A9 Low-Flow
Chemical Pump

Wilfley A9 Low-Flow High-Head Chemical Pump Pumps

The A9 Low-Flow chemical pump has been specifically designed for low-flow high-head applications

Features and Benefits

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Sealing Options

The A9 Low-Flow chemical pump comes standard with the Wilfley dynamic expeller and the latest DryLock® static sealing technology

SolidLock® static sealing technology is also available

Conventional sealing systems like mechanical seals and compression packing are also available

Low-Flow (Barske) Impeller

Wilfley A9 Chemical Pump Pumps Low-Flow Barske Impeller

Precision cast Barske-type impeller design generates high pressure at relatively low flows for low specific speed applications. The open shroud, radial vane design also lowers radial loads for extended bearing life.

Standard Materials of Construction

Duplex Stainless Steels



Austenitic Stainless Steels




Nickel Alloys

Alloy 20

Alloy B

Alloy C

Alloy C Max

Alloy G


Flows up to 110 usgpm (25 m3/h)
Heads up to 660 ft (201 m)

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Mark ScottA9 Low-Flow Chemical Pump