SOUTHWEST OILFIELD PRODUCTS, INC.

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1 SOUTHWEST OILFIELD PRODUCTS, INC. MUD PUMP EXPENDABLE PARTS LIST SOUTHWEST A FLUID END FOR NATIONAL 14-P-220 MUD PUMP PERFORMANCE CHART PUMP MAX MAX STROKE LINER SIZE IN INCHES MODEL I.H.P. S.P.M. LENGTH 5 5 ½ 6 6 ½ 7 7 ½ P MAX-P.S.I G.P.R R.P.M NOTE: I.H.P.= INPUT HORSE POWER S.P.M.= STROKE PER MINUTE P.S.I.= POUNDS PER SQUARE INCH G.P.R.= GALLONS PER REVOLUTION *MAX P.S.I. CALCULATIONS DO NOT EXCEED MAXIMUM FLUID END PRESSURE RATINGS BASED ON 100% VOLUMETRIC EFFICIENCY AND 90% MECHANICAL EFFICIENCY V:\7500 psi Pump Triplex\NATIONAL 14-P psi\ A_National_14-P-220_7500PSI.pdf Rev. A 1/20/2015

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4 FLUID END TYPE MODEL OF PUMP SIZE OF PUMP SOUTHWEST 7500 P.S.I. NATIONAL 14-P X 14 ITEM NO. PART NO. DESCRIPTION QTY. REQ D A FLUID END ASSEMBLY: (CONSISTS OF ITEMS: 3,4,16,17,18,19,20,21,22,23,24,25,26,27,28,29,32,33,34) G-XX LINER REFER TO GUIDE FOR ORDERING CHART FOR TYPE (G); (Y); AND FOR BORE SIZE (XX) XX LINER SEAL WEARPLATE WEARPLATE & MODULE SEAL (ALSO AVAILABLE IN URETHANE PART# 2988U) 6 5 XX-BYY PISTON (REFER TO GUIDE FOR ORDERING CHART FOR SIZE (XX) AND FOR TYPE (YY) PISTON O-RING W32 PISTON ROD (WITH ELASTIC STOP NUT) 3 8 API-4ESN PISTON ROD ELASTIC STOP NUT SUB ROD CWY ROD CLAMP (CONSIST OF 10A, 10B, 10C)(FOR CLAMP ONLY, USE 6282C) 6 10A 1200H30 HOSE 3 10B PIPE 3 10C ROD CLAMP BOLT G82 PONY ROD 3 12 SEE PAGE VALVE 6 13 SEE PAGE VALVE INSERT (IF REQUIRED) 6 14 SEE PAGE VALVE SPRING 6 15 SEE PAGE VALVE SEAT 6 SWTM1700 HYDRAULIC SEAT PULLER KIT COMPLETE (REFER TO TOOLS SECTION IN CATALOG) THREADED FLANGE SCREW GLAND PLUG (COMPLETE WITH VALVE GUIDE; BUSHING; AND SCREWS) INCLUDES ITEMS 20, 21, & P119 HP VALVE COVER PLUG SEAL R VALVE GUIDE (COMPLETE WITH BUSHING #4700I) I VALVE GUIDE BUSHING (ALSO AVAILABLE IN URETHANE PART# 4700IU) VALVE GUIDE SCREW VALVE COVER STUD (WITH SW PART# HHN ½-6 HEAVY HEX NUT) POWER END STUD (WITH SW PART# HHN ½-6 HEAVY HEX NUT) 30

5 FLUID END TYPE MODEL OF PUMP SIZE OF PUMP SOUTHWEST 7500 P.S.I. NATIONAL 14-P X 14 ITEM NO. PART NO. DESCRIPTION QTY. REQ D LINER RETAINER FLANGE LINER RETAINER STUD (WITH SW PART# HHN ¼-7 HEAVY HEX NUT) LINER RETAINER NUT SUCTION MODULE STUD (WITH SW PART# HHN HEAVY HEX NUT) SUCTION MANIFOLD CAP SCREW SUCTION MANIFOLD 1 31 AJO326 SUCTION MANIFOLD SEAL SUCTION MODULE DISCHARGE MODULE DOWEL PIN DISCHARGE MANIFOLD STUD (WITH SW PART# HHN ¼-7 HEAVY HEX NUT) DISCHARGE MANIFOLD DISCHARGE MANIFOLD SEAL 3 ** POLYURETHANE SEALS AVAILABLE**

6 SOUTHWEST 7500 PSI 14-P-220 GUIDE TO ORDERING PISTONS LINERS LINER GASKETS SIZE FAIL-SAFE BLACK CAT DUAL-DURO GRAYLOY ZIRCONIA RUBBER URETHANE 5" 81BFS 81BBC 81BDD 6382G1 6382ZIR U 5 1/4" 82BFS 82BBC 82BDD 6382G U 5 1/2" 83BFS 83BBC 83BDD 6382G3 6382ZIR U 5 3/4" 84BFS 84BBC 84BDD 6382G U 6" 85BFS 85BBC 85BDD 6382G5 6382ZIR U 6 1/4" 86BFS 86BBC 86BDD 6382G U 6 1/2" 87BFS 87BBC 87BDD 6382G7 6382ZIR U 6 3/4" 88BFS 88BBC 88BDD 6382G U 7" 89BFS 89BBC 89BDD 6382G9 6382ZIR U 7 1/4" 91BFS 91BBC 91BDD 6382G /2" 92BFS 92BBC 92BDD 6382G /4" 93BFS 93BBC 93BDD 6382G " 94BFS 94BBC 94BDD 6382G /4" 95BFS 95BBC 95BDD 6382G14 8 1/2" 96BFS 96BBC 96BDD 6382G15 8 3/4" 97BFS 97BBC 97BDD 6382G BFS 98BBC 98BDD 6382G17

7 TYPE SOUTHWEST (Full Open) FULL OPEN-ROUGHNECK (Cast N Place Insert) FULL OPEN-ROUGHNECK (High Temp) FULL OPEN-ROUGHNECK (w/replaceable Urethane Insert) 3 WEB DOUBLE ANGLE O-RING 3 WEB (High Temp) 3 WEB STANDARD PLATE 4 WEB 4 WEB (High Temp) VALVES & SEATS 14-P-220 STAINLESS PULLER HEAD VALVE INSERT SPRING SEAT PULLER HEAD SPRING STYLE 777-8B N/A 941 N/A SWTM4250 SPLIT JAW SWND-7PH PANCAKE SWND-7V2 N/A SW L N/A SWND-7S12 SWTM40-SN SPLIT JAW SWND-7V2HC N/A SW L N/A SWND-7S12 SWND-7PH SWTM40-SN SWND-7V1 SWND-7I SW L N/A SWND-7S12 SWND-7PH SWTM40-SN SWR SWR N/A SWR SWR SWTM3-7T SWR SWR N/A SWR SWR SWTM3-7T SWR SWR N/A SWR SWR SWTM3-7T SWU5C-EEF SWUDD-7B SW N/A SW7DD-B12 SWTM4-7 SWU5C-EEFHT SWUDD-7BHT SW N/A SW7DD-B12 SWTM4-7 PANCAKE SPLIT JAW PANCAKE SPLIT JAW 3 J HOOK 4 J HOOK PANCAKE SPLIT JAW 3 J HOOK 4 J HOOK

8 TORQUE SPECIFICATIONS FOR A SOUTHWEST FLUID END ASSEMBLY FOR NATIONAL 14-P P.S.I. TORQUE TYPE (EXPRESSED IN FOOT-POUNDS) PART NUMBER DESCRIPTION COPPERCOTE MOLY GREASE DRY (NOT RECOMMENDED) API-4 ESN PISTON ROD NUT ROD CLAMP BOLT 150 MAXIMUM VALVE GUIDE SCREW VALVE COVER STUD POWER END STUD LINER RETAINER STUD SUCTION MODULE STUD SUCTION MANIFOLD CAP SCREW DISCHARGE MANIFOLD STUD NO MORE FORCE THAN ONE MAN ON 3' WRENCH/CHEATER COMBINATION

9 A National 14-P PSI FLUID END REVISION SUMMARY REVISION DATE REASON OF CHANGE REV A 1/20/15 Changed Item No. 10C Part No to what shows in MASS. Southwest Oilfield Products Wallisville Road, Houston, TX Office