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Dover PSG Wilden Pro-Flo SHIFT PS420, Engineering Operation & Maintenance Manual, Page: 25 / 28

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Dover PSG Wilden Pro-Flo SHIFT PS420 Engineering Operation & Maintenance Manual Download Page 25

 

WIL-11500-E-11  

25 

PS420/430 Bolted Metal 

 

SECTION 9 

 

MATERIAL

 

DIAPHRAGM 

(2) 

FULL-STROKE 

DIAPHRAGMS 

(2) 

FULL-STROKE 

BACK-UP 

DIAPHRAGMS 

(2) 

EZ-INSTALL 

DIAPHRAGMS 

(2) 

FULL-STROKE  

IPD 

DIAPHRAGMS 

(2) 

VALVE BALLS 

(4) 

VALVE SEATS 

(4) 

VALVE SEAT 

O-RING 

(4) 

Polyurethane 

 

 

 

04-1022-50 

 

08-1080-62-50 04-1128-50 

 

Neoprene 04-1010-51 

 

 

 

 

08-1080-51-50 04-1128-51 

 

Buna-N 04-1010-52 

 

 

 

 

08-1080-52-50 04-1128-52 

 

Geolast 

 

 

 

04-1022-15 

 

 

 

 

EPDM 04-1010-54 

 

 

 

 

08-1080-54-50 04-1128-54 

 

FDA EPDM 

04-1010-74 

 

 

 

 

 

 

 

FKM 04-1010-53 

 

 

 

 

08-1080-53-50 04-1128-53 

 

PTFE 

 

04-1040-55-42 

 

 

 

04-1085-55 

 

71-1281-55 

1

 

Non-Food Grade Saniflex 

 

 

 

 

04-1031-46 

 

 

 

Saniflex 

 

 

04-1065-56 04-1022-56 04-1031-56 08-1080-56-50 04-1128-56 

 

FDA Wil-Flex 

 

 

04-1065-57 04-1022-57 04-1031-57 

 

04-1128-57 

 

Wil-Flex 

 

 

 

04-1022-58 04-1031-58 

08-1080-58-50 04-1128-58 

 

Aluminum 

 

 

 

 

 

 

04-1129-01 

 

Mild Steel 

 

 

 

 

 

 

04-1129-08 

 

Stainless Steel 

 

 

 

 

 

 

04-1129-03 

 

 

 

 

 

 

 

 

 

LW0055 Rev. X

 

1

 Used in conjunction with metallic valve seat. 

 

 

 

 

 

 

 

ELASTOMER OPTIONS 

Summary of Contents for PSG Wilden Pro-Flo SHIFT PS420

Page 1: ...WIL 11500 E 11 Where InnovationFlows EOM ENGINEERING OPERATION MAINTENANCE MANUAL PS420 PS430 Bolted Metal Pump ...

Page 2: ...G California LLC Wil Flex is a trademark of PSG California LLC Saniflex is a trademark of PSG California LLC All trademarks names logos and service marks collectively trademarks in this document are registered and unregistered trademarks of their respective owners Nothing contained in this document should be construed as granting any license or right to use any trademark without the prior written ...

Page 3: ...Rubber Fitted 9 PS420 PS430 Metal EZ Install TPE Fitted 9 PS420 PS430 Metal Full Stroke PTFE Fitted 10 Suction Lift Capability 11 SECTION 6 Suggested Installation Operation Maintenance and Troubleshooting 12 SECTION 7 Disassembly Reassembly 15 Pump Disassembly 15 Air Valve Center Section Disassembly 18 Single Point Exhaust 21 Reassembly Hints and Tips 21 SECTION 8 Exploded View and Parts List 23 S...

Page 4: ...ly with all wetted pump components CAUTION Before attempting any maintenance or repair disconnect the compressed air line to the pump and allow all air pressure to bleed from the pump Disconnect all intake discharge and air lines Drain the pump by turning it upside down and allowing any fluid to flow into a suitable container Be aware of any hazardous effects of contact with your process fluid CAU...

Page 5: ... SANIFLEX HYTREL CREAM FW SANITARY WIL FLEX SANTOPRENE TWO BLACK DOTS NE NEOPRENE GREEN DOT PU POLYURETHANE BROWN TF PTFE WHITE VT FKM WHITE DOT WF WIL FLEX SANTOPRENE THREE BLACK DOTS VALVE SEATS A ALUMINUM BN BUNA N RED DOT EP EPDM BLUE DOT FS SANIFLEX HYTREL CREAM FW SANITARY WIL FLEX SANTOPRENE TWO BLACK DOTS M MILD STEEL NE NEOPRENE GREEN DOT PU POLYURETHANE BROWN S STAINLESS STEEL VT FKM WHI...

Page 6: ...ts seat while the opposite discharge valve ball is forced onto its seat forcing fluid to flow through the pump discharge The movement of diaphragm A toward the center of the pump creates a vacuum within liquid chamber A Atmospheric pressure forces fluid into the inlet manifold of the pump The inlet valve ball is forced off its seat allowing the fluid being pumped to fill the liquid chamber FIGURE ...

Page 7: ...2 K 333 13 1 L 326 12 9 M 531 20 9 N 525 20 7 P 274 10 8 R 224 8 8 S 152 6 0 T 178 7 0 U 11 0 4 LW0231 REV E PS420 METAL VERTICAL PORT DIMENSIONS ITEM METRIC mm STANDARD inch A 442 17 4 B 64 2 5 C 261 10 3 D 391 15 4 E 429 16 9 F 51 2 0 G 249 9 8 H 49 1 9 J 132 5 2 K 333 13 1 L 326 12 9 M 531 20 9 N 525 20 7 P 274 10 8 R 224 8 8 S 152 6 0 T 178 7 0 U 11 0 4 LW0232 REV F DIMENSIONAL DRAWING ...

Page 8: ... 8 T 178 7 0 U 203 8 0 V 11 0 4 DIN mm ANSI Inch W 150 DIA 5 0 DIA X 109 DIA 4 3 DIA Y 16 DIA 0 6 DIA LW0233 REV D PS430 ALUMINUM DIMENSIONS ITEM METRIC mm STANDARD inch A 442 17 4 B 80 3 1 C 324 12 7 D 531 20 9 E 594 23 4 F 606 23 9 G 122 4 8 H 122 4 8 J 50 2 0 K 132 5 2 L 334 13 1 M 531 20 9 N 312 12 3 P 274 9 7 R 206 8 1 S 152 6 0 T 170 6 7 U 11 0 4 DIN mm ANSI Inch V 150 DIA 5 0 DIA W 109 DIA ...

Page 9: ... will fall in the center of the pump s performance curve Caution Do not exceed 8 6 bar 125 psig air supply pressure PS420 PS430 METAL EZ INSTALL TPE FITTED Ship Weights 420 Threaded AL 26 kg 57 lb 420 Threaded SS 50 kg 111 lb 420 Threaded Iron 39 kg 86 lb 430 Flanged AL 28 kg 62 lb 430 Flanged SS 53 kg 116 lb 430 Flanged Iron 42 kg 92 lb Air Inlet 3 4 Inlet 38 mm 1 1 2 Outlet 38 mm 1 1 2 Suction L...

Page 10: ...oke1 1 1 L 0 30 gal AL 0 9 L 0 24 gal SS 0 9 L 0 24 gal Iron Max Flow Rate 485 lpm 128 gpm Max Size Solids 6 4 mm 1 4 1Displacement per stroke was calculated at 4 8 bar 70 psig air inlet pressure against a 2 1 bar 30 psig head pressure Example To pump 280 lpm 74 gpm against a discharge head of 2 1 bar 30 psig requires 5 5 bar 80 psig and 88 Nm3 h 52 scfm air consumption Flow rates indicated on cha...

Page 11: ... atmospheric pressure and pipe friction loss all affect the amount of suction lift your pump will attain PS420 PS430 STAINLESS STEEL SUCTION LIFT CAPABILITY Suction lift curves are calibrated for pumps operating at 305 m 1 000 above sea level This chart is meant to be a guide only There are many variables that can affect your pump s operating characteristics The number of intake and discharge elbo...

Page 12: ...d then multiplying that figure by the displacement per stroke Muffler Using the standard Wilden muffler sound levels are reduced below OSHA specifications You can use other mufflers to reduce sound levels farther but they usually reduce pump performance Elevation Selecting a site that is well within the pump s dynamic lift capability will assure that loss of prime issues will be eliminated In addi...

Page 13: ...used to regulate volume Pump discharge rate also can be controlled by throttling the pump discharge by partially closing a valve in the discharge line of the pump This action increases friction loss which reduces flow rate See Performance This is useful when the need exists to control the pump from a remote location When the pump discharge pressure equals or exceeds the air supply pressure the pum...

Page 14: ...o be unable to shift Pump runs but little or no product flows 1 Check for pump cavitation Slow pump speed down to allow thick material to flow into liquid chambers 2 Verify that vacuum required to lift liquid is not greater than the vapor pressure of the material being pumped cavitation 3 Check for sticking ball check valves a If material being pumped is not compatible with pump elastomers swellin...

Page 15: ...o a suitable container Be aware of any hazardous effects of contact with your process fluid NOTE Your specific pump model may vary from the configuration shown however pump disassembly procedure will be the same NOTE Replace worn parts with genuine Wilden parts for reliable performance Step 1 Step 2 Step 3 Before starting disassembly mark a line from each liquid chamber to its corresponding air ch...

Page 16: ...old to expose the valve balls and valve seats Inspect ball cage area of manifold for excessive wear or damage Step 7 Step 8 Step 9 Remove the inlet valve balls and valve seats from the inlet manifold and liquid chambers and inspect for nicks gouges chemical attack or abrasive wear Replace worn parts with genuine Wilden parts for reliable performance Using the appropriate sized wrench remove the li...

Page 17: ...with genuine Wilden parts for reliable performance To remove the diaphragm assembly from shaft secure shaft with soft jaws aluminum plastic or plywood to ensure the shaft is not damaged Using an adjustable wrench remove the diaphragm assembly from the shaft Remove outer piston and stud if equipped Inspect for wear and replace if necessary DISASSEMBLY REASSEMBLY ...

Page 18: ...ur process fluid NOTE Replace worn parts with genuine Wilden parts for reliable performance Step 1 Step 2 Step 3 Using a pair of snap ring pliers remove the snap ring from the pilot sleeve Using an O ring pick remove the O ring from modulator spool Using the appropriate sized wrench loosen and remove the fasteners that attach the air chamber to the center section Step 4 Step 5 Step 6 Lift the air ...

Page 19: ...r to the spool or O rings and replace if necessary Using the appropriate sized wrench loosen the fasteners and lift away remaining air chamber and center block gasket from center section Replace gasket if necessary Step 10 Step 11 Step 12 Using an O ring pick remove the two 2 shaft bushings from center block Inspect and replace if necessary Using an O ring pick gently remove the two 2 Glyd rings f...

Page 20: ...n the end cap using an O ring pick Replace the O ring s if necessary NOTE The Pro Flo SHIFT air valve incorporates an end cap at both ends of the air valve Step 15 Remove the air valve spool from the air valve body by threading one air valve bolt into the end of the air valve spool and gently sliding the spool out of the air valve body Inspect seals for signs of wear and replace the entire air val...

Page 21: ...torque specifications are on this page The following tips will assist in the assembly process Lubricate the air valve bore center section shaft and pilot spool bore with NLGI grade 2 white EP bearing grease or equivalent Clean the inside of the center section shaft bore to ensure no damage is done to new shaft seals A small amount of NLGI grade 2 white EP bearing grease can be applied to the muffl...

Page 22: ...5 With the seal clamped in the pliers insert the seal into the busing bore and position the bottom of the seal into the correct groove When the bottom of the seal is seated in the groove release the clamp pressure on the pliers This will allow the seal to partially snap back to its original shape 6 After removing the pliers you will notice a slight bump in the seal shape Before the seal can be res...

Page 23: ...ION 8 PS420 PS430 METAL LW0021 REV L ALL CIRCLED PART IDENTIFIERS ARE INCLUDED IN REPAIR KITS PLASTIC ADS EXPLODED VIEW AND PARTS LIST VERTICAL PORT ALUMINUM FLANGED STAINLESS STEEL AND DUCTILE IRON FLANGED FULL FLOW PTFE FULL STROKE IPD METAL ADS ...

Page 24: ...r 1 4 MNPT 1 04 3240 07 Wetted Path Components 26 Liquid Chamber 2 04 5015 03 04 5015 01 04 5015 02 27 Manifold Discharge 1 1 2 NPT 1 04 5035 03 04 5035 01 04 5035 02 Manifold Discharge 1 1 2 BSPT 1 04 5036 03 04 5036 01 04 5036 02 Manifold Discharge Vert 1 1 4 NPT 1 04 5037 03 04 5037 01 04 5037 02 Manifold Discharge Vert 1 1 4 BSPT 1 04 5038 03 04 5038 01 04 5038 02 Manifold Discharge 1 1 2 ANSI...

Page 25: ... 1080 52 50 04 1128 52 Geolast 04 1022 15 EPDM 04 1010 54 08 1080 54 50 04 1128 54 FDA EPDM 04 1010 74 FKM 04 1010 53 08 1080 53 50 04 1128 53 PTFE 04 1040 55 42 04 1085 55 71 1281 55 1 Non Food Grade Saniflex 04 1031 46 Saniflex 04 1065 56 04 1022 56 04 1031 56 08 1080 56 50 04 1128 56 FDA Wil Flex 04 1065 57 04 1022 57 04 1031 57 04 1128 57 Wil Flex 04 1022 58 04 1031 58 08 1080 58 50 04 1128 58...

Page 26: ...WIL 11500 E 11 26 PS420 430 Bolted Metal NOTES ...

Page 27: ...WIL 11500 E 11 27 PS420 430 Bolted Metal NOTES ...

Page 28: ... USA P 1 909 422 1730 psgdover com Copyright 2021 PSG a Dover Company PSG reserves the right to modify the information and illustrations contained in this document without prior notice This is a non contractual document WIL 11500 E 11 Where InnovationFlows ...

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