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Mud Pump for Oilfield Drilling, F and 3nb Series

Product Description

Design features:
The power end of mud pump: The housing is welded steel-plate construction. It is stress-relieved after welding. The drive gears ate in volute type gears which allow smooth operation, high efficiency and long life. The crankshaft is a hollow one-piece steel casting. The power end is splash-Lubricate.
The fluid end of mud pump: The suction and the discharge flanges conform to ASA and API specification.
The piston rod of mud pump is connected with an intermediate rod by means of clamps to realize quick assembly & disassembly.
The valve seat bores of mud pump have a bottom shoulders. The pistons and loners are lubricated and cooled by an independently spraying pump to have a longer service life.
The frame is of welded-steel pale construction, with characteristics of high strength, good rigidity and light weight due to internal stress eliminating treatment after being welded.
Integral herringbone gear drive of mud pump is adopted for smooth running, high efficiency and long operating life. The crank shaft is alloy steel castings.
Double-deck sealing is adopted in intermediate pull rod with sound sealing effect.
The power end of mud pump adopts the lubricating method of forced lubrication combined with splash lubrication.
Fluid end:
The hydraulic cylinder material is alloy steel forging. Straightway hydraulic cylinder has good suction performance.
Suction valve and discharge valve on F series pump are interchangeable.
Pump F-500 uses API 5# valve; Pump F-800 and F-1000 use API 6# valve; Pump F-1600 uses API 7# valve.
Model F-500 F-800 F-1000 F-1300 F-1600
Power  kw(ps) 373(500) 597(800) 746(1000) 969(1300) 1193(1600)
Strokes per minutes  pm 165 150 140 120 120
Stroke  mm 190.5(7.5″) 229 (9″) 254 (10″) 305 (12″) 305 (12″)
Gear ratio 4.286:1 4.185:1 4.207:1 4.206:1 4.206:1
Max. working pressure   Mpa 34.5 34.5 34.5 34.5 34.5
Max. Dia. of liner  mm 170 170 170 180 180
Dia. Of suction pipe  mm 203 254 305 305 305
Dia. Of discharge pipe in 4 5-1/8 5-1/8 5 5
Weight  kg 9543 14000 18642 24572 24791
 
Model 3NB500C 3NB1000C 3NB1300C 3NB1600/LN1600H
Power KW(PS) 368(500) 735(1000) 956(1300) 956(1300)
Strokes per minute pm 95 110 120 120
Stroke mm 254 305 305 305
Gear ratio 3.82 3.833 3.81 3.81 3.89
Speed of driving shaft r/min 363 423 457 457 467
Max. working pressure Mpa 30 35 35 35 51.7
Max. dia. Of liner mm 160 170 180 190
Dia. Of suction pipe mm 254 305 305 305
Dia. Of discharge pipe mm 100 100 100 100
Overall dim. mm(L*W*H) 4220×2640×2430 5170×2809×2530 5010×1942×1918 4450×2850×2077 5000×2850×2090
Weight kg 15940 21450 23000 29700 28345

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