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Model 70200

Model 70200, the workhorse of our progressing cavity pump line, is ideal for handling a wide variety of materials which are often considered unpumpable. The 70200 offers the most economical solution for tough pumping problems like highly viscous, abrasive, shear sensitive, or solid-containing materials.
A hardened steel pin joint drive system in steel construction and a corrosion-resistant 316 stainless steel pin in stainless construction mean durability and ease of maintenance. Roper's pin joint design has few wearing parts so you get long, trouble-free performance. And when service is necessary, you can count on simple, low-cost repairs so you save money and time.
The 70200 is available in a full range of sizes in one-, two-, and three-stage pumps to suit a wide variety of applications.

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Models 70300 – 70600 

Sometimes you need a pump that can handle higher pressures or offer even longer life than the 70200 model. Applications like this call for 70300 or 70600 pumps which feature drive ends larger than that in the 70200. For the 70300 the next larger drive end is used with the standard elements. In the 70600 series a drive end two sizes larger than that in the 70200 is used. Both the 70300 and 70600 give you an increased pin area for longer pump life and higher torques.
As a result, either model can handle high-pressure spraying, chemical injection into high-pressure lines and applications involving pressures above 225 psi. The 70300 series also allows you to use our stainless steel pumps, normally rated to 75 psi and 600 RPM, in applications which call for their full element ratings. Standard pumps offered in the 70300 series are three-, four- and six-stage pumps.

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The most demanding jobs demand the 70400 model. Our 70400 series pump is designed and built for special applications where joint life is most critical. A crowned gear joint, sealed against pump age, provides a drive system with a greater wear area than the standard 70200 series for the ultimate in joint life.
Its construction makes this gear joint pump ideal for applications where a longer maintenance interval is desired, when accessibility to the pump is limited or where downtime must be kept to a minimum. Also, because the 70400 series gear joint pump comes standard with large clean-out ports, large objects can be removed from the suction housing without dismantling the pump.
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Model 70500

Its solid drive shaft makes the 70500 the pump of choice for handling anything with a tendency to set up — and eventually build up — in a hollow-shaft model. That includes thermosetting adhesives, concrete, grout, plaster and other materials which have the potential to harden inside the shaft. When these materials are allowed to build up and harden, they inhibit free movement of the connecting rod, resulting in connecting rod breakage.
In designing the 70500, Roper Pump Company engineers moved the pin joint connection from the middle of the drive shaft out to the end. So the entire connecting rod is located within the suction housing where material can be easily flushed.

Image  Models 70300 – 70600

Sometimes you need a pump that can handle higher pressures or offer even longer life than the 70200 model. Applications like this call for 70300 or 70600 pumps which feature drive ends larger than that in the 70200. For the 70300 the next larger drive end is used with the standard elements. In the 70600 series a drive end two sizes larger than that in the 70200 is used. Both the 70300 and 70600 give you an increased pin area for longer pump life and higher torques.
As a result, either model can handle high-pressure spraying, chemical injection into high-pressure lines and applications involving pressures above 225 psi. The 70300 series also allows you to use our stainless steel pumps, normally rated to 75 psi and 600 RPM, in applications which call for their full element ratings. Standard pumps offered in the 70300 series are three-, four- and six-stage pumps.
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Model 70700

If you're faced with pumping extremely high viscosity or semidry materials that won't flow easily through a standard suction port, you'll be interested in the 70700 series of hopper feed progressing cavity pumps. The 70700 replaces the standard suction housing and circular ANSI flanges with a large rectangular hopper with sloped sides to facilitate material movement into the pump. The extra-large hopper is designed to accommodate extremely thick or dry materials that have a tendency to bridge with other manufacturers' pumps. Therefore, with the Roper 70700, a bridge breaker is normally not necessary.

From the hopper, materials are simply auger-fed to the pumping elements by a specially designed flighted connecting rod which replaces the connecting rod normally found in standard progressing cavity pumps.
So fluids that won't flow through a standard flange — including heavy slurries, filter cake and greases — will move steadily and reliably through the 70700 pump from Roper.

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