API 674 Duplex Double Acting Piston Pumps - DFX Series

Dynapro Pumps DFX-Series are duplex double acting piston pumps, horizontal, reciprocating, power unit types; applications for oilfield services including hydrocarbon transfer, sludge transfer, mud transfer, well drilling services, and related applications; designed in compliance with API 674, Latest Edition.

Design Features and Benefits

Power End Frame
. Gray cast iron one piece construction for added strength and durability
. Symmetrical design allows for left-hand or right-hand drive and easy conversion
. Versatile design accepts V-belt, chain, gear, or clutch drive trains.

. High strength forging steel construction is standard; forged alloy steel is available for special applications
. Designed for use with tapered roller bearings to carry higher crankshaft/rod loads.

. Circular full piston type crossheads evenly distribute rod load to power frame
. Polished stainless steel crosshead stubs for long seal life
. Double sealed crosshead stub seals to prevent oil loss and oil contamination
. Crosshead extensions connect to plungers outside of power frame for easier maintenance.

Connecting Rod
. High strength cast steel construction
. Precision automotive type Babbitt lined journal bearings

. Splash and gravity lubrication promotes lubrication to all moving parts, keeping the oil constantly circulated and cooled
. Oil sight gauge allows quick convenient observation of power end oil level when running or idle.

Fluid Cylinder
. Heat-treated alloy steel material; interchangeable
. API-Series urethane insert valves and seats
. Threaded valve covers
. Plated piston rods.

Performance Envelope-
Design Standard – API 674, Latest Edition.
Design Pressure Rating – Up to 80 barg (1160 psig).
Temperature Rating – Up to 80 °C (176 °F).
Flowrate – Up to 150 m³/h (660 USgpm).