
EWS446 Mud Pump TECHNICAL SPECIFICATION
Rated input power 328KW (440HP)
Rated Stroke 320 Stroke/Minute(320SPM)
Stroke 152.4mm (6")
Gear Ratio 4.578 :1
Max. operation pressure 35Mpa
Valve chamber Valve-Over API 4#
Max. liner dia. 6″
Max. liner mud pressure(160 stroke/minute)16.9Mpa
Dia. of suction manifold, 6″ (150#) Flange
Dia. of discharge manifold 3″(900#) Flange
Dia. pinion shaft 95.25 mm(3.75″)
Key 22.174x15.9mm
Dimension:(No included base), 2479X1219X1103 mm
The pump is compact structure, small volume, lightweight, integrated herringbone gear pair, large transmit torque and smooth run. Crankshaft is welding forged and light weight without liberation
W446 Mud Pump Single-acting Triplex Pump can be used widely in oilfield operation. Liner size from 31/4"--6" is better-adopted piston structure for workover operation and low well drilling operation while plunger structure for liner size from 2---3-1/4" for high- pressure operation.
POWER END PARTS
The Pump stand is constructed of steel plates by welding. Furthermore, because the post weld annealing treatment is applied to eliminate the internal stress, its strength is high and its steel is good. Moreover, the strengthening plate structure is adopted in the crank shaft bearing house and the main bearing house, therefore its strength is high and its steel is good.
The crank shaft is constructed of forgings in balance, and thus it is light in weight and it runs smoothly without any vibration.
The gear shaft is made of forgings of alloy steel and the herringbone gear as a whole is installed with medium hardness tooth surface gear on the shaft.
The cross head is made of ductile cast iron by entire cast which thus makes the wear-resistant good. The guide plate is formed in up- and - down structure which thus can adjust the concentricity by the gasket in the up or the down gasket.
The hydraulic cylinder is made of alloy steel cast in straight-through type and its volume small and volumetric efficiency high. Furthermore, the surface of the cylinder has been treated with chemical nickel-plating to enhance its wear-resistant.
The cylinder liners of the 446 pump have a same sized external diameter. The fasten effect is achieved by the squared cylinder liner pressing cover and the bolt pressing the hydraulic cylinder. The seal between the cylinder liner and the hydraulic cylinder is achieved by the rubber mat in rectangle.
In the lubrication system, the forced lubricating is adopted. The gear oil pump, which is installed in the oil rank, transmits the pressured oil, through lubrication lines, into the cross head guide plate and all the shafts to achieve the forced lubrication and cooling purpose.

| EWCO | W-446 | 6 x 6 | ||||||||
| LINERS | LINER GASKETS | PISTONS | PISTON REPLACEMENT RUBBERS | |||||||
| SIZE | CERAMIC | SUPREME | RUBBER | URETHANE | BLUE LIGHTNING | GREEN DUO | WHITE LIGHTNING | SUPREME | WHITE LIGHTNING | SUPREME |
| 4" | 7562400 | 5562400 | 7916537 | MB40-15 | 1502052 | 12180170 | 15180102 | |||
| 4 1/4" | ||||||||||
| 4 1/2" | 7562450 | 5562450 | 7916537 | MB44-15 | 1502054 | 12180197 | 12180196 | 15180145 | 15180144 | |
| 4 3/4" | ||||||||||
| 5" | 7562500 | 5562500 | 7916537 | MB50-15 | 1502056 | 12180254 | 12180253 | 15180186 | 15180185 | |
| 5 1/4" | ||||||||||
| 5 1/2" | 7562550 | 5562550 | 7916537 | MB54-15 | 1502058 | 12180338 | 12180337 | 15180228 | 15180227 | |
| 5 3/4" | ||||||||||
| 6" | 7562600 | 5562600 | 7916537 | MB60-15 | 1502060 | 12180395 | 12180394 | 15180269 | 15180268 | |
| 6 1/4" | ||||||||||
| 6 1/2" | ||||||||||
| 6 3/4" | ||||||||||
| 7" | ||||||||||
| 7 1/4" | ||||||||||
| 7 1/2" | ||||||||||
| 7 3/4" | ||||||||||
| 8" | ||||||||||
| For Bonded White Lightning Pistons add "XT" to Green Duo Part # | ||||||||||
| VALVES, SEATS, SPRINGS & INSERTS | GASKETS | |||||||||
| ROUGHNECK | ROUGHNECK HP | SUPREME | OEM | URETHANE | L STYLE | URETHANE | ||||
| VALVE-White Lightning Insert | N/A | Valve Cover | 7916826 | |||||||
| VALVE-Urethane Insert | 9700099 | 60152949 | Cylinder Head | 7916830 | ||||||
| VALVE-Rubber Insert | N/A | N/A | Plug Seal | |||||||
| SEAT | 80130248 | 61103008 | ||||||||
| SPRING | 55213417 | |||||||||
| SPRING-Stainless | 55403067 | |||||||||
| INSERT-Urethane | 9705058 | 62400114 | MODULES | OEM | MISSION L | |||||
| INSERT-Rubber | N/A | N/A | Complete Assembly | |||||||
| SEAT PULLER ASSEMBLIES | Discharge Module Studded | |||||||||
| Puller Assembly 1 | M 1100 | M 1100 | Suction Module Studded | |||||||
| Puller Head | 181235003 | 181240110 | One Piece OEM Style Studded | |||||||
| Crosshead Extension Rods, Quick Connect Rods, Self Aligning Rod Assemblies & Piston Rods | ||||||||||
| Crosshead Rod | Quick Connect | Self Aligning Rod Assembly | Pony Rod Baffle | Piston Rod | Sub Rod | Stud | Rod Nut | Clamp | Covered Rod Nut | Pony Rod Seal |
| 2404339 | 5402052 | CRN-1 | ||||||||

Weatherford is one of the world's largest multinational oil and natural gas service companies. The company provides products and services for drilling, evaluation, completion, production and intervention of oil and natural gas wells, along with pipeline construction and commissioning. Headquartered in Switzerland, Weatherford operates in more than 100 countries across the globe and employs more than 35,000 people (2016).

All our fluid end parts are manufactured to API 7K quality standards.
Parts are available for these popular pump models:
BOMCO/Emsco Mud Pumps:F2200HL, F1600HL, F-1300, F-1600, FB1300, FB1600, F-800, F-1000, F-500, F-350, DB-550, DA-700, FA-1600/1300, FC-2200, D-300/500, D-375, D-700,
LS National Mud Pumps: 3NB-500C, 3NB1000C, 3NB1300C, 3NB1600
Ideco Mud Pumps: T-500, T-800, T-1000, T-1300, T-1600,
National Mud Pumps: 7P50, 8P80, 9P100, 10P130, 12P160, N1300, C-250, K-700, 14-P-220, E-700/G-1000, K-500, K-380, K-500A/700A, C-250/350, JWS-400,
Gardner Denver Mud Pumps: PZ7, PZ8/9, PZ10/11, FK-FXK, FY-FXD, FD-FXX, FG-GXG, FG-FXG, KG-KXG, FQ-FXQ, FF-FXF, FF-FXP,
Oilwell Mud Pumps: A-560/600-PT, A-850-PT/A-1100-PT, A-1700-PT/A-1400-PT
Wirth Mud Pump: TPK1000, TPK1600, TPK 2000,TPK2200
Russian Mud Pumps: UNBT-950, UNB-600, 8T-650, UNBT650, NBT600, UNB1180, UNB1180L, NB125, NB80, NB50, NB32
WEATHERFORD/Ellis Williams: E-447, E-2200
Drillmec Mud Pump: 9T1000, 12T1600, 7TS600, 7TS500, 9T800
Romania Mud Pump: 3PN-1000, 3PN-1600, 3PN-2000
And other brand spare parts for WIRTH, OPI, Ellis Williams, Wilson, Gaso, Skytop/Brewster.

| Item | Part number | Description | Qty | Item | Part number | Description | Qty |
| 1 | B-440343 | Valve Cover | 2 | 17 | B-440321 | Valve Guide, Suction | 1 |
| 2 | B-440323 | Plug, Valve Cover | 1 | 18 | GB/T 3452.1 | O- Ring φ150x5.3 | 1 |
| 3 | W-440.01.010 | Seal, Valve Cover | 1 | 19 | W0101 | Stud 3/4-10UNCX1 11/16 | 4 |
| 4 | W-440.01.004 | Spring, Valve | 2 | 20 | W-440.01.008 | Seal, Liner | 1 |
| 5 | W-440.01.03.00 | Valve Assy(API #4) | 2 | 21 | W-440307-Re | Liner | 1 |
| 6 | W-440.01.002 | Seat, Valve | 2 | 22 | B-440322 | Liner Clamp | 1 |
| 7 | GB/T 3452.1 | O- Ringφ100x3.55 | 2 | 23 | W-440.01.007 | Self-Lock Nut | 1 |
| 8 | D-440342 | Valve Cover Flange | 2 | 24 | Piston | 1 | |
| 9 | D-440003 | Fluid End Module | 1 | 25 | GB/T 3452.1 | O- Ring φ25x3.55 | 1 |
| 10 | W-440.01.013 | Stud 3/4-10UNCX6 | 2 | 26 | B-440308 | Piston Rod | 1 |
| 11 | NF2-3/4 | Nut 3/4-10UNC-2B | 2 | 27 | W0105 | Nut 9/16-12UNC | 2 |
| 12 | GB/T 3452.1 | O-Ring φ47.5x5.3 | 1 | 28 | GB/T93 | Washer 14 | 2 |
| 13 | W-440.01.011 | Stud 7/8-9UNCX4 1/2 | 12 | 29 | B-440227.01 | Washer Ring | 1 |
| 14 | NF2-7/8 | Nut 7/8-9UNC | 12 | 30 | W0104 | Stud 9/16-12UNCX4 | 2 |
| 15 | B-440309 | Plug, Cylinder Cover | 1 | 31 | W-440.01.006 | Nut 1 1/8-8UN | 4 |
| 16 | W-440.01.001 | Seal, Cylinder Cover | 1 | 32 | W-440.01.005 | Stud 1 1/8-8UNX7 1/4 | 4 |

| ITEM | PART NUMBER | DESCRIPTION | QTY/PUMP |
| TS-6316-0325-00 | FLUID END MODULE COMPLETE ASSEMBLY (INCLUDES ITEM 2-24, 26- 29) | 3 | |
| 1 | TS-6316-0357-00 | FLUID END MODULE STUDDED (INCLUDES ITEM 2-9) | 3 |
| 2 | TS-6316-0356-00 | FLUID END MODULE ONLY (UNSTUDED) | 3 |
| 3 | TS-7507-2013-00 | STUD, MODULE TO LINER CLAMP | 36 |
| 4 | TS-7601-0610-18 | LINER CLAMP STUD NUT | 36 |
| 5 | TS-7507-2201-00 | POWER FRAME STUD | 18 |
| 6 | TS-7507-2210-00 | STUD, MODULE TO CYLINDER | 18 |
| 7 | TS-7601-0630-17 | NUT (FOR ABOVE) | 48 |
| 8 | TS-7507-2108-00 | STUD, MODULE TO DISC. MANIFOLD | 12 |
| 9 | TS-7601-0630-24 | NUT (FOR ABOVE) | 12 |
| 10 | TS-6316-0354-00 | GUIDE, LOWER VALVE (WITH BUSHING) | 3 |
| 11 | TS-6316-0096-00 | BUSHING, LOWER VALVE GUIDE | 3 |
| 12 | TS-6316-0360-00 | LOCKBOLT, LOWER VALVE GUIDE | 3 |
| 13 | TS-6316-0363-00 | ALIGNMENT RING | 3 |
| 14 | TS-6316-0369-00 | GASKET, HEAD SEAL (G-801) | 3 |
| 15 | TS-6316-0364-00 | PLUG, CYLINDER HEAD | 3 |
| 16 | TS-6316-0361-00 | RING, THREADED CYLINDER HEAD | 3 |
| 17 | TS-6316-0362-00 | CAP, THREADED CYLINDER HEAD | 3 |
| 18 | TS-6316-0092-00 | GASKET, VALVE COVER (G-741) | 3 |
| 19 | TS-7501-0051-00 | SCREW, RETAINER (UPPER) | 12 |
| 20 | TS-6397-0603-00 | PLATE, RETAINER (UPPER) | 3 |
| 21 | TS-6397-0575-00 | GUIDE, UPPER VALVE | 3 |
| 22 | TS-6316-0039-00 | COVER, VALVE POT | 3 |
| 23 | TS-6316-0373-00 | GASKET, WEAR PLATE (G-800) | 3 |
| 24 | TS-6316-0365-00 | PLATE, WEAR | 3 |
| 25 | TS-6316-0373-00 | GASKET, LINER (G-800) | 3 |
| 26 | TS-6316-0366-00 | RING, LINER THREADED | 3 |
| 27 | TS-6316-0367-00 | LINER LOCK | 3 |
| 28 | TS-7602-1600-25 | GASKET, DISCHARGE MANIFOLD | 3 |
| 29 | TS-7602-1600-61 | GASKET, SUCTION MANIFOLD | 3 |
| 30 | TMFB6-STUDSSET | FB-1300/1600 STUDS AND NUTS SET (INCLUDES 12 PCS TS-7507-2013-00, 12 PCS TS-7601-0610-18, 6 PCS TS-7507-2201-00, 6 PCS TS-7507-2210-00, 16 PCS TS-7601-0630-17, 4 PCS TS-7507-2108-00, 4 PCS TS-7601-0630-24) | 3 |
| 31 | TMFB6-SEALKIT | FB-1300/1600 MODULE SEAL KIT (INCLUDES ONE G-800, ONE G-741, ONE G-801, ONE TS-7602-1600-25, ONE TS-7602-1600-61) | 3 |

| MISSION "L" MODULE FOR GARDNER DENVER PZ-10/PZ-11 FLUID END MODULE & ACCESSORIES | ||||
| ITEM # | SW PART # | MISSION PART # | DESCRIPTION | QTY PER PUMP |
| FEMPZ1011ASSYSW | FLUID END MODULE COMPLETE ASSEMBLY (INCLUDES ITEMS: 1-26) | 3 | ||
| 1 | 8477-1D | FEMPZ1011DISSW | MODULE, DISCHARGE STUDDED (INCLUDES ITEMS 1, 3-13) | 3 |
| 2 | 8477-2S | FEMPZ1011SUCSW | MODULE, SUCTION STUDDED - (INCLUDES ITEMS 2, 5-6) | 3 |
| 3 | 4016-97 | OWA17DSUCSSW | STUD, DISCHARGE TO SUCTION MODULE | 18 |
| 4 | 0-7601-0630-17 | NUT, DISCHARGE TO SUCTION STUD | 18 | |
| 5 | Feb-15 | OWA17TRSSW | STUD, THREADED RING | 72 |
| 6 | 6300200 | NUT, THREADED RING STUD | 72 | |
| 7 | 4018-35 | PZ1011GPFSSW | STUD, POWER FRAME (SHORT) | 24 |
| 8 | 6300200 | NUT, POWER FRAME STUD AND LINER RETAINER STUD | 24 | |
| 9 | 4018-34 | PZ1011LCSSW | STUD, LINER RETAINER (LONG) | 24 |
| 10 | /4017-5 | PZ1011DMSSW | STUD, DISCHARGE MANIFOLD | 12 |
| 11 | PZ789TRSN | NUT, DISCHARGE MANIFOLD STUD | 12 | |
| 12 | /8488-5 | 6511416 | PIN, DOWELL | 6 |
| 13 | 2988 | 1290344 | SEAL, SUCTION TO DISCHARGE MODULE | 3 |
| 14 | /2930-08 | 7932009 | SEAL, WEAR PLATE - RUBBER (SEE DATASHEET FOR ALTERNATE MATERIALS) | 3 |
| 15 | Mar-77 | PZ1011WPSW | PLATE, WEAR | 3 |
| 16 | 6477 | PZ1011LC | FLANGE, LINER RETAINER | 3 |
| 17 | P-129 | 7207129 | SEAL, VALVE COVER - RUBBER (SEE DATASHEET FOR ALTERNATE MATERIALS) | 6 |
| 18 | 4018-88 | PEP73 | SCREW, VALVE GUIDE | 12 |
| 19 | 4775R | OWA17VGASW | GUIDE, VALVE (INCLUDES ITEMS 20, & 24) | 6 |
| 20 | 4675-1A | OWA17VCASSYSW | PLUG, VALVE COVER (INCLUDES ITEM 19, 20, 21, & 24) | 6 |
| 21 | 4475 | OWA17FLGSW | FLANGE, THREADED | 6 |
| 22 | 4575 | OWA17CAPSW | CAP, THREADED | 6 |
| 23 | 4700-I | PZ789VGI* | BUSHING, VALVE GUIDE | 6 |
| 24 | 4017-77 | 700044111 | CAPSCREW, SUCTION MANIFOLD | 24 |
| 25 | AJO-449R | 7916747 | GASKET, DISCHARGE MANIFOLD | 3 |
| 26 | 8014G520 | 7923283 | GASKET, SUCTION MANIFOLD | 3 |

| MISSION "L" MODULE FOR IDECO T-1300/T-1600 FLUID END MODULE & ACCESSORIES | ||||
| ITEM # | OEM PART # | MISSION PART # | DESCRIPTION | QTY PER PUMP |
| 8407-7A | FEMT1316ASSYSW | ASSY, FLUID END MODULE COMPLETE (INCLUDES ITEMS: 1 - 22) | 3 | |
| 1 | 8407-7D | FEMT1316DISSW | MODULE, DISCHARGE STUDDED (INCLUDES ITEMS 1, 3-11) | 3 |
| 2 | 8407-11S | FEMT1316SUCSW | MODULE, SUCTION STUDDED (INCLUDES ITEMS 2, 5, 6) | 3 |
| 3 | 4016-97 | OWA17DSUCSSW | STUD, DISCHARGE TO SUCTION MODULE | 18 |
| 4 | 0-7601-0630-17 | NUT, DISCHARGE TO SUCTION MODULE STUD AND POWER FRAME STUD | 18 | |
| 5 | /4015-2 | OWA17TRSSW | STUD, THREADED RING | 72 |
| 6 | 6300200 | NUT, THREADED RING STUD | 72 | |
| 7 | 4018-68 | 80711011 | STUD, POWER FRAME | 24 |
| 8 | 4017-50 | T1316DMSSW | STUD, DISCHARGE MANIFOLD | 12 |
| 9 | 0-7601-0630-24 | NUT, DISCHARGE MANIFOLD STUD | 12 | |
| 10 | /8488-5 | 6511416 | PIN, DOWELL | 6 |
| 11 | 2988 | 1290344 | SEAL, SUC TO DISCH MOD & WEAR PLATE - RUBBER (SEE DATASHEET FOR ALT MATLS) | 6 |
| 12 | /8407-10 | T1316WPSW | PLATE, LINER WEAR | 3 |
| 13 | 6407 | T1316LRFLGSW | FLANGE, LINER RETAINER | 3 |
| 14 | 6507 | T1316LLNSW | NUT, LINER LOCK | 3 |
| 15 | P-129 | 7207129 | GASKET, VALVE COVER - RUBBER (SEE DATASHEET FOR ALTERNATE MATERIALS) | 6 |
| 16 | 4016-99 | PEP73 | CAPSCREW, VALVE GUIDE | 12 |
| 17 | 4700-I | PZ789VGI* | BUSHING, VALVE GUIDE | 6 |
| 18 | 4775-2R | EMSF1000VGASW | GUIDE, VALVE (INCLUDES ITEM 18) | 6 |
| 19 | 4675-2A | EMSF1000VCASSYSW | PLUG, VALVE (INCLUDES ITEMS 17-19) | 6 |
| 20 | 4475 | OWA17FLGSW | RING, THREADED | 6 |
| 21 | 4575 | OWA17CAPSW | CAP, THREADED | 6 |
| 22 | 568-339 | 99609339 | GASKET, DISCHARGE MANIFOLD | 3 |
| 23 | 568-447 | 99609447 | GASKET, SUCTION MANIFOLD | 3 |
| 24 | 4017-59 | PEP84 | CAPSCREW, SUCTION MANIFOLD | 24 |

All our fluid end parts are manufactured to API 7K quality standards.
Parts are available for these popular pump models:
BOMCO/Emsco Mud Pumps:F2200HL, F1600HL, F-1300, F-1600, FB1300, FB1600, F-800, F-1000, F-500, F-350, DB-550, DA-700, FA-1600/1300, FC-2200, D-300/500, D-375, D-700,
LS National Mud Pumps: 3NB-500C, 3NB1000C, 3NB1300C, 3NB1600
Ideco Mud Pumps: T-500, T-800, T-1000, T-1300, T-1600,
National Mud Pumps: 7P50, 8P80, 9P100, 10P130, 12P160, N1300, C-250, K-700, 14-P-220, E-700/G-1000, K-500, K-380, K-500A/700A, C-250/350, JWS-400,
Gardner Denver Mud Pumps: PZ7, PZ8/9, PZ10/11, FK-FXK, FY-FXD, FD-FXX, FG-GXG, FG-FXG, KG-KXG, FQ-FXQ, FF-FXF, FF-FXP,
Oilwell Mud Pumps: A-560/600-PT, A-850-PT/A-1100-PT, A-1700-PT/A-1400-PT
Wirth Mud Pump: TPK1000, TPK1600, TPK 2000,TPK2200
Russian Mud Pumps: UNBT-950, UNB-600, 8T-650, UNBT650, NBT600, UNB1180, UNB1180L, NB125, NB80, NB50, NB32
WEATHERFORD/Ellis Williams: E-447, E-2200
Drillmec Mud Pump: 9T1000, 12T1600, 7TS600, 7TS500, 9T800
Romania Mud Pump: 3PN-1000, 3PN-1600, 3PN-2000
And other brand spare parts for WIRTH, OPI, Ellis Williams, Wilson, Gaso, Skytop/Brewster.

1,Plunger Size 3.38” - 4.00” Valve Part No. P107185 Seat Part No. P107802
Insert Part No. P107186 Spring
2,Plunger Size 4.50” Valve Part No. P107181 Seat Part No. P107180
Insert Part No. P107182 Spring
3,Plunger Size 5.00” - 6.00” Valve Part No. P107188 Seat Part No. P107187
Insert Part No. P107189 Spring4P102382
SPM2000
1,Plunger Size 3.75" Plunge Part No 3P103887
2,Plunger Size 4.00" Plunge Part No 3P100339
3,Plunger Size 4.50" Plunge Part No 3P100654
4,Plunger Size" 5.00" Plunge Part No 3P100233
5,Plunger Size" 5.50 Plunge Part No 3P107060
6,Plunger Size" 5.75" Plunge Part No 3P107061
7,Plunger Size 6.00 Plunge Part No 3P107062
SPM
TWS 250 Plunger Size 1.75"-3" 3.25"-4"
TWS 400 Plunger Size 2 .50"-3" 3 .50"-4 .50”
TWS 500LW-600 Plunger Size 2 .75" 3"-4 .75"
TWS 600S Plunger Size 2 .50"-3" 3.50"-4 .50"
TWS 900 Plunger Size 3.50"-4"
TWS 1250LW Plunger Size 4"
OPI880 Plunger Size 3.75" 4.00” 4.5” 5.0:” 5.50” 5.75” 6.0”
TWS1000LW,TWS1300
Plunger Size 3.75" 4.00” 4.5” 5.0:” 5.50” 5.75” 6.0” 6.5 “ 6.75”
TWS1600 Plunger Size 3.5” 3.75” 4.0” 4.50” 5.0” 5.5” 5.75 “6.0”
TWS1800 Plunger Size 3.5” 3.75” 4.0” 4.5” 5.0” 5.50” 5.75” 6.0”
TWS2250 Plunger Size 3.75” 4.0” 4.5” 5.0” 5.50” 5.75” 6.0” 6.5”
QWS 2000 Plunger Size 3.75” 4.0” 4.5” 5.0” 5.50” 5.75” 6.0” 6.5”
QWS 2500 Plunger Size 3.75” 4.0” 4.5” 5.0” 5.50” 5.75” 6.0” 6.5”
5.50” 5.75” 6.0”
TWS2250 Plunger Size 3.75” 4.0” 4.5” 5.0” 5.50” 5.75” 6.0” 6.5”
QWS 2000 Plunger Size 3.75” 4.0” 4.5” 5.0” 5.50” 5.75” 6.0” 6.5”
QWS 2500 Plunger Size 3.75” 4.0” 4.5” 5.0” 5.50” 5.75” 6.0” 6.5

Brewster ® Mud Pumps B-550 • B-750 • B-1000 • 1100T • B-1300
Continental Emsco ® Mud Pumps F-350 • F-500 • F-650 • F-800 • F-1000 • FA-1300 • FB-1600 FB1600
Gaso ® Mud Pump 1563 • 1740-55 • 1844-60 • 2010-50 • 2200-49 • 2651 • 2652
Gardner Denver ® Mud Pumps
PAH • PZ-7 PZG • PZ-8 PZH • PZ-9 PZJ • PZ-10 PZK • PZ-11 PZL
Gardner Denver ® Well Service TEE • PE-5 • PA-8 • PAH • PJ-8 • TGF-225
Gardner Denver ® Continuous Duty GD-55T • GD-60T • GD-100T • GD-125T • GD-150T • GD-180T • GD-200T
Ideco ® Mud Pumps MM-200 • MM-300 • MM-500 • MM-500F • MM-550
Ideco ® Mud Pumps MM-550F • MM-700 • MM-700F • T-500
Ideco ® Mud Pumps T-500 • T-800 • T-1000 • T-1300 • T-1600
National ® J Series Mud Pumps J-30 • J-60 • J-100 • J-165 • J-275 • J-375 • J-625 • JWS-340 • JWS-400
National ® Mud Pumps K-280 • K-380 • K-500 • K-500A • K-700A
National ® P Series Mud Pumps 7P-50 • 8P-80 • 9P-100 • 10P-130 • 12-P-160 / 12P-160 / 12P160
Oilwell ® Mud Pumps A-350-PT • 560-PT • A-560-PT • 850-PT • A-850-PT • 1100-PT
Oilwell ® Mud Pumps A-1100-PT • 1400-PT • A-1400-PT • 1700-PT • A-1700-PT / A1700-PT
Oilwell ® Plunger Pumps C-323 through B-558 • SA-640-50 through SB-644-B
OPI ® Mud Pumps 350-D • 00-DL • 700-HDL • 1000-HDL
Wheatley ® Mud Pumps 1036 • 6070 • 7024 • 7036
Fluid End Modules
National® - Oilwell® - Continental Emsco® - Gardner Denver® - Ideco® - Skytop Brewster®
Pulsation Dampener
Hydril Type "K" Pulsation Dampener
Popular Mud Pump Spare Parts

Mud Pump Manufactures and Models include:
Brewster Mud Pumps
B-550 | B-750 | B-1000 | 1100T | B-1300
Continental Emsco Mud Pumps
FF-FXF | FG-FXG (A thrugh L) | FD-FXX | FC-FXX | FD-FXD | FC-FXD | FY-FXD
Continental Emsco Mud Pumps
GP-GXP | GR-GXP | GP-GXR | GR-GXR |PA-8 | PAH
Continental Emsco Mud Pumps
PJ8 | PZ-7 | PZ-8 | PZ-9 | PZ-10 | PZ-11 | PXL
Ellis Williams (Luko) Mud Pumps
WW-440 | 14W-400 | 15W-600 | 9W-1000
Gaso Mud Pump
1563 | 1740-55 | 1844-60 | 2010-50 | 2200-49 | 2651 | 2652
Gardner Denver Mud Pumps
FF-FXF;FG-FXG;A thru L FD-FXX FC-FXX FD-FXD FC-FXD FY-FXD GP-GXP GR-GXP GP-GXR GR-GXR PA-8 PJ8 PZ-7 PZ-8 PZ-9 PZ-10 PZ-11 PXL
Ideco Mud Pumps
MM-200 | MM-300 | MM-500 | MM-500F | MM-550
Ideco Mud Pumps
MM-550F | MM-700 | MM-700F | T-500
Ideco Mud Pumps
T-800 | T-1000 | T-1300 | T-1600
National Mud Pumps
C-150 | C-250 | C-350 | E-500 | E-700 | G-700 | G-1000
National Mud Pumps
K-280 | K-380 | K-500 | K-500A | K-700A
National Mud Pumps
7P-50 | 8P-80 | 9P-100 | 10P-130 | 12P-160
Oilwell Mud Pumps
6P-HD | 610-P | 212-P | 214-P | 218-P
Oilwell Mud Pumps
350-PT | 560-PT | A-560-PT | 850-PT | A-850-PT | 1100-PT
Oilwell Mud Pumps
A-1100-PT | 1400-PT | A-1400-PT | 1700-PT | A-1700-PT
OPI Mud Pumps
350-D | 700-HDL | 1000-HDL
Wheatley Mud Pumps
1036 | 6070 | 7024 | 7036
Wilson Mud Pumps
600 | 900

The pump is compact structure, small volume, lightweight, integrated herringbone gear pair, large transmit torque and smooth run. Crankshaft is welding forged and light weight without liberation
W446 Mud Pump Single-acting Triplex Pump can be used widely in oilfield operation. Liner size from 31/4"--6" is better-adopted piston structure for workover operation and low well drilling operation while plunger structure for liner size from 2---3-1/4" for high- pressure operation.
POWER END PARTS
The Pump stand is constructed of steel plates by welding. Furthermore, because the post weld annealing treatment is applied to eliminate the internal stress, its strength is high and its steel is good. Moreover, the strengthening plate structure is adopted in the crank shaft bearing house and the main bearing house, therefore its strength is high and its steel is good.
The crank shaft is constructed of forgings in balance, and thus it is light in weight and it runs smoothly without any vibration.
The gear shaft is made of forgings of alloy steel and the herringbone gear as a whole is installed with medium hardness tooth surface gear on the shaft.
The cross head is made of ductile cast iron by entire cast which thus makes the wear-resistant good. The guide plate is formed in up- and - down structure which thus can adjust the concentricity by the gasket in the up or the down gasket.
The hydraulic cylinder is made of alloy steel cast in straight-through type and its volume small and volumetric efficiency high. Furthermore, the surface of the cylinder has been treated with chemical nickel-plating to enhance its wear-resistant.
The cylinder liners of the 446 pump have a same sized external diameter. The fasten effect is achieved by the squared cylinder liner pressing cover and the bolt pressing the hydraulic cylinder. The seal between the cylinder liner and the hydraulic cylinder is achieved by the rubber mat in rectangle.
In the lubrication system, the forced lubricating is adopted. The gear oil pump, which is installed in the oil rank, transmits the pressured oil, through lubrication lines, into the cross head guide plate and all the shafts to achieve the forced lubrication and cooling purpose.
Module Assembly
| Module Assembly | |||
| Item | Part Number | Description | Qty |
| 1 | W-446.01.017-Re | Blind Flange | 1 |
| 2 | D-440325-Re | Discharge Manifold | 1 |
| 3 | W-446.01.018-Re | 900磅级 3" Welded Flange | 1 |
| 4 | W-446.01.019-Re | Stud 1-8UNCX6 | 8 |
| 5 | SY5127 | Shim Ring R31 | 2 |
| 6 | D-440326-Re | Suction Manifold | 1 |
| 7 | GB/T 3452.1 | O-ring φ185x7 | 2 |
| 8 | W-446.01.020-Re | 150# 6" Flange | 1 |
| 9 | W0103-Re | Stud 3/4-10UNCX3 | 20 |
| 10 | W0102-Re | Nut 3/4-10UNC | 20 |
| 11 | W-446.01.21.00-Re | Suction Blind | 1 |
| 12 | W-446.01.015-Re | Pipe Plug NPT1 | 1 |
| 13 | NF2-1 | Nut 1-8UNC | 16 |
| Item | Part number | Description | Qty | Item | Part number | Description | Qty |
| 1 | B-440343-Re | Valve Cover | 2 | 17 | B-440321-Re | Valve Guide, Suction | 1 |
| 2 | B-440323-Re | Plug, Valve Cover | 1 | 18 | GB/T 3452.1-Re | O- Ring φ150x5.3 | 1 |
| 3 | W-446.01.010-Re | Seal, Valve Cover | 1 | 19 | W0101 | Stud 3/4-10UNCX1 11/16 | 4 |
| 4 | W-446.01.004-Re | Spring, Valve | 2 | 20 | W-446.01.008-Re | Seal, Liner | 1 |
| 5 | W-446.01.03.00-Re | Valve Assy(API #4) | 2 | 21 | W-446307-Re | Liner | 1 |
| 6 | W-446.01.002-Re | Seat, Valve | 2 | 22 | B-440322-Re | Liner Clamp | 1 |
| 7 | GB/T 3452.1-Re | O- Ringφ100x3.55 | 2 | 23 | W-446.01.007-Re | Self-Lock Nut | 1 |
| 8 | D-440342-Re | Valve Cover Flange | 2 | 24 | Piston | 1 | |
| 9 | D-440003-Re | Fluid End Module | 1 | 25 | GB/T 3452.1 | O- Ring φ25x3.55 | 1 |
| 10 | W-446.01.013-Re | Stud 3/4-10UNCX6 | 2 | 26 | B-440308-Re | Piston Rod | 1 |
| 11 | NF2-3/4 | Nut 3/4-10UNC-2B | 2 | 27 | W0105 | Nut 9/16-12UNC | 2 |
| 12 | GB/T 3452.1 | O-Ring φ47.5x5.3 | 1 | 28 | GB/T93 | Washer 14 | 2 |
| 13 | W-446.01.011-Re | Stud 7/8-9UNCX4 1/2 | 12 | 29 | B-440227.01 | Washer Ring | 1 |
| 14 | NF2-7/8 | Nut 7/8-9UNC | 12 | 30 | W0104 | Stud 9/16-12UNCX4 | 2 |
| 15 | B-440309-Re | Plug, Cylinder Cover | 1 | 31 | W-446.01.006 | Nut 1 1/8-8UN | 4 |
| 16 | W-446.01.001-Re | Seal, Cylinder Cover | 1 | 32 | W-446.01.005 | Stud 1 1/8-8UNX7 1/4 | 4 |
Crosshead Assembly
| Item | Part Number | Description | Qty |
| 1 | W-446.226-Re | Extension Rod | 1 |
| 2 | W-446.244-Re | Baffle | 1 |
| 3 | W-446.235-Re | Cover, Stuffing Box | 1 |
| 4 | W-446.233-Re | Stuffing Box | 1 |
| 5 | W-446.243-Re | Seal, Stuffing Box | 1 |
| 6 | W-446.228-Re | Liner, Crosshead | 2 |
| 7 | W-446.213-Re | Crosshead | 1 |
| 8 | W-446.222-Re | Retainer, Crosshead | 1 |
| 9 | W-0401-Re | Bolt 5/8-11UNCX1.575 | 2 |
| 10 | W-0402-Re | Bolt5/8-11UNCX2 | 4 |
| 11 | ¢1.5 stainless steel wire | 按需 | |
| 12 | W-0403-Re | Bolt 5/8-11UNCX1 11/16 | 4 |
| 13 | W-0404-Re | Bolt | 4 |
| 14 | W-446.04.002-Re | Seal Ring ¢13 | 4 |
| 15 | GB/T97.1-Re | Seal Ring ¢12 | 4 |
| 16 | W-0405-Re | Bolt 3/8-16UNCX11/8 | 6 |
| 17 | GB/T97.1-Re | Seal Ring ¢10 | 6 |
| 18 | W-446.04.003-Re | Seal Ring ¢10 | 6 |
| 19 | W-446.04.005-Re | Double Lip Sea Ring 3”X4”X0.5” | 2 |
| 20 | W-446.04.006-Re | Sealing Ring | 1 |
| 21 | GB3452.1-Re | O- Ring 75X5.3 | 1 |
| 22 | W-446.04.001-Re | Fastness Plate | 8 |
| 23 | W-0406-Re | Bolt 1/2-13UNCX11/2 | 8 |
| 24 | W-446.04.002-Re | Adjusting Shim | 1 |
| 25 | W-446.219-Re | Pin, Crosshead | 1 |
| 26 | W-3361-C-Re | Double Row Roller Bearing | 1 |