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 SEALSSIZE 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