QDL/QDLF, CDL/CDLF Series Lightweight Multi-stage Centrifugal Pumps

Product Overview
QDL/QDLF, CDL/CDLF Series Lightweight Multi-stage Centrifugal Pumps are lightweight vertical non-self-priming multi-stage centrifugal pumps with standard stainless steel flow parts. They feature compact structure, stable operation, low noise, easy installation and maintenance, with complete specifications and wide performance coverage, suitable for water supply and pressurization in various scenarios.

Model Nomenclature
Take model QDL F 8-20/1-P as an example:
Code Description
QDL: Lightweight vertical non-self-priming multi-stage centrifugal pump series
F: (Omitted for standard type) Flow parts made of standard stainless steel
8: Rated flow rate (m³/h)
20: Number of stages ×10
1: Number of impellers
P: Pipeline connection

Application Scope
• The standard type is suitable for liquid transmission, circulation and pressurization of cold and hot clean water, softened water.
• The stainless steel type is also applicable to slightly alkaline water, mineral water, distilled water, swimming pool water and other chloride-containing liquids, but the allowable temperature of the liquid needs to be reduced.

Working Conditions
• Medium: Clean cold and hot liquids, non-flammable and non-explosive, without solid particles or fibers
• Liquid temperature: -15℃ to +120℃
• Ambient temperature: Max +40℃
• Minimum inlet pressure: According to NPSH curve + minimum safe head of 0.5m water head

Performance Range
• Flow rate: 0.4~240 m³/h
• Head: 8~232 m
• Motor power: 0.37~110 kW
• Speed: 2900 r/min