DY type multi-stage pumps are designed for the transportation of non-solid oily liquids and petroleum products within a temperature range of -20°C to 105°C.
Wet parts can be made from cast iron, stainless steel, or customized as per customer requirements.
Nomenclature:
DY280-43x8(P)
DY stands for multi-stage centrifugal oil pump.
280 refers to the design flow rate of 280 m³/h.
43 indicates the single-stage head of 43 meters.
8 represents the number of stages in the pump.
P denotes a self-balancing multi-stage pump.
Performance Curve & Parameters Table:
New Structure:
This pump features a symmetrical arrangement of rotor impellers into two opposing groups. This design helps offset axial thrust during operation, eliminating the need for traditional balancing systems. It improves efficiency and reduces maintenance costs over time.
High Efficiency:
Thanks to advanced hydraulic design, this self-balancing multi-stage pump is highly efficient and energy-saving. Unlike traditional models, it maintains optimal alignment of impeller and diffuser centers, ensuring consistent performance. Reduced leakage and volume loss further enhance its efficiency by up to 2-3% compared to conventional designs.
High Stability:
Through optimized impeller and diffuser configurations, along with reasonable clearance and wide axial throttle design, this pump maintains high stability and efficiency even after long-term operation.
Reliability of Mechanical Seal:
The absence of axial pulsation during start-up and shutdown ensures minimal impact on the mechanical seal, significantly improving its reliability..
Convenient Maintenance:
With a quick assembly and disassembly design, users can replace seals and bearings without removing the suction or discharge casings, saving significant maintenance time and effort.
Low Maintenance Rate:
By reducing vulnerable components, the product life is extended, leading to fewer maintenance intervals and lower overall costs.
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Production Process:
Casting + As-cast + CNC processing + Parts test (Vision inspection + Dimensional measurement + Impeller static equilibrium test) + Casings installation and pressure test + Rotor installation and dynamic balance test + Pump installation + mechanical seal test + Deflection tester for the coupling assembly + Test bed testing + Painting + Packing + Shipment
Factory Information:
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FAQ
Q1. What is your product range?
We also supply boiler water pumps, multistage centrifugal pumps, clean water pumps, sewage pumps, chemical pumps, oil pumps, self-priming pumps, centrifugal submersible pumps, single-stage pumps, and industrial pumps.
Q2. Are you a manufacturer?
Yes, we are a professional manufacturer of horizontal multi-stage pumps with over 10 years of experience.
Q3. What information should I provide for a quotation?
Please share the pump flow capacity, head, medium, temperature, material, and quantity. We will recommend the best fit for your application.
Q4. Can you supply motors together?
Yes, we have partnered factories and most domestic customers prefer full sets. For international orders, you can choose similar motors to avoid high customs duties.
Q5. What are your quality standards?
Our pumps comply with ISO9001:2008 and Chinese national standards for multi-stage centrifugal water pumps.
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