Wilfley A9 Vortex Recessed Chemical Centrifugal Pump




The A9 heavy duty chemical pump is Wilfley’s latest offering
in ANSI/ASME chemical pumps

Features and Benefits

Designed to meet and exceed the B73.1 standard

Heavy duty wet end
Robust shaft design with lower L3/D4 stiffness ratios and lower deflections
Longer L10 bearing life
Higher grade of impeller balance (G2.5 vs the standard G6.3)
Higher grade of performance testing (1U vs the standard 2B)

Sealing Options

The A9 heavy duty chemical pump comes standard with the Wilfley dynamic expeller and the latest DryLock® static sealing technology
SolidLock® static sealing technology is also available for pumping applications that contain solids


SolidLock Slurry Static Seal & Dynamic Expeller

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

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 7,100 usgpm (1,613 m3/h)
Heads up to 735 ft (224 m)

A9 ANSI Diagram