TECHNICAL HANDBOOK ASME B3. Process Pump A Wilfley Sealing Technology No Flush Water Required
WILFLEY SEALING TECHNOLOGY Wilfley invented the Dynamic Expeller Seal almost a century ago and has continued to lead advancements in pump sealing technologies ever since. The combination of the Wilfley Dynamic Expeller Seal (pump running) and the DryLock 3 Static Seal (pump off) provides leak free operation at all times. The harmony between the dynamic and static seal is what makes Wilfley Sealing Technology excel beyond conventional seals. AB 33 AC 3 Af 4 Ag 3 A
WILFLEY dynamic expeller seal Discharge FEATURES & BENEFITS: A superior alternative to mechanical seals and associated flush systems Inherently safe without gland packing or frictional heat Product dilution is eliminated Operational abuse tolerant, e.g. cavitation and vibration A Reduces maintenance costs and maximizes production time through increased mean time between maintenance (MTBM) Suction Pump Running Pump Off Excellent solids handling capabilities Intermittent dry running capability HOW THE WILFLEY DYNAMIC EXPELLER SEAL WORKS: A liquid interface (A) is established during pump operation by centrifugal forces generated by the expeller This liquid interface effectively isolates the pumped fluid from the shaft The DryLock 3 static seal prevents any leakage when the pump isn't in operation Impeller Expeller 2
wilfley drylock 3 STATIC seal HOW THE DRYLOCK 3 SEAL WORKS: At start up, the expeller (A) establishes a liquid interface that pulls the pumped fluid away from the seal faces. As this happens, centrifugal force moves balls (B) outwards to open seal faces (C) and prevents any rubbing contact. At shut down, the liquid interface collapses and the pumped fluid is pushed towards the seal faces. An isolated wave spring (D) forces the seal faces to close before any of the pump fluid can escape. A B C D Pump Running / Seal Open Pump Off / Seal Closed FEATURES & BENEFITS: Leak free operation - Small precise seal opening allows for rapid seal actuation Reliable and repeatable static seal actuation - The quantity of balls is specifically set for your application Easy to install / maintain - Simple and effective design, no special tools needed 3
model A sealing options DryLock 3 with Grease Vapor Barrier Expeller with Diaphragm Expeller with Packing Single / Double Mechanical Seals The A process pump can also be fitted with previous generations of the DryLock static seal upon request. Contact Wilfley for more information. 4
MODEL A features & benefits WET END 2 Heavy duty case design with 50 lb. flanges (300 lb. flanges available) Comprehensive hydraulics available to meet your needs 3 Pressure / temperature balance holes SEALING 2 4 2 4 Opti-expeller provides superior dynamic sealing with zero operational leakage 5 DryLock 3 seal engineered for reliable static sealing Expeller / seal wash out capability 5 Robust shaft with low L 3 /D 4 ratios minimizes deflections and increases seal life and reliability Other sealing options available including mechanical seals and packing POWER END 3 Frame bracket designed to protect bearing unit from pumpage (duplex stainless steel optional) Convenient lifting point Large sight glasses on both sides to easily verify oil level 303SS labyrinth seals prevent oil contamination 2 Easy clearance adjustments via external adjustment bolts HEAVY DUTY A ASME B3. PROCESS PUMP 5
MODEL A OPTIONS WET END Dry thermowell at casing discharge 3 2 300 lb. flanges 3 Flat face flanges 4 Casing drain 5 5 Casing steam jacket Recessed (vortex) impeller (not shown) 2 DIN flanges (not shown) Suction / discharge pressure gauge taps (not shown) SEALING Seal housing steam jacket Expeller cavity drain Dry thermowell at seal housing (not shown) Dry thermowell at expeller cavity (not shown) POWER END One-piece bearing frame Condition monitoring Extreme duty bearings C-face adapter 4 2 Dry thermowell at bearing housing (not shown) BASE PLATE 2 Fabricated base plate Channel base plate (not shown) Non-metallic base plate (not shown)
WILFLEY MODEL A CAPACITIES TOTAL DYNAMIC HEAD (FT) 00 00 500 400 300 0 0 3550 RPM CAPACITY (M 3 /HR) 0,000 2 3 3 4 5 2 0 50 0 50 TOTAL DYNAMIC HEAD (M) 0 0,000,000 CAPACITY (USGPM) 250 50 RPM CAPACITY (M 3 /HR) 0,000 TOTAL DYNAMIC HEAD (FT) 0 0 50 2 3 4 40 2 22 5 0 50 3 4 2 5 0 0,000,000 CAPACITY (USGPM) TOTAL DYNAMIC HEAD (M) 0 50 RPM CAPACITY (M 3 /HR) 0,000 30 TOTAL DYNAMIC HEAD (FT) 0 0 2 3 4 5 2 22 40 23 3 4 2 5 0 0,000,000 CAPACITY (USGPM) TOTAL DYNAMIC HEAD (M)
FRAME..5x- 2. 3x.5-3..5x- 4. 3x.5-5. 3x2-. 4x3-. 2x- FRAME 2 FRAME 3 FRAME 4 RECESSED. 3x.5-. 3x2-. 4x3-. x4-2. 3x.5-3 3. 3x2-3 4. 4x3-3 5. x4-3. x-5. x-5. x-s. x-s. 2.5x2-3 2. 4x4-3 22. x-3 23. x- TOTAL DYNAMIC HEAD (M) 0 0 40 0 0 0 40 250 RPM CAPACITY (USGPM) 0,000 4 2 3 3 4 2 5 0 0,000 CAPACITY (M 3 /HR) 500 400 300 0 0 TOTAL DYNAMIC HEAD (FT) TOTAL DYNAMIC HEAD (M) 50 40 30 450 RPM CAPACITY (USGPM) 0,000 2 3 4 2 22 5 3 4 2 5 0 0,000 CAPACITY (M 3 /HR) 50 0 50 TOTAL DYNAMIC HEAD (FT) TOTAL DYNAMIC HEAD (M) 25 50 RPM CAPACITY (USGPM) 0,000 5 2 3 4 5 2 22 5 3 23 4 2 5 0 0,000 CAPACITY (M 3 /HR) 0 0 40 TOTAL DYNAMIC HEAD (FT)
materials Wilfley and its wholly owned subsidiary, Western Foundries, provide new metals and proprietary processes for the longest possible pump and parts life and reliability. wilfley knows metallurgy Some of Wilfley s most recent innovations include: MAXALLOY 5 - a machinable 2% chrome hard iron with an average hardness of 45 HBN Alloy C Max - better corrosion resistance than CW2M WCD4 - better corrosion / erosion resistance than conventional CD4MCuN Item Name STANDARD MATERIALS Ductile Iron 3L CD4MCuN WCD4 TM Alloy WET END Cap Screws - Case Gasket Gylon Case Plate Ductile Iron 3L CD4MCuN WCD4 Alloy Casing Ductile Iron 3L CD4MCuN WCD4 Alloy Expeller Ductile Iron 3L CD4MCuN WCD4 Alloy Impeller Ductile Iron 3L CD4MCuN WCD4 Alloy O-rings Viton (Kalrez, Teflon-Coated Viton, EPDM Optional) SEAL DryLock 3 Ductile Iron 3L CD4MCuN WCD4 Alloy POWER END Bearing Frame Ductile Iron Bearing Locknut Steel Frame Bracket Ductile Iron (CD4MCuN Optional) Frame Foot Ductile Iron Inboard Bearing Single-Row Deep Groove Inboard Bearing Cover 3SS INPRO VBXS Oil Seal 303SS Oil Sight Glass Glass/Steel O-rings Viton Outboard Bearing Double-Row Deep Groove (2x Single-Row Angular Contact Optional) Shaft SAE4340 (3SS, Nitronic 50, Ferralium 255 Optional)
CONSTRUCTION D E TA I LS GENERAL Pump Weight Max. Solids Size SHAFT Diameter at Impeller Diameter at Coupling BEARINGS Heavy Duty Extreme Duty.5x- AA- FRAME FRAME 2 3x.5- AB-.5x- AA- 3x.5- A50-3x2- A0-4x3- A0-2x- A05-3x.5- A50-3x2- A0-4x3- A0- x4- A0- lbs 45 50 45 305 35 325 20 25 3 335 4 kg 3 43 4 32 34 4 52 0 in 0. 0.25 0.33 0.25 0.25 0.35 0.25 0.35 0.35 0.35 0.35 mm 5 in 0.5 mm 25 in 0.5.25 mm 22 2 Radial - 30 Thrust - 5A Radial - 30 Thrust - 30BECB Radial - 3 Thrust - 52A Radial - 3M Thrust - 3BECB GENERAL Pump Weight Max. Solids Size SHAFT Diameter at Impeller Diameter at Coupling BEARINGS Heavy Duty Extreme Duty 3x.5-3 A-3 3x2-3 A30-3 4x3-3 A40-3 FRAME 3 FRAME 4 x4-3 A0-3 2.5x2-3 - 4x4-3 - x-3 - x-5 A-5 x-5 A-5 x-s A- x-s A- x- - lbs 40 40 40 5 0 0,025,0,2,,20 2,0 kg 2 222 222 23 30 35 45 4 54 503 5 3 in 0.25 0.35 0.35 0.35 0.5 0.5 0.5 0.5 mm 25 25 25 3 3 3 3 25 in.25 2.25 mm 2 54 in.25 2.35 mm 2 0 Radial - 32 Thrust - 532 Radial - 32M Thrust - 32BECB Radial - 3A Thrust - 3BECB Radial - NU3EC Thrust - 3BECB 2
DIMENSIONS PUMP DIMENSIONS Dimensions in inches (millimeters) Pump Size CP D U X Y Z KEYWAY FRAME.5x- (AA-).5 (5) 3x.5- (AB-).5 (445) 5.25 (33) 0. (22).5 (5).5x- (AA-).5 (5) FRAME 2 3x.5- (A50-).5 (2) 3x2- (A0-).5 (242) 4x3- (A0-) (20) 2x- (A05-).25 (2).5 (2) 23.5 (5).3 (2) 3x.5- (A50-).5 (2) 3x2- (A0-).5 (242) 4x3- (A0-) (20) x4- (A0-) (254) 3.5 (343) FRAME 3 3x.5-3 (A-3).5 (2) 3x2-3 (A30-3).5 (22) 23.5 (5) 4x3-3 (A40-3) 2.5 (3) x4-3 (A0-3) (254).3 (2) 3.5 (343) FRAME 4 4 (2) - 4 (2) - 4 (2) - 2.5x2-3 25.25 (4) (254) 4 (2).5 () 4x4-3 2.5 () 2.5 (3) 4.2 ().3 (5) x-3 32 (3) (40) (52) () x-5 (A-5) (45) x-5 (A-5) (43) 33. (0) x-s (A-) 4.5 (3) 2.3 (0) (45) x-s (A-) (43) 0. x 0.0 (5 x 2) 0.25 x 0.3 ( x 3) 0.25 x 0.3 ( x 3) (52) - 0.3 x 0.3 ( x ) x- 45.52 (5).5 (4) (22).5 (2) These dimensions are not for construction. Certified dimension prints are available for your specific installation Flanges are drilled to match ASME B.5 50lbs. Z Y CP HT X D HD ØU HE HA HE HL HP HF HB 4X ØHH HG 3
BASE DIMENSIONS Dimensions in inches (millimeters) Base FRAME NEMA Motor IEC Motor HA HB HD (MAX) 3 43T-4T 0M-0L 5 (3) 3 () (22) 4.5 (4) 3.5 (2) 3.3 (2) 4 23T-25T 32M-0L (45) 4 (2).5 (2) (52) 45.5 (5) 4 (2) 53 24TS-32TS 0M-0L 2 (533) 53 (34) 2. (32).5 () 50.5 (23) 4 (2) FRAME 2 / 3 245 43T-4T 0L-32M 5 (3) 45 (43) 3.5 (34) 4.5 (4) 42.5 (0) 3.3 (2) 252 23T-25T 0M-0L (45) 52 (32) 4.3 (35) (52) 4.5 (25) 4 (2) 25 254T-2T 0L 2 (533) 5 (43) 4.5 (35).5 () 55.5 (4) 4 (2) 24 324TS-35T 225S-225M 2 (533) 4 (2) 4.5 (35).5 ().5 (52) 4 (2) 2 404T-405TS 250M 2 (0) (2) 4. (3).5 (24) 5.5 (4) 4.25 () 20 405T-44TS 20S-20M 2 (0) 0 (32) 5. (403).5 (24).5 () 4.25 () FRAME 4 3 24T-2T 0L 2 (0) (2).25 (4) HE HF HG HH HL HP 5.5 (4) HT (MIN) 0.5 () 4.5 (4).25 (32) 3.5 () 0.5 () (25) 4.5 (4).25 (32) 3.5 () 30 324T-405T 0L-250M 2 (0) 0 (32).25 (4).5 (24).5 () 4.25 () (25).5 (5).25 (32) 3.5 () 3 444T-44TS 20S-35L 2 (0) (24).25 (4) 5.5 (242) Overhead belt driven configurations also available 4
visit www.wilfley.com to see our full range of pumping solutions EMW Slurry Pump Kpro Slurry Pump 50 E. 5th Avenue, Commerce City, CO 0022, USA Toll Free: -00-525-30 Telephone: + (303) - Fax: + (303) -2 pumps@wilfley.com www.wilfley.com A-TB-EN 2.2 Printed in USA December 4 A.R. Wilfley and Sons, Inc.