet different working conditions.
7. In the case of heavy duty, independent oil station may be applied.
8. In order to monitor and protect the operation condition of the pumping unit, sensing instruments to measure the working temperature, pressure, vibration, displacement etc. Up to DCS may be supplied.

Application:
Petroleum fining; Nature gas industry; Petrochemical industry; Water supply units; Boiler feed water supply for power plants.