Wilfley A9 Low-Flow Chemical Centrifugal Pump


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




Features and Benefits

The A9 Low-Flow Schematic

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

SolidLock Slurry Static Seal & Dynamic Expeller

Wilfley Heavy Duty Centrifugal Pumps DryLock Chemical Static Seal

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

Low-Flow (Barske) Impeller

The A9 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: WCD4™ CD4MCuN
Austenitic Stainless Steels: 304L 316L 904L
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)

The A9 Low-Flow Diagram