fuyangby@126.com
86 15188770013
fuyangby@126.com
86 15188770013
The quality evaluation of slurry pump procurement should focus on the four core dimensions of material wear resistance, hydraulic performance, structural reliability, and supporting motor power, and set acceptance conditions based on national standards and specific project conditions.
In industries such as mining, metallurgy, and power, slurry pumps are used to transport highly abrasive slurries containing solid particles, and their quality directly affects production efficiency and maintenance costs. Therefore, it is crucial to establish scientific quality assessment standards in the procurement process. According to industry practices and technical specifications, quality assessment not only covers the technical parameters of the product itself, but also includes aspects such as manufacturing processes, material selection, and after-sales service capabilities.
Core Quality Assessment Dimensions
The following are key quality assessment points summarized based on public bidding documents and technical standards:
Evaluation dimensions, specific requirements, reference standards/instructions
The material wear resistance of overcurrent components, impellers, protective plates, etc. must be made of high chromium alloys (Cr26 or above), and the wear-resistant layer thickness should be ≥ 6mm. High chromium cast iron can significantly extend the service life
Hydraulic performance, large pump efficiency ≥ 65%, small pump efficiency ≥ 50%; The flow head curve should be gentle to avoid unstable operation caused by fluctuations in operating conditions
Structural reliability. The thickness of the pump body is ≥ 12mm, and the welding parts require 100% non-destructive testing. Ensure long-term operational safety
The matching motor power should be 15% -20% higher than the theoretical value. If 30kW is required for calculation, a 37kW motor should be selected
Installation and operation stability, basic horizontal deviation ≤ 0.1mm/m, vibration speed ≤ 4.5mm/s, improper installation can easily cause vibration exceeding the standard
In addition, supplier qualifications are also an important factor indirectly reflecting product quality:
Whether it has ISO9001 quality management system certification;
Do you provide proof of similar equipment supply performance from large enterprises in the past three years;
Can a mining product safety label certificate be issued (if it involves coal mine environment).
Conclusion
When purchasing slurry pumps, a quality evaluation system should be constructed based on the four pillars of "materials+performance+structure+matching", and the warranty period (usually one year), acceptance method, and breach of contract liability should be clearly defined in conjunction with the contract terms. It is recommended to require suppliers to provide third-party testing reports, material composition analysis sheets, and typical application cases during the bidding or comparison stage to ensure that the purchased equipment meets the actual working conditions.
This article originates from https://www.fuyangpumps.com/news/505.html. Please indicate the source when reprinting.
(Editor in charge: Slurry Pump https://www.fuyangpumps.com/)
Copyright © Hebei Fuyang Pump Industry Co., Ltd.
