AY Multi-stage centrifugal pump

Overview:
AY type oil pump series is the Y-type oil pump in the old series, based on the transformation and re-design of new products, has the following characteristics. o bearing body parts: the body to accompany the original 35.50 60 bearings were replaced with 45,55,70 bearing body, improve the reliability c, over-current parts of the country using hydraulic energy efficient pump hydraulic model, the average than the old Y-type oil pump The high efficiency 58%. 0 In order to maintain continuity, AY type oil pump structure type, installation size, performance and range of parameters remain the same Y-type oil pump to facilitate the replacement of old equipment. o a high degree of component commonality. Through standard parts common to several series of products, selection of refined, the body to King II, Ⅲ type of material-based. Increased body parts such as bearing steel, cast iron two, for the cold areas open to use, providing favorable conditions for marine. States bearing an air cooling, fan cooling, water-cooled three, according to the different temperature pump selection.

AY type multi-stage centrifugal oil pump series was designed based on old series Y-type oil pump ,with advanced foreign technology introduced. This series pumps can be used at petroleum refining production, petrochemical industry, transporting petro without Solid particle, liquefied petro gas and other inflammable, explosive poisonous liquid in high temperature or high pressure.

Main Characteristics:

● Bearing unit adopted advanced sliding bearing and axial thrust bearing .

● Hydraulic flow component adopted hydraulic module from high efficiency power saving pump, thus would be 2~5% higher average efficiency than Y type petro pump.

● Considering succession, the structure, installation dimension and performance parameter remains same as Y type petro pump.

● High universality of spare parts .

● According to different working condition, main parts uses II, Ⅲ category material. And bearing housing increased bearing steel, cast iron types, providing favorable conditions for the cold areas ,outdoors and marine using.

● All cooling of bearings would use water cooling.

Performance range:

flow value: Q = 6.25 ~155m³. / h

Head: H=70-603m

Medium temperature: t=-20℃~+300℃

Model specification:

Example:50 AY 35*7

50: diameter of intake

A: the first transformation

Y: centrifugal pump

35: single-stage head

7: degree

Structure:

AY type multi-stage centrifugal pump was with radially spilt sectional structure, the crossing bar combines suction casing, middle casing

And delivery casing. Pump rotor includes impeller, balance disk and other parts, Thrust force balanced by balancing disk ,balancing drum and thrusting.

Shaft:

Adopts radial sliding bearings or radial ball bearings, thrusting bearing was centripetal thrusting ball bearings, make remaining thrust force balanced.

Shaft sealing:

Adopts packing sealing and mechanical sealing, would be determined by customer requirement.

Transmission:

The pump driving by prime motor through flexible diaphragm linkage device, the pump was CCW rotating from the view of prime motor.