
ANSI Water Centrifugal Pump | CN Series
Pump is for water application
- Size 1″ – 10″
- Capacity Q max 400 m³/h
- Design and Manufactured Standard ANSI/ASME B73.1
Flowsteer Pumps is a professional and leading manufacturer, specializing in Centrifugal Pump for water application — end suction, vertical sump and complete pump sets for water supply, treatment, fire fighting, irrigation and cooling.
Horizontal end suction, vertical sump and complete water pump sets built to ANSI ISO and DIN dimensional standards.
Water and waste water treatment, city water supply, fire protection, HVAC, irrigation and cooling projects worldwide.
A standardised pump that drops onto the existing base and pipework, so a replacement does not become a rebuild.
Standardised, fully interchangeable hydraulics with a back pull out layout and a short, common spare parts list.
Each range is built to a published dimensional standard, so the pump you order matches the envelope your plant already has.

End suction water pumps built to the ANSI/ASME B73.1 dimensional standard with ANSI B16.5 flanges.

ISO 2858 and ISO 5199 back pull out water pumps in cast iron and stainless steel plus the KCP thermoplastic series.

The DE process pump range for water and waste water transfer up to DN 400 and 600 m³/h.

FA series end suction pumps to BS EN 733 and DIN 24255 for supply fire fighting irrigation and cooling.

VNP vertical sump pumps in PP for wet pit installation in water and waste water applications.
Six series covering DN 25 to DN 400, flow from 2 to 1100 m³/h and head up to 152 m in cast iron, ductile iron, carbon steel, stainless steel, bronze and thermoplastic.

Pump is for water application

Material: Cast Iron, Carbon Steel, SS304

Horizontal single-stage, back-pull-out, PP / PE / UHMW-PE

Size DN 25-400 mm, Flow Q ≤ 600 m³/h

Flow 2-1100 m³/h, Head 2-152 m, BS EN733 / DIN24255

Vertical sump pump for water and waste water. Pump material is PP.
The dimensional standard decides whether a pump bolts straight onto the existing foundation. These are the four families we build to.
Fixes the mounting feet, shaft extension and nozzle positions for each frame size. The CN series follows it, with ANSI B16.5 150LB and 300LB flanges.
ISO 2858 sets the dimensions and ISO 5199 the technical requirements. The CI series follows both and is fully interchangeable with other brands.
The European end suction standard rated to 10 bar. The FA series follows it, with DIN 2501 flanges as standard.
The VNP series uses an ISO 2858 back pull out hydraulic end on a vertical wet installed column in PP.
Casings and impellers are machined in house under overhead travelling cranes, staged through the parts store and assembled into complete sets. Finished pumps are coupled up on the test bench with suction and discharge lines connected before they leave.


Flow, head, liquid, temperature and the frequency of the supply.
The series and size are picked against the standard the plant runs on.
Casing, impeller, shaft and seal are specified for the liquid.
The set is assembled, aligned on its baseplate and run on the test bench.
The complete set is packed and shipped with its documentation.
Flowsteerpumps is a professional supplier of water centrifugal pumps in the world. Our development is guided by attention to the requirements, recommendations and customers’ claims, by analysis of customer satisfaction, by constant checks of the effectiveness of the operational processes and by continuous training of the personnel in cutting-edge technological innovations.
These are the main cardinal points which guide the company in defining its strategic objectives.

ANSI/ASME B73.1 for the CN series, ISO 2858 and ISO 5199 for the CI series, BS EN 733 / DIN 24255 for the FA series, and ISO 2858 back pull out practice on the VNP vertical sump pump.
The FA series runs from 2 to 1100 m³/h with head from 2 to 152 m. The DE series covers DN 25 to DN 400 with flow up to 600 m³/h.
Yes. SS304 and SS316 are available on the CI series, SS304 on the CN series, stainless steel options on the FA series, and PP, PE or UHMW-PE on the KCP and VNP series.
The FA and DE series are described as complete sets. The KCP series is offered on a welded base frame or a cast iron base plate.
If the existing pump is built to the same standard, yes. That is the purpose of ANSI/ASME B73.1, ISO 2858 and EN 733 — they fix the mounting and nozzle dimensions so pumps of the same size exchange.
Send the duty point — flow, head, liquid, temperature and supply frequency — by email and we will come back with the series and size.
Flow, head, liquid, temperature and supply frequency are enough for us to select the right series and size.
Real product and factory photographs used on this microsite. No stock fillers — images come from the supplier package or the customer domain.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.

Factory photograph from the Water Centrifugal Pump Manufacturer catalog.
Water Centrifugal Pump Manufacturer supports sourcing programs with repeatable production, export packing, and clear communication for overseas buyers.

This weisourcing microsite is a compact buyer-facing overview: products, factory context, and a direct contact path.
Homepage sections highlight the lines the factory actually sells.
Gallery frames use customer product photos already in the package.
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