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Ewco/Lewco EWS446 Triplex Piston Pump for Oilfield Well Service

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Ewco/Lewco EWS446 Triplex Piston Pump for Oilfield Well Service

China Ewco/Lewco EWS446 Triplex Piston  Pump for Oilfield Well Service supplier
Ewco/Lewco EWS446 Triplex Piston  Pump for Oilfield Well Service supplier Ewco/Lewco EWS446 Triplex Piston  Pump for Oilfield Well Service supplier Ewco/Lewco EWS446 Triplex Piston  Pump for Oilfield Well Service supplier

Large Image :  Ewco/Lewco EWS446 Triplex Piston Pump for Oilfield Well Service

Product Details:

Place of Origin: China
Brand Name: Ewco/Lewco
Model Number: EWS446

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Price: USD 30000-400000/set
Packaging Details: 20 feet container
Delivery Time: 25 days
Payment Terms: T/T
Supply Ability: 5 sets/month
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Detailed Product Description
Type: Triplex Piston Pump Work Pressure: 20MPa-35Mpa
Color: As Required Delivery: FOB QINGDAO SEA PORT

 

 

Mechanical Efficiency η=90%,Fill factor α=100%,Volumetric Efficiency:100%

ELW-440/446 Pump can be widely used in all kinds of works in oil field. When the cylinder liner specification is 6”-3 1/2”, piston structure is recommended and it is suitable for Oil-Well Repair and shallow-well drilling, etc. When the cylinder liner specification is 3 1/4”-2”, axial piston structure is recommended and it is suitable for high-pressure work.

ELW446 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
Weight 4463 kg

Liner Size, inches 6 5-1/2 5 4-1/2 4 3-1/2
Rated Pressure, psi 1,027 1,222 1,479 1,710 2,169 2,816
Pump Speed
SPM
Input Power
HP
Displacement, GPM
320 440 661 555 459 397 313 240
270 380 551 463 382 335 264 202
220 320 441 370 306 273 215 165
170 260 330 278 229 211 167 127
120 200 220 185 153 149 118 90
70 200 110 93 76 87 69 52
Volume/Stroke, gallons 2.203 1.851 1.530 1.239 0.979 0.750

Ewco/Lewco EWS446 Triplex Piston  Pump for Oilfield Well Service

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 W440/446 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.

 

Contact Details
Gaomi Eastland Oilwell Machinery Co.,Ltd

Contact Person: Mr. Tony Zhao

Tel: 86-536-2128510

Fax: 86-536-2128510

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