Fluid end: intake flange and discharge flange is strictly in accordance with ANSI and API standard. It can be interchangeable.
Power end: the tooth of the transmission gear is an involute shape, runs smoothly and has high efficiency and long lifetime. Crankshaft is integral hollow casting. The end is splash lubricated. It isn’t belong to wearing parts so it is difficult to interchangeable in generalized case.

Type:

F-series mud pumps

3NB series mud pumps

F series mud pumps are single horizontal triplex piston pumps. In the deep and ultra-deep wells, the drilling process cycle of drilling fluid, cleaning the bottom of the well to carry cuttings, cooling and lubricating bits and reinforced sidewall, used in conjunction with high pressure water jet bit rock crusher help improve drilling speed; Meanwhile, can also provide a mobile drilling mud pit as a driving force.

Specification of F series mud pumps:

Model	F-500	F-800	F-1000	F-1300	F-1600
Rating Power kV	368	588	735	956	1176
Rated speed	165 stroke/minute	150 stroke/minute	140 stroke/minute	120 stroke/minute	120 stroke/minute
Max. liner bore × stroke	Ø170×190.5	Ø170×228.6	Ø170×254	Ø180×304.8	Ø180×304.8
Suction flange	8"	10"	12"	12"	12"
Max pressure Mpa	26.77	27.26	32.85	30.6	34.3
Max Displacement L/S	36.72	41.51	43.22	50.41	50.41
Weight Kg	9300	14000	18000	23200	24000

3NB series mud pumps

3NB series mud pumps mainly include SL3NB-1600A, SL3NB-1300A, QZ3NB-1000, QZ3NB-800, QZ3NB-500, QZ3NB-350, QZ3NB-150, QZ3NB-100, QF-1600, QF-1300, QZ-9 etc specifications. The series of products are single role triplex piston pump, the feature of the design is optimized parameters, an appropriate increase of stroke, reasonable reduction in the number of conflicts, in order to improve performance pump inhalation. Shell pump power end plate welded to the structure and static finite element method on its strength and stiffness.

Specification of 3NB series mud pumps:

Model	3NB－500F	3NB－800F	3NB－1000F	3NB－1300F	3NB－1600F
Type	triplex single acting piston pump	triplex single acting piston pump	triplex single acting piston pump	triplex single acting piston pump	triplex single acting piston pump
Rated input power	373kW (500hp)	597kW (800hp)	746kW (1000hp)	969kW (1300hp)	1193kW (1600hp)
Rated speed	120 stroke/minute (120SPM)	150 stroke/minute (150SPM)	140 stroke/minute (140SPM)	120 stroke/minute (120SPM)	120 stroke/minute (120SPM)
Max. liner bore× stroke	170×229mm 6.6930″×9″	170×229mm 6.6930″×9″	170×254mm 6.6930″×10″	180×305mm 7.0867″×12″	180×305mm 7.0867″×12″
Gear type	Herringbone (double-spiral)	Herringbone (double-spiral)	Herringbone (double-spiral)	Herringbone (double-spiral)	Herringbone (double-spiral)
Gear ratio	3.962:1	4.185:1	4.207:1	4.206:1	4.206:1
Lubrication	force and splash	force and splash	force and splash	force and splash	force and splash
Suction flange	8″(203mm)	10″(254mm)	12″(305mm)	12″(305mm)	12″(305mm)
Discharge flange	103mm- 35MPa GB3165.2-82 4″- 5000psi	130mm-35MPa GB3165.2-82 5 1/8″- 5000psi	130mm-35MPa GB3165.2-82 5 1/8″- 5000psi	130mm-35MPa GB3165.2-82 5 1/8″- 5000psi	130mm-35MPa GB3165.2-82 5 1/8″- 5000psi
Pinion shaft dia. and extension	139.7×257mm 5 1/2″×10 1/8″	177.8×324mm 7″×12 3/4″	196.9×337mm 7 3/4″×13 1/4″	215.9×337mm 8 1/2″×13 1/4″	215.9×337mm 8 1/2″×13 1/4″
Key	31.75×31.75mm	44.45×44.45mm	50.8×50.8mm	50.8×50.8mm	50.8×50.8mm
	1 1/4″×1 1/4″	1 3/4″×1 3/4″	2″×2″	2″×2″	2″×2″
Valve pot	API6 ^#	API6 ^#	API6 ^#	API7 ^#	API7 ^#
	3400×1950 ×1440mm	3963×3024 ×1694mm	4269×3167 ×1818mm	4426×3260 ×2004mm	4426×3260 ×2004mm
Overall dimension	133 7/8″×76 3/4″×56 11/16″	156″×119″×66 11/16″	168″×124 5/8″×71 9/16″	174 1/4″×128 3/8″×78 7/8″	174 1/4″×128 3/8″×78 7/8″
Weight of main body	10350 kg 22818 lb	14500 kg 31967 lb	18790 kg 41425 lb	24532 kg 54084 lb	24715 kg 54487 lb

Over a 1,000,000 of interchange able mud pump parts are made or in stock for all major manufacturers( EMSCO, Gardner-Denver, National, OILWELL, IDECO, Skytop /Brewster, OPI, Wirth, Wilson, GASO) such as : mud pump liners, mud pump pistons, triples signal action pistons, piston rods and clamps, pony rods, threaded rings and caps, valve guides, liner packing cage assemblies, duplex pump spares and duplex mud pump parts, triplex pump spares and triplex mud pump, piston rods, gland brass and junk rings, full open valves and valve seats, web valves and web valve seats, stuffing box and gland nut, and mud pup gasket and mud pump rubbers etc.

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