ZW Self-Priming Sewage Pump

ZW32-5-20 Self-Priming Sewage Pump: Reading the Model Name

Name: ZW32-5-20 Self-Priming Sewage Pump: Reading the Model Name
Brand: Haquan
SKU: ZW32-5-20

Model: ZW32-5-20

ZW32-5-20: 5 m³/h at 20 m, 2.2 kW, DN32. What each part of a ZW model name means, including the P and B suffixes.

Specifications

Flow Rate	5m³/h
Head	20m
Power	2.2kW
Inlet / Outlet Diameter	32 / 32mm
Material	Cast iron (standard); stainless steel on request

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Product Overview

ZW32-5-20 gives 5 m³/h at 20 m head on 2.2 kW. It is the lowest-flow model in the range, for duties where the liquid has to be lifted a fair way but the volume is small.

How to read the name

Our catalogue writes the model two ways, ZW32-5-20 and 32ZW5-20. Both mean the same pump:

32: suction (inlet) diameter in mm
ZW: self-priming non-clog sewage pump
5: rated flow in m³/h
20: rated head in m
P (optional): stainless steel construction; without it the pump is cast iron
B (optional): explosion-proof motor; without it the motor is standard

So 32ZW5-20PB would be this pump in stainless steel with an explosion-proof motor. When you send an enquiry, the full name is enough for us to know exactly what you need.

Technical data

Item	ZW32-5-20
Flow	5 m³/h
Head	20 m
Motor power	2.2 kW
Speed	2900 r/min
Efficiency	45 %
NPSHr	2.5 m
Self-priming height	5.5 m
Self-priming time	3 min per 5 m
Suction / discharge	DN32 / DN32
Weight	100 kg

Installation dimensions (mm)

The pump, coupling and motor are mounted on a common base. L is the overall length; L1 to L4 are base lengths; a and f locate the outlet; B1 and B2 are the base widths; H is the shaft centre height; h1 and h2 are the heights of the suction and discharge flanges; h3 is the base thickness.