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QDX6-18-0.75S Stainless Steel Submersible Pump: 304 or 316? — QDX Small Submersible Pumps
QDX Small Submersible Pumps

QDX6-18-0.75S Stainless Steel Submersible Pump: 304 or 316?

Model: QDX6-18-0.75S

QDX6-18-0.75S: 6 m³/h at 18 m, 0.75 kW, 220 V, 40 mm outlet. Which stainless grade to order for your water.

Specifications
Flow Rate6m³/h
Head18m
Power0.75kW
Inlet / Outlet Diameter40mm
MaterialStainless steel 304 / 316
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Product Overview

QDX6-18-0.75S delivers 6 m³/h at 18 m head through a 40 mm outlet, on 0.75 kW and 220 V. The hydraulics are fixed. The choice you do have to make is the stainless grade.

Grade pH range of the liquid Typical choice for
304 4 to 10 Fresh water, rainwater, most process water
316 2 to 13 Seawater, brine, aquaculture with salt, mild acids and alkalis

If you are unsure, tell us what the water is. A water analysis helps, and so does a plain description such as “seawater for a fish farm” or “rinse water with cleaning chemicals”. We would rather supply 316 when it is needed than see a 304 pump fail early.

Both grades share the same seals (fluororubber double mechanical seal and O-rings) and the same Class F motor with thermal protection. For stronger chemicals we can fit a PTFE mechanical seal and corrosion-resistant cable to order.

Limits that apply to both: up to 60 °C, up to 5 m deep, and solids no larger than 0.2 mm.

Typical Applications

  • aquaculture
  • seawater and brine
  • food and beverage plants
  • building drainage

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