D DG Multistage Pump
D & DG are horizontal segmental single-suction multistage centrifugal pumps for clean water (impurity ≤1%, particle ≤0.1mm) and analogous liquids. Max medium temp: D ≤80℃, standard DG ≤105℃, customized DG ≤120℃. Standard D has horizontal suction & vertical upward discharge; oilfield-type D and all DG feature vertical upward inlet & outlet. Fitted with packing seal: D uses internal pump fluid for seal water while DG adopts external water supply, driven by motor via elastic coupling.
Product details
Product Features
1.Compact segmental construction for easy disassembly and maintenance;
2.Fully sealed anti-rust shaft avoids medium corrosion;
3.Optional packing/mechanical seal, stable performance & easy servicing;
4.Optimized hydraulic design: high efficiency, wide performance range, low noise;
5.Custom material available for corrosive oilfield water injection.
Main Application
· D type (≤80℃): mine drainage, industrial & municipal water supply, oilfield water injection;
· DG type (std≤105℃ / custom≤120℃): medium & small boiler feedwater, clean hot water transfer.
Model Designation
For example:
Model: D (DG)155-67*9
D-Multistage centrifugal water pump
DG-Multistage boiler feed pump
155-Flow (m³/h)
67-Single-stage head (m)
9-Number of stages
D Multistage Pump Structure Diagram

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