s3 tech book

8/12/2019 s3 Tech Book

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A.R. Wilfley & Sons, Inc.

P.O. Box 2330

Denver, Colorado USA

80201

(303) 779-1777

Fax (303) 779-1277

Email: [email protected]

Website: www.wilfley.com

S3TO2AC


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Wilfley

M o d e l S 3

Technical Handbook


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Wilfley Model S3 Chemical Slurry Pumps

Wilfley hydraulic seal in actual operation.

The combined corrosive and abrasive

action of many of todays modernprocesses have required compromisesfrom traditional pumps. Slurry pumpshave generally been too heavy indesign and uncompromising for alloyconstruction. Acid pump designs havebeen too light for some of the robustapplications. A clear need for an alter-nate choice was the reason for the birthof the Wilfley S3.

T his unique Wilfley S3 was designedspecifically for corrosive/slurry applica-tions. The pumps have a strong, solidpower frame that can withstand highheads, speeds and specific gravities.It can be upgraded for extreme duties.

The pump s hydraulic parts are designed

to be made of a wide range of materials.The pump designs are flexible enoughto customize pumps for specific services.

C learly, the most outstanding featureof the S3 is the Expeller/DryLockt seal

combination. T he Expeller has been ahallmark of Wilfley pumps since 1919.Wilfley invented it and has perfected itsoperation during the last 80 years.

The Expeller seals the pump while running.The DryLockt is an adaptation of theseal that has made Wilfleys A7 ANSIchemical pump a leader in corrosive

fluid handling. T he repeatable andpredictable smooth action of the sealensures leak free startups and stops.


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Discharge

Pump Running/Seal Open

Pump Off/Seal Closed

Impeller

Expeller

Suction

The DryLockt has been modified tothrive in the most aggressive slurries.There is no rubbing contact while thepump is running and no need for

cooling flushes. However, multipleflush ports are available to clear anycaking materials.

Wilfley free engineering service matchesthe pump to your specific application.Systems will be analyzed to ensureleak free, efficient and reliable pumpoperation. Each pump is tested before

leaving our plant. It is through thisthorough preparation that we canguarantee the operation of Wilfleypumps to your complete satisfaction.

Wilfleys application and engineeringstaff continue to provide the most upto date information and innovative tech-nology on pumps and pump processesto customers and the world. T he S3

joins Wilfleys line of slurry and acid

pumps to provide coverage of yourcentrifugal pump needs.

T o contact the Wilfley office or agent

nearest you, please contact A.R Wilfley& Sons directly.

P .O . Box 2330Denver, C O 80201 US A1-800-525-9930or 303-779-1777fax 303- 779-1277www.wilfley.com

Impeller pumpsliquid from suctionto discharge.

Expeller creates

pressure keepingliquid from shaft.


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Wilfley Model S3 Features and Benefits

Extra w all thickness extends w ea r

life (1/4 c orrosion a llow anc e vs .

1/8 w ith sta nd a rd ANSI/AS ME).

The large c losed impellervane s

provide highly e fficient p umping

and long we ar life. The front pump

out vanes reduce circulation.

The Dryloc k sea l is a mod ular

ca rtridg e des ign, simplifying ma in-

tenance. Slurry performance has

been improved by adding Wilfleys

new, pa tented B arrier Ring.

Optional expe ller drain and

ca sing drain (not show n)

ava ilab le for both o perational

and s afety purpose.

The Wilfley e xpe ller is a no n-co nta c ting

hydrodyna mic s ea l that provides long,

trouble free life minimizing operating c os ts

and d owntime.

Shaft sleeve

available in

a w ide va riety

of materialsfor corrosion

resistance.

Expeller performance has

been enhanced by a dding

fixed rad ial vanes on the

ca se plate which serve as

self flushing vortex breakers.


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Corrosion resistant non-metallic labyrinth oil

seals isolate the bearings from contamination,

improving life. Other seals are available.

Heavier sha ft and short overhang result

in low L3/D4 ratio for minimum d yna mic

deflection under heavy loa ds .

Be arings are d esigned for long life under

heavy loads. Optional Extreme Duty

Bearings available to expand operating

range and /or to increa se L10 life.

Large oil sump c apa city provides

maximum cooling a nd room for

hea ting/co oling co ils.

rame foot eases handling

uring ma intenance .

A wide rang e o f materials a re availab le.

Gua rds (not s how n) isolate all moving parts.


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Wilfley DryLock Seal

Labyrinth Seal(Standard)

Pump Running/Seal Open

Pump Off/Seal Closed

Lube Seal(Option)

Symmetrica l mechanism

provides smooth repeatable

and predicta ble ac tivation.

Optional expeller drain.

P ositive sea l at

shutdown tightenswith pressure.

Fric tion free B a rrier Ring

isolates c ontaminates

from sliding mechanisms.

Multiple rotary and

stat ionary sea l

materials available.

Modular cartridge

design provides simple

replac eab le pa rts.

Sha ft sleeve design

for maximum shaft

protection.

Isolated spring for

crisp s eal ac tion.

Se al ac tivation can ea sily be

changed to open and close

at different spe eds simply b y

ad ding o r subtrac ting b alls.

Optiona l Flush/Lube P orts


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Wilfley Model S3 Features and Benefits

DryLock

The DryLock uses the action ofcentrifugal force combined with thesmooth actuation of bearing balls toopen and close the seal. As the pumpstarts up, the expeller evacuates theliquid in the seal area. T he balls of theDryLock are forced outward andslide up a ramp in the ball housing.

The ramp forces the balls against theactuator plate and opens the sealfaces. Upon shut-down, the balls losetheir centrifugal force allowing thespring-loaded actuator plate to moveback into its closed position. The sealis then closed.

Actuator Assembly


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40

30

20

10

0

Head(Meters)

1000 300200 400

Flow (M3/HR)

1 4 5 0 R P M

50

60

6 x 4-16

6 x 4-134 x 3-11

3 x 2-11

200

150

100

50

0

Head(Feet)

5000 15001000 2000

Flow (USGPM)

1 7 5 0 R P M

250

300

6 x 4-16

6 x 4-134 x 3-11

3 x 2-11

= Best Efficiency Point


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200

150

100

50

0

Head(Feet)

Head(Meters)

5000 15001000 2000

Flow (USGPM)

1140 341227 455

Flow (M3/Hr)

V A R I A B L E S P E E D

300

250

350

61

46

30

15

0

91

76

107

6 x 4-16

6 x 4-13

4 x 3-11

3 x 2-11

1900 RPM

2200RPM

2400RPM2400RPM

= Best Efficiency Point


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Dimensions

Dimensions shown are not for construction unless certified.Dimensions are shown in inches.Field shimming by customer may be required to meet dim ensions. B aseplate dimensions are for fabricated steel.

Frame

1

2

Pump Size H HA HB HD HE HF HG HH HK CDHL CPHI HJ X D E

Frame

1

2

Pump Size HA HB HC HE HF HG HH HK CPHI HJ X D E

Direct Drive Motor Mount

Offset Overhead Motor Mount

IEC

Max. MTR. Frame

3x2 - 11 34 35 36 4.25 13 26 4.5 1 5.5 5.5 5 20 33.12 9 10.3 15.7 5.9 326T 365U 200L

4x3 - 11 34 35 36 4.37 13 26 4.5 1 5.5 5.5 5 20 33.12 9 10.3 15.7 5.9 326T 365U 200L

6x4 - 13 41 38 44 6.08 14 30 4.5 1 7.5 7.25 7 25 41.47 10 13.3 19 7.5 365T 405U 250M

6x4 - 16 41 38 44 6.8 14 30 4.5 1 7.5 7.25 7 25 41.47 10 13.3 19 9 365T 405U 250M

3x2 - 11 28 75 32.5 4.25 13 65 4.5 1 5.5 5.5 5 33.12 10.3 15.7 5.9

4x3 - 11 28 75 32.5 4.37 13 65 4.5 1 5.5 5.5 5 33.12 10.3 15.7 5.9

6x4 - 13 30 95 40.5 6.08 14 81 4.5 1 7.5 7.25 7 41.47 13.3 19 7.5

6x4 - 16 30 95 40.5 6.2 14 81 4.5 1 7.5 7.25 7 41.47 13.3 19 9

HD


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X

Bare Pump

Dimensions

Frame

1

2

Pump Size HA HB HC HD HE HF HG HH HKHI HJ HM CP

Dimensions shown are not for construction unless certified.Dimensions are shown in inches.Field shimming by customer may be required to meet dimensions. B aseplate dimensions are for fabricated steel.

EDHL

6x4 - 13 20.75 24.62 9 6.08 6.25 2.75 6 3.5 7.5 .438 16 3.5 .875 41.47 13.3 14.5 7.5

3x2 - 11 14 20 5.88 4.25 5.31 1.97 4.9 3 5.5 .68 13.8 2.8 .688 33.12 10.3 11.2 5.9

4x3 - 11 14 20 5.88 4.37 5.31 1.97 4.9 3 5.5 .68 13.8 2.8 .688 33.12 10.3 11.2 5.9

6x4 - 16 20.75 24.62 9 6.2 6.25 2.75 6 3.5 7.5 .438 16 3.5 .875 41.47 13.3 14.5 7.9


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Model S3 Options and Engineering Specials

Features Options Engineered Specials

Bearings Extreme Duty Bearings

Frame 1 - Inboard -Deep G roove Ball Inboard - Spherical Roller BearingBearing, Single Row

- O utboard - Angular Ball O utboard - Taper Roller Bearing

Bearing Double Row

Frame 2 - Inboard - Cylindrical Roller Inboard - Cylindrical Roller BearingBearing

- O utboard - Angular Ball O utboard - Taper Roller BearingBearing Double Row

O il lubricated bearings G rease, oil mist

Non-metallic labyrinth bearing seal M agnetic and M etallic Bearing Seals

Frame and bearing carrier material: 316SS Corrosion resistant alloysDuctile iron

Frame with large sight glass O il cooling provisions, constanton the right side when viewed level oiler

from coupling end.

O -R ing material: Viton K alrez

Teflon

encapsulated Viton

Aflas

Wet end material: WC D4, 1/2" NPT connection for case drain Special materials

M axalloy 5

Steam jacketsC onnections for gauges

150 lbs. flat faced flanges 300 lbs flat faced flanges150 lbs & 300 lbs raised faced flanges

DryLock

seal Lube seal Packingwith Barrier R ing M echanical sealLabyrinth spacer

Flush connections for seals Flushing and drain hardwareand expeller cavityExpeller cavity drain

Special Modifications

A .R . Wilfley & Sons is dedicated tomanufacturing pumps that maximizetheir full potential. Wilfley routinelyaccommodates customer requestsfor steam jackets, special paint,flush ports, special drain plugs andother modifications required to fit

specific needs.

M any applications require special motorand drive configurations, includingbaseplates and mounting brackets.Fabricated baseplates are standard.

Wilfley engineers assist in any specialconfigurations that the liquid andprocess require. Wilfleys famous high-quality workmanship applies to allspecial designs to customers needs.


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6x4 - 13 6x4 - 16

1000 1100

300

200

0.875

2.125

3

70 (2.756)

4.25

10

14.5

NUP317EC

5316A

NU317ECP

31316ADF

3x2 - 11 4x3 - 11

600 700

300

200

0.75

1.5

2.125

50 (1.9685)

2.835

8.73

10.57

313M

5312A

NU313EC

31312ADF

Construction Details

General

Pump weight (lbs)

M ax. working*temperature (F)

M ax. working

pressure (psi)

M ax. solids size

Shaft

Diameter at

Impeller (in.)

Diameter at

Sleeve (in.)

Diameter at

C oupling in.(mm)

Diameter between

bearings (in.)

Shaft

overhang (in.)

Bearing span (in.)

Bearings

Standard radial

bearing

Standard thrust

bearing

Extreme duty

radial bearing

Extreme duty

thrust bearing

Frame One Frame Two

*M odified seal configurations are available for special pumping conditions up to 400 F.


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Materials

1

1a

3

14

15

17

61

61a

61b

6262a

62b

62c

67

72

72a

72b

73

75

76

79

Wet End

C asing

C ap Screw

G asket, C asing

Impeller

C asing Plate

Expeller

Frame

Breather

Drain Plug

ShaftBearing, Inboard

Bearing, Outboard

Locknut

O il Seal, Inboard

Bearing C arrier

O -ring, Bearing Carrier

Jam Nut

Retaining R ing

C ap Screw

O il Seal, O utboard

Sight G lass

DryLock

M aterial

WCD4

WCD4

18-8

Teflon

WCD4

WCD4

WCD4

DI**

M S

Steel

WMS*Steel

Steel

Steel

Teflon

DI**

Viton

18-8

Steel

18-8

Teflon

18-8

WCD4

M axalloy 5

M axalloy 5

18-8

Teflon

M axalloy 5

M axalloy 5

M axalloy 5

DI**

M S

Steel

WMS*Steel

Steel

Steel

Teflon

DI**

Viton

18-8

Steel

18-8

Teflon

18-8

M axalloy 5

Power End

Seals

Materials

A .R . Wilfley & Sons manufactures S3centrifugal pumps in a variety of mate-

rials including special combinationsof alloys.

Wilfley' s engineering staff has theexpertise and experience to assist inmaterial selections. To help in thisservice, Wilfley maintains an extensivelibrary of pump services and corro-sion/abrasive data. Wilfley is continuallytesting the effects of both abrasionand corrosion on a wide variety ofmaterials as well as actively developingnew ones.

Wilfleys in-house metallurgicaldepartment has developed uniquematerials to survive in the most hostileenvironments. These proprietary mate-rials were developed to extend the wearlife of parts in extreme corrosive andabrasive conditions.

C D4M C u and M axalloy 5 arecommonly used alloys. Wilfleysfoundry and metallurgical staff havedeveloped proprietary processesenhancing these alloys for improvedpump performance.

WCD4

TM

T his derivative of C D4M C U providesoutstanding corrosion resistance and anincreased hardness to 320 350 Brinell.

Maxalloy 5TM

T his is a machinable 27% C hromeAlloy Wilfley has developed withexceptional corrosion resistance andhardness over 600 Brinell.

P lease consult Wilfley directly for anyspecial alloy combination requirements.

* WM S hardened steel

** DI ductile iron

ItemNumber

Item

Name


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General Installation Recommendations

Choosing Pump Location

Locate the pump as close to the liquidsource as practical so the suction pipe

is short and direct with a minimum ofelbows, fittings and valves.

Place the pump in a location so the unit isaccessible for inspection during operationas well as for maintenance operationsinvolving removal and disassembly.

Foundation

The foundation should be strong enoughto absorb any vibration and to form apermanent support for the baseplate.T his is important in maintaining thealignment of the direct connected unit.

Foundation bolts of the proper sizeshould be embedded in the concretelocated by the outline drawing.

Alignment

T he pump and motor are aligned atthe factory before shipment. H owever,realignment is necessary after thecomplete unit has been installed.

G uidelines for checking and aligningthe pump components may be foundin the Hydraulic Institute Standards.

Piping

Both suction and discharge pipesshould be supported independently

near the pump so when the flangebolts are tightened no strain will betransmitted to the casing.

A check valve should be be installedin the discharge line to prevent fluidfrom flowing back through the pumpwhile it is shut down. G ate valvesshould be installed in both dischargeand suction lines to isolate the pumpduring maintenance.

Care must be taken in sizing and locatingsuction piping to prevent cavitation.

Ordering InformationWilfley pumps are engineered to operatein compliance with your specifications.C areful evaluation of pumping conditionsis needed to provide accurate pumprecommendations and quotations.

T his list will help establish specificpumping system conditions.

Liquid

Temperature

Static Head

Discharge P ipe Size

Length, D ischarge P ipe

D ischarge P ipe Fittings

Equivalent Length Discharge Pipe

Total Head

M aximum S uction Pressure

M inimum Suction P ressure

C apacity

Specific G ravity

% Solids by Weight

M esh Analysis

Viscosity

NP SH Available

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