ZW Self-Priming Sewage Pump

ZW65-25-40 Self-Priming Sewage Pump, 40 m Head

Name: ZW65-25-40 Self-Priming Sewage Pump, 40 m Head
Brand: Haquan
SKU: ZW65-25-40

Model: ZW65-25-40

ZW65-25-40: 25 m³/h at 40 m, 7.5 kW, DN65. The same duty as ZW80-25-40, and how to choose between the two.

Specifications

Flow Rate	25m³/h
Head	40m
Power	7.5kW
Inlet / Outlet Diameter	65 / 65mm
Material	Cast iron (standard); stainless steel on request

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Product Overview

ZW65-25-40 pushes 25 m³/h to 40 m on a 7.5 kW, 2900 r/min motor. It is one of the higher-head pumps in the ZW range, and it has a twin.

Model	Flow (m³/h)	Head (m)	Power (kW)	Speed (r/min)	Inlet / outlet (mm)
ZW65-25-40	25	40	7.5	2900	65 / 65
ZW80-25-40	25	40	7.5	2900	80 / 65

Both share the 1230 mm base, the 200 kg weight and a 2-minute priming time per 5 m. The only real difference is the suction: DN65 here, DN80 on ZW80-25-40. Choose by your suction pipe, or take the DN80 version if the liquid carries larger solids.

Make sure 40 m is really needed. If the total head is nearer 30 m, ZW65-25-30 does the same flow on 5.5 kW.

If neither DN65 nor DN80 suits your suction pipe, tell us the size you have. The ports can be customised.

Technical data

Item	ZW65-25-40
Flow	25 m³/h
Head	40 m
Motor power	7.5 kW
Speed	2900 r/min
Efficiency	50 %
NPSHr	3.0 m
Self-priming height	5.5 m
Self-priming time	2 min per 5 m
Suction / discharge	DN65 / DN65
Weight	200 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.