AY Centrifugal Oil Pump

In the petrochemical, energy transmission, and other industrial sectors, the AY series single-stage, single-suction centrifugal oil pumps have become the core equipment of fluid transportation systems due to their performance. The equipment features an innovative design with axial suction and radial discharge, and the impeller, optimized through CFD fluid dynamics simulation, has achieved a hydraulic efficiency of up to 86%-92%, which is more than 15% more energy-efficient than traditional oil pumps. The specially designed mechanical sealing system supports bidirectional pressure compensation, maintaining stable operation even under extreme conditions such as a medium temperature of up to 350℃ and a viscosity of 3000 cSt.

The following is a detailed introduction to the AY Centrifugal Oil Pump:

I. Model and Naming Rules
The model naming rules for AY centrifugal oil pumps are illustrated with an example of "250AYS80":
"250" represents the diameter of the intake (mm).
"A" indicates a secondary modification according to the API 1610 Standard of the American Petroleum Institute for "General Service Centrifugal Pumps Used in Refineries."
"Y" indicates a centrifugal oil pump.
"S" indicates a double-suction impeller.
"80" indicates the single-stage head (meters).
Other models like "65AY100×2B" feature "65" as the inlet diameter, "AY" indicating a centrifugal oil pump, "100" for the single-stage head, "2" for the number of stages, and "B" for the number of blade cuts.
II. Technical Features
Pump Body Design: The AY centrifugal oil pump features a radial split casing, mounted with horizontal centerline support. The pump's suction and discharge flanges are vertically upward, facilitating installation and maintenance.
Sealing Performance: The shaft seal is not only suitable for soft packing but also can be interchanged with mechanical seals, enhancing the reliability and service life of the seal.
Bearing Configuration: The bearing housing is equipped with a set of radial ball bearings and a group of thrust ball bearings installed back-to-back. The bearings are lubricated with light oil, ensuring stable operation of the pump.
Easy Maintenance: For convenient maintenance, it is not necessary to disassemble the intake or exhaust piping. An elastic pin extended coupling (or an optional elastic diaphragm coupling) is used, allowing for easy removal of components such as the impeller, bearings, and shaft seals.
III. Material and Temperature Range
The AY centrifugal oil pump features a variety of material components, including HT250, ZG230-450, 45, 35CrMo, etc. The selection of these materials ensures the stable operation of components like the pump body, impeller, and shaft within different temperature ranges (-20℃ to +150℃, -45℃ to +400℃).
Section 4: Application Fields
The AY Centrifugal Oil Pump, due to its excellent performance and wide application range, is extensively used in the petrochemical, chemical industries, and other scenarios where oil media without solid particles need to be conveyed.
V. Market Conditions
In the market, AY centrifugal oil pumps are produced and sold by various manufacturers, with prices varying due to factors such as model, material, and performance. Users can select the appropriate model and configuration based on their actual needs.
In summary, the AY Centrifugal Pump is an excellent oil transportation equipment with diverse structures and wide applications, playing a crucial role in the oil and chemical industries. The current AY series has formed a complete matrix of 6 product lines and over 80 models, covering flow rates from 5 to 2000 m³/h and pressure ranges from 0.6 to 6.4 MPa. It has been verified in more than 1500 projects across 30 countries. With the deep application of digital twin technology, the next-generation intelligent pump sets will achieve self-optimization of energy efficiency, continuously driving the intelligent upgrade of process industries.