ZW Self-Priming Sewage Pump

ZW40-15-30 Self-Priming Sewage Pump: Checklist Before Ordering

Name: ZW40-15-30 Self-Priming Sewage Pump: Checklist Before Ordering
Brand: Haquan
SKU: ZW40-15-30

Model: ZW40-15-30

ZW40-15-30: 15 m³/h at 30 m, 3 kW, DN40/DN32. Six points to confirm before you order a ZW self-priming pump.

Specifications

Flow Rate	15m³/h
Head	30m
Power	3kW
Inlet / Outlet Diameter	40 / 32mm
Material	Cast iron (standard); stainless steel on request

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Product Overview

ZW40-15-30 pumps 15 m³/h to 30 m on a 3 kW motor. Before you order it, or any ZW pump, run through these points with us.

Lowest liquid level. It must stay within the self-priming height, 5.5 m for this model, measured to the pump.
Suction pipe length. No more than 10 m, airtight, without high points that trap air.
Total head. Lift plus pipe losses. Over 30 m means a bigger model.
Liquid. Up to 80 °C as standard (higher on special order), density up to 1240 kg/m³. pH 6 to 9 for cast iron, 2 to 13 for stainless steel.
Solids and fibres. Solids up to about 60 % of the port size, fibres up to five times the port size.
Power and area. Voltage and frequency, and whether the site needs an explosion-proof motor (B suffix).

Send us those six answers and we will confirm the model or suggest a better one.

Technical data

Item	ZW40-15-30
Flow	15 m³/h
Head	30 m
Motor power	3 kW
Speed	2900 r/min
Efficiency	48 %
NPSHr	2.5 m
Self-priming height	5.5 m
Self-priming time	3 min per 5 m
Suction / discharge	DN40 / DN32
Weight	120 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.