SOUTHWEST MUD PUMP PARTS LIST
8446-25A_WIRTH_TPK-1600_7500PSI
| FLUID END TYPE | MODEL OF PUMP | SIZE OF PUMP | |||||||||
| SOUTHWEST 7500 PSI | WIRTH TPK-1600 | 7” X 12” | |||||||||
| ITEM | PART | QTY. | |||||||||
| NO. | NO. | DESCRIPTION | REQ，D | ||||||||
| FLUID END ASSEMBLY: (CONSISTS OF ITEMS 3,4,5，17，18，19,20,21，22,23,24,25,26,27,28,29,30,31，34,35,36,38,40,42,43,44) | |||||||||||
| 1 | LINER (REFER TO- GUIDE FOR ORDERING CHART FOR TYPE (G); (Y); AND FOR BORE SIZE (XX)) | 3 | |||||||||
| 2 | 2974-XX | LINER SEAL | 3 | ||||||||
| 3 | 8446-29 | LINER WEARPLATE | 3 | ||||||||
| 4 | 568-369 | WEARPLATE O-RING (PARKER SIZE NO. 2-369) | 3 | ||||||||
| 5 | 2988 | WEARPLATE & MODULE SEAL | 6 | ||||||||
| 6 | XX-BYY | PISTON (REFER TO- GUIDE FOR ORDERING CHART FOR SIZE (XX) AND FOR TYPE(YY)) | 3 | ||||||||
| 7 | 568-225 | PISTON SEAL | 3 | ||||||||
| 8 | 1287-32 | PISTON ROD (WITH ELASTIC STOP NUT) | 3 | ||||||||
| 9 | API-4ESN | PISTON ROD NUT | 3 | ||||||||
| 10 | 1287-1 | SUB ROD | 3 | ||||||||
| 11 | 1287CW | ROD CLAMP (WITH WATER JACKET) | 6 | ||||||||
| 11A | 1200H30 | HOSE (1/2” X 30” WITH 1/2” MALE X 3/8” MALE CONNECTIONS) | 3 | ||||||||
| 11B | 1200130 | PIPE (3/8” X 13” GALVANIZED AND THREADED ON ONE END) | 3 | ||||||||
| 11C | 4018-93 | BOLT (5/8” X 6-1/2” GRADE 8 BOLT WITH LOCK NUT AND WASHER) | 12 | ||||||||
| 12 | 6200G-26 | PONY ROD | 3 | ||||||||
| 13 | SEE PAGE | VALVE | 6 | ||||||||
| 14 | SEE PAGE | VALVE INSERT | 6 | ||||||||
| 15 | SEE PAGE | VALVE SPRING | 6 | ||||||||
| 16 | SEE PAGE | VALVE SEAT | 6 | ||||||||
| SWTM1700 | HYDRAULIC SEAT PULLER KIT COMPLETE (refer to tools section in catalog) | 1 | |||||||||
| 17 | 4488-25 | VALVE COVER FLANGE | 6 | ||||||||
| 18 | 4588-25 | SCREW GLAND | 6 | ||||||||
| 19 | 4690-25A | PLUG (COMPLETE WITH VALVE GUIDE，BUSHING，AND SCREWS; INCLUDES ITEMS 20, 21，22, 23) | 6 | ||||||||
| 20 | P115 | HP VALVE COVER PLUG NITRILE SEAL | 6 | ||||||||
| 21 | 4788-25R | VALVE GUIDE (complete with bushing #47001) | 6 | ||||||||
| 22 | 4700I | VALVE GUIDE BUSHING | 6 | ||||||||
| 23 | 4018-18 | VALVE GUIDE SCREW | 12 | ||||||||
| 24 | 4015-2 | VALVE COVER STUD (WITH SW PART# HHN1250-7 1-1/4-7 HEAVY HEX NUT) | 72 | ||||||||
| FLUID END TYPE | MODEL OF PUMP | SIZE OF PUMP | |||||||||
| SOUTHWEST 7500 PSI | WIRTH TPK-1600 | 7” X 12” | |||||||||
| ITEM NO. | PART NO. | DESCRIPTION | QTY. REQ，D | ||||
| 25 | 4020-20 | SPACER FLANGE CAP SCREW | 12 | ||||
| 26 | 6446-1 | LINER RETAINER PLATE | 3 | ||||
| 27 | 6446-2 | LINER RETAINER FLANGE | 3 | ||||
| 28 | 4018-7 | LINER RETAINER CAP SCREW | 30 | ||||
| 29 | 6546 | LINER RETAINER GLAND | 3 | ||||
| 30 | 4019-54 | SUCTION MODULE STUD (WITH SW PART# HHN1750-8 1-3/4-8 HEAVY HEX NUTS) | 18 | ||||
| 31 | 4018-19 | SUCTION MANIFOLD CAP SCREW | 18 | ||||
| 32 | 8546 | SUCTION MANIFOLD | 1 | ||||
| 33 | AJO419R | SUCTION MANIFOLD SEAL | 3 | ||||
| 34 | 8446-26 | SUCTION MODULE | 3 | ||||
| 35 | 8446-27 | DISCHARGE MODULE | 3 | ||||
| 36 | 8488-5 | DOWEL PIN | 6 | ||||
| 37 | 8346-25 | DISCHARGE MANIFOLD | 1 | ||||
| 38 | 4019-60 | DISCHARGE MANIFOLD STUD (with sw part# HHN1250-7 1-1/4-7 heavy hex nut) | 18 | ||||
| 39 | 2988 | DISCHARGE MANIFOLD SEAL | 3 | ||||
| 40 | 4020-19 | POWER END CAP SCREW | 24 | ||||
| 41 | 8488-11 | SET SCREW | 9 | ||||
| 42 | 8446-28 | SPACER FLANGE | 3 | ||||
| 43 | LW500 | LOCKWASHER ^ | 12 | ||||
| 44 | LW875 | LOCKWASHER 7/8 | 18 | ||||
SOUTHWEST\WIRTH TPK-1600 7″ X 12″ 7500 P.S.I. GUIDE TO ORDERING
| PISTONS | LINERS | LINER SEALS | |||||
| SIZE | FAIL-SAFE | DUAL-DURO® | GRAYLOY® | ZIRCONIA | RUBBER | URETHANE | |
| 4″ | 76-BSF | 76-BDD | 1388G06 | N/A | 2974-06 | 2974-06U | |
| 4 1/4″ | 77-BFS | 77-BDD | 1388G07 | N/A | 2974-07 | 2974-07U | |
| 4 1/2″ | 78-BFS | 78-BDD | 1388G08 | N/A | 2974-08 | 2974-08U | |
| 4 3/4″ | 79-BFS | 79-BDD | 1388G09 | N/A | 2974-09 | 2974-09U | |
| 5″ | 81-BFS | 81-BDD | 1388G1 | 1388ZIR1 | 2974-1 | 2974-1U | |
| 5 1/4″ | 82-BFS | 82-BDD | 1388G2 | N/A | 2974-2 | 2974-2U | |
| 5 1/2″ | 83-BFS | 83-BDD | 1388G3 | 1388ZIR3 | 2974-3 | 2974-3U | |
| 5 3/4″ | 84-BFS | 84-BDD | 1388G4 | N/A | 2974-4 | 2974-4U | |
| 6″ | 85-BFS | 85-BDD | 1388G5 | 1388ZIR5 | 2974-5 | 2974-5U | |
| 6 1/4″ | 86-BFS | 86-BDD | 1388G6 | N/A | 2974-6 | 2974-6U | |
| 6 1/2″ | 87-BFS | 87-BDD | 1388G7 | 1388ZIR7 | 2974-7 | 2974-7U | |
| 6 3/4″ | 88-BFS | 88-BDD | 1388G8 | N/A | 2974-8 | 2974-8U | |
| 7″ | 89-BFS | 89-BDD | 1388G9 | N/A | 2974-9 | 2974-9U | |
| VALVES & SEATS | |||||||
| TYPE | VALVE | INSERT | SPRING | STAINLESS SPRING | SEAT | PULLER HEAD | |
| FULL OPENING | SWND-6-V2 | 5710-115 | SWND-6-S4 | SWND-6-PH | |||
| *DBL-ANGLE O-RING | SWR-0500119 | SWR-0515845 | SWR-0513744 | SWR-0514790 | SWR-0512436 | SWTM-3-7D | |
| *STANDARD PLATE | SWR-0505038 | SWR-0504890 | SWR-0513937 | SWR-0515576 | SWR-0512436 | SWTM-3-7D | |
| *CROSS ARM SEAT | SW5B-EH | SWUDD-6A | SW5710-115 | SW1235-123 | SW6ADD-B4 | SWJDD-6A | |
| * CENTER GUIDED VALVES AND SEATS | |||||||
| ITEM NO. | PART NUMBER | DESCRIPTION | QTY. |
| 1 | 8376-26 | DISCHARGE CROSS FOR 7500 PSI SWFE | 1 |
| 2 | 8290-26RD | STRAINER | 1 |
| 3 | 4019-56 | STUD | 48 |
| 4 | HHN1125-7 | 1-1/8-7 HEAVY HEX NUT | 48 |
| 5 | BX-155 | 4-1/16″ RING JOINT GASKET | 1 |
| 6 | BX-169 | 5-1/8″ RING JOINT SEAL | 4 |
| 7 | 10000-5BFLANGE | API 6A 10000# TYPE 6BX 5-1/8 BLIND FLANGE | 1 |
TORQUE SPECIFICATIONS FOR 8446-25A SOUTHWEST FLUID END ASSEMBLY
WIRTH TPK-1600 7500 P.S.I.
TORQUE TYPE (EXPRESSED IN FOOT-POUNDS)
| PART NUMBER | DESCRIPTION | COPPERCOTE | MOLY GREASE |
| API-4ESN | PISTON NUT | NO MORE FORCE THAN ONE MAN ONA3 WRENCH/CHEATER COMBINATION | |
| 4018-93 | ROD CLAMP BOLT | 150 MAXIMUM | 150 MAXIMUM |
| 4018-18 | VALVE GUIDE SCREW | 53 | 80 |
| 4015-2 | VALVE COVERSTUD | 669 | 970 |
| 4020-20 | SPACER FLANGE CAP SCREW | 2730 | 4095 |
| 4020-19 | POWER ENDCAP SCREW | 1196 | 1794 |
| 4018-7 | LINER RETAINER CAP SCREW | 455 | 682 |
| 4019-54 | SUCTION MODULE STUD | 2275 | 3299 |
| 4018-19 | SUCTION MANIFOLD CAP SCREW | 215 | 322 |
| 4019-60 | DISCHARGE MANIFOLD STUD | 757 | 1098 |