Roper® 70700 Hopper Pump Parts
Hopper-feed progressive cavity pump replacement parts
The Roper® 70700 family is the hopper configuration within Roper®’s conventional elastomer-lined progressive cavity pump nomenclature. ACCA Pumps supports aftermarket replacement components and technical identification for applicable hopper-feed configurations handling difficult-to-feed, viscous and solids-bearing materials.
Roper® 70700 Hopper Configuration
Roper®’s conventional progressive-cavity nomenclature identifies drive/configuration digit 7 as Hopper. The hopper arrangement is distinct from the standard pin-joint, oversized pin-joint, gear-joint and solid-drive configurations, so service parts should be identified from the complete pump figure rather than inferred from displacement alone.
Large Inlet Area
The hopper configuration is intended to improve feeding of viscous, solids-bearing and difficult-to-flow materials into the progressive cavity pumping element.
Positive-Displacement Element
The rotor and elastomer-lined stator provide continuous progressive-cavity displacement once material enters the pumping element.
Configuration-Specific Drive Parts
Hopper-body, connecting-rod and drive components must be matched to the installed 70700 figure, construction and serial information.
How to Identify a Roper® 70700 Pump
| Figure Position | Meaning |
|---|---|
| First digit: 7 | Traditional rubber-lined Roper® progressive cavity pump series. |
| Second digit | Number of pumping stages. |
| Third digit: 7 | Hopper configuration. |
| Remaining displacement digits | Approximate theoretical displacement reference; do not use the figure number to derive performance or construct a pump. |
| Material code | Identifies pump-body, internal and stator materials. |
Roper® 70700 Replacement Parts Available
Rotors
Model-, stage- and construction-specific rotors for supported hopper pumping elements.
Stators
NBR, natural rubber, EPDM, FKM and other documented elastomer constructions where applicable.
Hopper & Inlet Components
Hopper-feed body and inlet components identified from the complete installed pump configuration.
Connecting Rod Components
Connecting rods, pins, bushings and related feed/drive hardware for supported configurations.
Drive-End Components
Drive shafts, bearings, seals, packing and associated overhaul components where documented.
Service Hardware
Retainers, washers, spacers, keys, gaskets and other configuration-specific repair items.
Applications for Hopper-Feed Progressive Cavity Pumps
High-Viscosity Materials
Materials that do not readily flow into a conventional suction connection.
Solids-Bearing Products
Process streams containing suspended solids or semi-solid material requiring positive feed into the pumping element.
Industrial Process Transfer
Low-pulsation positive-displacement transfer where product consistency makes conventional inlet feeding difficult.
Before You Order Roper® 70700 Parts
Use the complete Roper® identification
Roper® specifically cautions that not all theoretical figure-number combinations are possible. Provide the Figure, Spec, Serial and Type numbers whenever available, together with existing part numbers and photographs. ACCA will use those identifiers to determine the applicable hopper, drive-end and pumping-element components.
Progressive Cavity Engineering Note — Inlet Feeding
A progressive cavity pumping element can only deliver the fluid that reaches its cavities. Highly viscous, solids-rich or semi-dry products may require improved inlet feeding so the rotor and stator remain filled and the pump avoids starvation or dry-running damage.
Frequently Asked Questions
What does the 7 configuration digit mean on a Roper® progressive cavity pump?
Roper®’s conventional progressive-cavity nomenclature identifies configuration digit 7 as Hopper.
Is every possible 707xx number a valid Roper® model?
No. Roper® explicitly warns that not all nomenclature combinations are possible. Model existence and parts selection should be verified from the complete pump identification.
Why use a hopper-feed progressive cavity pump?
A hopper arrangement can improve inlet feeding when the pumped material is highly viscous, contains solids or otherwise does not flow easily into a conventional suction connection.
What information should I send for replacement-part identification?
Send the complete Roper® Figure, Spec, Serial and Type numbers, plus existing part numbers, material information and photographs when available.
Related Roper® Progressive Cavity Pump Parts
Roper® 70200 Parts
Standard pin-joint progressive cavity pump parts.
Roper® 70400 Parts
Crowned gear-joint and SWG-related service parts.
Roper® Pump Parts
Return to the complete Roper® replacement-parts hub.
Related Roper Pump Parts
Need Roper® 70700 Hopper Pump Parts?
Send the complete pump identification and the components you need. ACCA can help identify the correct aftermarket replacement parts.