
Product Details
The D Type Horizontal Multistage Centrifugal Pump is a high-head, segmental-designed pump built for reliable water delivery in applications requiring elevated discharge pressure. Its horizontal multi-stage structure delivers smooth, pulsation-free flow with high efficiency, making it suitable for mine drainage, industrial water supply, high-rise building water transfer and boiler feed applications.
With flow rates from 3 to 350 m³/h and heads from 20 to 300 m, the pump can be configured with the appropriate number of stages to match project-specific hydraulic requirements. Standard construction features cast iron pump casing and bronze impellers; stainless steel wetted parts and wear-resistant options are available for corrosive or abrasive water conditions.
Each pump is performance tested before shipment, and technical documentation, dimensional drawings and selection support can be provided for project evaluation.
Technical Advantages
High-Head Segmental Design
Multi-stage segmental construction allows the number of impellers to be adjusted freely, delivering heads up to 300 m with stable, non-pulsating discharge pressure suitable for long-distance and high-elevation water transfer.
High-Efficiency Hydraulic Model
Precision-cast impellers and optimized flow passages achieve pump efficiency up to 78%, reducing power consumption and long-term operating costs compared with single-stage alternatives.
Smooth & Low-Vibration Operation
Rotating components are dynamically balanced to G6.3 grade, paired with heavy-duty grease-lubricated bearings, ensuring vibration velocity below 2.8 mm/s and extending bearing service life to over 20,000 hours.
Wear-Resistant & Easy Maintenance
Renewable wearing rings and shaft sleeves protect the pump casing and shaft from abrasion; the back-pull-out design allows rotor inspection and replacement without disconnecting suction and discharge piping.
Reliable Shaft Sealing
Standard mechanical seal with silicon carbide faces provides zero-leakage operation; packing gland sealing is available for high-temperature or abrasive media, with water flush connections for extended seal life.
Flexible Material Configuration
Standard cast iron casing with bronze impellers suits clean water; stainless steel (304/316) and wear-resistant alloy options are available for corrosive or mine water applications, matching diverse project requirements.
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