Manufacturer of water centrifugal pumps to ANSI ISO and EN733 standardsDocumentation[email protected]
Flowsteer Pumps logo
Machining bay with overhead gantry cranes and machined castings laid out on the floor
About Flowsteer

A Pump Manufacturer That Publishes What It Knows

Flowsteer Pumps is a manufacturer of water centrifugal pumps, supplying end-suction and vertical pumps built to the American, international and European dimensional standards.

Flowsteer describes itself as a professional supplier of water centrifugal pumps, specialising in centrifugal pumps for water application. That is a narrow description, and the range reflects it: five horizontal series and one vertical series, all built around water and waste water duties rather than spread across unrelated product lines.

The range spans DN 25 to DN 400, flow to 1100 m3/h and head to 152 m, with drive ratings to 200 kW and working pressures to 1.6 MPa. Nine wetted materials are published across the series, from grey cast iron through bronze and stainless steel to polypropylene, polyethylene and UHMW-PE.

What ties the range together is standards. The CN series is built to ANSI/ASME B73.1, the CI and KCP series to ISO 2858 with the ISO 5199 engineering class, and the FA series to BS EN733 and DIN24255. A plant standardising its pump population can do so without changing supplier when the standard changes.

What We Build

Six product series covering the water duties that most plants actually have: municipal supply and distribution, waste water and effluent, fire protection, irrigation, HVAC circulation and general industrial transfer.

Five of the six use back pull-out construction, which means the rotating assembly withdraws from the casing with the suction and discharge pipework left bolted in place. On the ANSI CN series that follows from B73.1 itself; on the ISO CI, KCP, FA and VNP series it is stated in the datasheet.

The sixth axis of the range is material. The metal series cover clean, treated and mildly aggressive water; the lined KCP and VNP series cover water whose chemistry would attack metal wetted parts.

How We Publish Specifications

Every specification on this site is traceable to the Flowsteer product catalogue. Where a figure is published — the FA series operating envelope, the KCP drive rating, the VNP solids limit — it appears as published.

Where a figure is not published, the specification table says TBC rather than carrying an estimate borrowed from a neighbouring series. The DE series head and materials, and the VNP capacity and head, are the main examples.

The same applies to certifications, production capacity, export markets and company history. The Flowsteer catalogue does not publish them, so this site does not state them. Ask and we will confirm in writing what can be evidenced.

How the Company Is Run

Flowsteer states that its development is guided by four things: attention to the requirements, recommendations and customers' claims; analysis of customer satisfaction; constant checks of the effectiveness of the operational processes; and continuous training of the personnel in cutting-edge technological innovations.

Those are the company's own words, and they are reproduced here rather than rewritten, because they are the published statement of how the business is directed.

Who We Supply

Municipal water utilities and treatment works, where the dimensional standard in the specification is usually the deciding factor.

Industrial sites consolidating a mixed pump population onto fewer series.

Building services and fire protection contractors working to EN733 layouts.

Irrigation schemes moving volume at moderate head.

Distributors and EPC contractors supplying any of the above.

The Range in Numbers

What Is Published and What Is Not

These figures come from Flowsteer product datasheets. Company history, production capacity, certifications and export markets are not published, so they do not appear here.

5pump seriesANSI CN, ISO CI, KCP, DE and FA horizontal pumps plus the VNP vertical sump pump
DN 25 - DN 400size bandThe DE series alone spans DN 25 to DN 400; the ANSI CN runs 1 in to 10 in
1100 m3/hmaximum published flowFA series, 2 to 1100 m3/h across DN32 to DN250
152 mmaximum published headFA series, 2 to 152 m
200 kWmaximum published drive ratingKCP series
1.6 MPamaximum working pressureFA series, 1.2 MPa standard and 1.6 MPa on request
105 Cmaximum published temperatureFA series, -10 C to 105 C
20 %maximum published solids contentVNP vertical sump pump
4dimensional standards built toANSI/ASME B73.1, ISO 2858 with ISO 5199, BS EN733 / DIN24255
9wetted materials publishedCast iron, ductile iron, carbon steel, bronze, SS304, SS316, PP, PE, UHMW-PE
Where Pumps Are Made

Machining Assembly and Test

Machining bay with overhead gantry cranes and machined castings laid out on the floor
The machining bay, with gantry crane coverage across the full length rather than at fixed stations.
Partly assembled centrifugal pumps lined up on the assembly floor
The assembly floor. Back pull-out construction means the rotating assembly is built as a unit before it meets the casing.
The Range

Six Series Built Around Water

Questions

About Flowsteer FAQ

Where can I see your factory?

The factory tour page on this site carries photographs of the machining bay, the parts warehouse, the assembly and test area and the packing floor, all taken from the Flowsteer site.

Do you hold ISO 9001 or other certifications?

The Flowsteer catalogue does not publish certification documents, so we do not claim any on this site. Tell us what your project requires and we will confirm in writing what can be evidenced.

How long has Flowsteer been manufacturing pumps?

The founding year is not published in the source catalogue, so we mark it TBC rather than estimate it.

Which countries do you export to?

Export markets are not published in the source catalogue. We would rather leave that unstated than print a number we cannot support.

Start With the Duty Point

Everything else follows from it: the series, the size, the material and the price.