C E N T R I F U G A L P U M P S

INNOVATIVEDYNAMICALLY SEALED

PUMPS SINCE 1919

Model ABProcess Pump

1933 Model ASlurry Pump

1918

A9Process Pump

2011

EMW™Slurry Pump

2013

Kpro®

Slurry Pump2011

®

A7Process

Pump

S3Acid Slurry

Pump

HDSlurryPump

ESAcid Slurry

Pump

AGProcess

Pump

KSlurryPump

AFProcess

Pump

ACProcess

Pump

CSlurryPump

1

Wilfley is the world’s dynamic seal expert

Wilfley invented the expeller almost a century ago and has continued to lead the advancements in hydrodynamic

sealing technology ever since.

gfghfffffffThe combination of the Wilfley Dynamic Seal and state-of-the-art static seals creates the complete sealing solution

for the toughest pumping applications.

Wilfley dynamic sealin actual operation

2

Wilfley Process Pumps

Wilfley Slurry Pumps

• A superior alternative to mechanical seals and associated flush systems

• Operational abuse tolerant, e.g. cavitation and vibration

• Dry running capability

• Product dilution is eliminated

• Increases production by reducing down time

• Excellent solids/slurry handling capabilities

• Inherently safe without gland packing or frictional heat

How the Wilfley Dynamic Seal works:

• An air barrier (A) is established during pump operation by centrifugal forces generated by the expeller

• This air barrier successfully isolates the pumped fluid from the shaft

• A variety of proprietary static seals provide sealing at pump startup and shutdown

Benefits of dynamic sealing technologyDischarge

Suction

Impe

ller

Expe

ller

A

Discharge

SuctionA

Expeller

Impeller

3

CAPACITY (M3/HR)

CAPACITY (USGPM)10 10,000100 1,000

10 100 1,000250

70

200

100

50

150

0

60

40

50

20

10

30

TOTA

L D

YN

AM

IC H

EA

D (F

T)

TOTA

L D

YN

AM

IC H

EA

D (M

)K / Kpro® Slurry Pump

CAPACITY (M3/HR)

CAPACITY (USGPM)10 10,000100 1,000

10 100 1,000800

0

600

400

200

240

200

160

120

80

40

TOTA

L D

YN

AM

IC H

EA

D (F

T)

TOTA

L D

YN

AM

IC H

EA

D (M

)S3 Acid Slurry Pump

A7 / A9 Process Pump

CAPACITY (M3/HR)

CAPACITY (USGPM)10 10,000100 1,000

10 100 1,000350

0

300

250

200

150

100

50

100

90

80

70

60

50

40

30

20

10

TOTA

L D

YN

AM

IC H

EA

D (F

T)

TOTA

L D

YN

AM

IC H

EA

D (M

)

4

CAPACITY (M3/HR)

CAPACITY (USGPM)10 10,000100 1,000

10 100 1,000300

80

200

100

0

60

40

20

25070

90

50

15050

10

30

TOTA

L D

YN

AM

IC H

EA

D (F

T)

TOTA

L D

YN

AM

IC H

EA

D (M

)

EMW™ Slurry Pump

CAPACITY (M3/HR)

CAPACITY (USGPM)10 10,000100 1,000

10 100 1,000300

80

200

100

0

60

40

20

25070

90

50

15050

10

30

TOTA

L D

YN

AM

IC H

EA

D (F

T)

TOTA

L D

YN

AM

IC H

EA

D (M

)A7 / A9 EMW™ K / Kpro® HD S3

MaxParticle Size

0.5”(13mm)

3”(75mm)

1”(25mm)

1”(25mm)

0.5”(13mm)

MaxWorkingPressure

350 Psig(24 Bar)

205 Psig(14 Bar)

100 Psig(7 Bar)

130 Psig(9 Bar)

290 Psig(20 Bar)

MaxTemperature

400°F(205°C)

250°F(120°C)

200°F(93°C)

200°F(93°C)

250°F(120°C)

Material Options

Duplex Stainless SteelsAustenic Stainless Steels

Nickel AlloysHigh-Chrome Hard Irons

High-Chrome Hard IronsElastomer Lined Ductile Iron

Duplex Stainless SteelsHigh-Chrome Hard Irons

Elastomer Lined Ductile IronHigh-Chrome Hard Irons Duplex Stainless Steels

High-Chrome Hard Irons

SealOptions

DryLock® I Static SealDryLock® II Static Seal

PackingMechanical Seal

Expeller with PackingPacking

Mechanical Seal

Check Valve Static SealPacking Diaphragm Static Seal DryLock® I Static Seal

Mechanical Seal

HD Slurry Pump

5

DryLock® II Static Seal(Available in A7 and A9 Process Pumps)

Check Valve Static Seal(available in K and Kpro® Slurry Pumps)

How the Check Valve Static Seal works:

• Weights centrifugally move outward as the pump starts up

• Weights push actuator plate and diaphragm away from stationary seal

• Spring forces seal components to close as pump shuts down

How the DryLock® II Static Sealworks:

• Balls centrifugally move outward as the pump starts up

• Balls push actuator plate to open seal components

• Isolated spring forces seal components to close as pump shuts down

State-of-the-art Static SealsWilfley pumps are truly dynamically sealed, preventing any leakage while running. At the same time, the static seal’s faces are completely open and non-contacting. When the pump stops, the static seal engages and closes the seal faces.

This simple concept creates a sealing solution that can withstand many un-favorable operating conditions, includ-ing cavitation. Wilfley is continuously improving its static seal capabilities.

6

Wilfley knows metallurgy

Wilfley and its wholly owned subsidiary, Western Foundries, provide new metals and proprietary processes for the

longest possible pump and parts life and reliability.

We are your one source supplier for all of your pumping, sealing, and metallurgical needs.

EVERY PUMP MATTERS

Some of Wilfley’s most recent innovations include:

MAXALLOY® 5A - a machinable 27% chrome hard iron with an avarage hardness of 740 HBN

Alloy C Max - better corrosion resistance than CW2M

WCD4™ - better corrosion / erosion resistance than conventional CD4MCuN

General Capabilities Bulletin 1.0 (en) Printed in USA • September 2013 • © A.R. Wilfley and Sons, Inc.

Worldwide local relationships...

A.R. Wilfley and Sons, Inc.

7350 E. Progress Place, Suite #200Englewood, CO 80111, USA

Toll Free (US) 1-800-525-9930

Telephone +1 (303) 779-1777

Fax +1 (303) 779-1277

www.wilfley.com

pumps@wilfley.com

®