Viscous Fluid Pumps | Gear & Progressive Cavity Pumps

We'll keep things flowing

Viscous fluid pumps are used across various industries where thick or semi-solid materials need to be transferred, mixed, or processed efficiently.

Selecting the right pump is crucial for maintaining flow efficiency, preventing clogging, and reducing wear. Prime Fluid Management supplies a range of pump types and models from, recognised manufacturers, to ensure we meet your unique industrial requirements.

Gear Pumps

Shifting oils, polymers and adhesives

Gear pumps work when two interlocking gears rotate to move fluid. They suit medium- to high-viscosity fluids, including oils, polymers, and adhesives.

High-pressure capability with precise dosing.
Compact and efficient for lubricating or non-abrasive viscous fluids.
Self-priming, positive displacement
Our brands: GVR Pumps

Progressive Cavity Pumps

Handling extreme viscosity

Progressive Cavity, or PC, pumps have a helical rotor that moves through a series of small chambers, maintaining consistent, low-pulsation flow.

Handles sludges, pastes, and solids-laden fluids
Low shear, ideal for fragile or shear-sensitive materials
Self-priming and highly efficient for high-viscosity applications
Our brands: Wangen

Overview of our Viscous Fluid Pumps

Wangen Hopper Feed PC

Wangen produces an extensive range of hopper feed pumps for slurries and pastes with high solids content (KL-R Series) and dewatered sludge (KL-RU, KL-RQ, KL-RS and KL-R Triplex models).

Max flow: 160m³/hr
Max pressure: 48 bar
Max solids: 45%
For extremely dry or lumpy material

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Wangen Self-Priming PC Pumps with X-LIFT The Wangen Xpress with X-LIFT ensures quick-change of the rotor and stator and reliable conveyance of digested sludge and low viscous media.

Max flow: 102m³/hr
Max pressure: 6 Bar
Max Dry Solids: 8%
Compact and designed for hard to access locations

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GVR External Gear

Positive-displacement pumps that transfer medium-high viscosity fluids with minimal lubricating properties and no suspended solids.

Max flow: 800L/min
Max pressure: 25bar
Max viscosity: 20,000 cSt
Material : cast iron, PTFE bronze, 316 s/s

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Wangen Self-Priming PC Pumps

Wangen's KL-S, KB-S and KB22S self-priming PC pumps convey high viscous media up to 200,000mPA-s with or without solids. The KB22S is designed specifically for dosing.

Max Flow: 560 m3/hr
Max Pressure: 48 bar
Materials: S/steel, cast iron

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Varisco Internal Gear Pumps

Varisco V-Series volumetric internal gear positive displacement rotary pumps manage clean fluids with high viscosity where chemical-physical alteration must be avoided.

Max capacity: 240m3/h
Max pressure: 16 bar
Ports: 40-200mm
Std Set ups: bare shaft, base+joint, vertical

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Wangen Hyline PC Pumps

The Hyline Series by Wangen features flexible and maintenance-free joints, and sedimentation-free design. Convey or dose food and beverages, cosmetics and pharmaceuticals.

Max flow: 7m3/hr
Max pressure: 20 bar
Max solids: 26mm

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High Pressure Hygenic PC

Available as a mobile or stationery unit, the MX-series hygienic progressive cavity pump offers differential pressure up to 80 bar.

Max flow: 100m3/hr
Max pressure: 80 bar
CIP/SIP cleaning possible

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Wangen Twin Screw

Wangen Twin Screw pumps ensure smooth, gentle pumping of viscous, abrasive or shear-sensitive fluids, with CIP/SIP cleaning and minimal downtime.

Max flow: 200 m3/hr
Max pressure: 30 bar
Max solids: 40mm

VIew Brochure

Wangen Vario Twin Screw

A patented feeder unit for the Wangen Twin Screw pump. Conveys highly viscous, non-flowable media with variable hopper length.

Max flow: 10 m3/hr
Max temp: 90°C
Max viscosity: 3,000,000 mPa-s

VIew Brochure

Wangen PC Immersion Pumps

Wangen KL-T Series Progressive Cavity Immersion pumps safely convey media from tanks and pools with high metering accuracy even at low rpm.

Max Flow: 102m³/hr
Max Pressure: 6 bar
Max viscosity: 200,000 mPA-s
Max Dry Solids: 16%

View Brochure

Wangen Progressive Cavity PTO Pumps

Designed for agricultural use, Wangen’s PTO shaft pumps vacuum-load, unload and distribute tank manure supplies, or convey liquid feed.

High suction power
Insensitive to foreign bodies
Max flow: 470m³/hr
Max pressure: 16 Bar

View Brochure

GALLERY

In the field

Here are some examples of our solutions being used.

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They brought their mechanics, they didn't just dump it and leave….couldn't have done it without them to be honest

Mark CadwalladerCatchment Worker

This sort of unique system you set up is what sets you apart from others in the Market

Jacob Warmsley Project Manager

I had an amazing experience with Prime Pump at the Transmission Gully ... will recommend you guys anytime and anywhere.

Peter FisherDirector

You guys had our backs from the get-go and stood beside us and persevered.

DaveOps Director

We called for a different type of solution…... We were pretty happy with what's been delivered

Rob KerrProject Director

Prime supplied us with the best solution for hire and the instant availability was what we needed… We certainly will be using them in the future

Priscilla EllmersWastewater Supervisor

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Tony Hylands
Industrial Pumping Solutions

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Kobus van der Merwe
Industrial Sales Engineer

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Charlie Petrie
Sales Manager

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Questions

FAQ

At Prime Fluid Management, we understand that every fluid management challenge brings unique considerations. Here, you’ll find clear, practical answers and expert guidance to help you maximise uptime, achieve regulatory compliance, extend equipment life, and implement the most effective solution for your site.

Is an auto-prime pump the same as a “dry prime” or dry-prime dewatering pump?

On a lot of drawings and pump schedules, dry-prime pump or dry-prime dewatering pump is used as shorthand for a surface pump that can handle air and doesn’t need manual priming. In practice, the auto-prime units that Prime Fluid supplies are vacuum-assisted pumps with a dedicated priming system, so they meet the intent of most “dry prime” specs while giving you a modern, quieter and more efficient package.

When would I use auto-prime dewatering pumps instead of a self-priming dewatering pump or submersible?

Auto-prime units are usually the better option when the pump has to sit above the water, suction conditions might change, or you expect a lot of air to enter the line during setup and operation. A self-priming dewatering pump or submersible can still be the right choice on simpler, more static jobs, and Prime can talk you through which option will be more reliable and cost-effective for your site.

Do you supply diesel dewatering pumps and can they be automated?

Yes – Prime can supply auto-prime packages as diesel dewatering pump sets or electric sets, depending on what power you have available and how the system will run. With the right control panel and level sensors, those same units can be configured as an automated pump or “auto water pump” that starts and stops itself, which is helpful on remote or 24/7 sites where you don’t want someone constantly watching the pump.

Can Auto-prime Pumps be used for flood control and emergency response?

Auto-prime units are a good fit for temporary flood control pumps because they can be moved quickly, cope with long suction and discharge lines, and re-prime themselves as water levels change. Prime Fluid can set up high-flow Auto-prime Pump solutions for New Zealand councils and contractors that form part of a wider flood or stormwater contingency plan.

What information do you need to size the right Auto-Prime Pump in New Zealand?

To match an Auto-Prime Pump New Zealand job, one of our sales engineers will usually ask for your required flow, total dynamic head, suction depth, discharge route, expected solids size and how long the pump needs to run. If your documents mention terms like autoprime dewatering pumps, auto vacuum pump or use a generic “dry prime” note, sending those details through with a simple sketch of the setup helps the team recommend the most suitable package for your project.

Viscous Fluids Pumps

We'll keep things flowing

Shifting oils, polymers and adhesives

Handling extreme viscosity

Overview of our Viscous Fluid Pumps

In the field

Read Dewatering, Bypass & Sewage articles

Download the Civil, Quarrying & Mining Product Guide 2026

See other Dewatering, Bypass & Sewage Pumps

They brought their mechanics, they didn't just dump it and leave….couldn't have done it without them to be honest

This sort of unique system you set up is what sets you apart from others in the Market

I had an amazing experience with Prime Pump at the Transmission Gully ... will recommend you guys anytime and anywhere.

You guys had our backs from the get-go and stood beside us and persevered.

We called for a different type of solution…... We were pretty happy with what's been delivered

Prime supplied us with the best solution for hire and the instant availability was what we needed… We certainly will be using them in the future

Make an enquiry

Let’s sort your fluid management needs
Speak to an expert

FAQ

Find your local expert

Solutions

Resources

Company

Locations

Contact Us

Find us on

Sign up to news

Equipment • Expertise • Results

Viscous Fluids Pumps

We'll keep things flowing

Shifting oils, polymers and adhesives

Handling extreme viscosity

Overview of our Viscous Fluid Pumps

In the field

Read Dewatering, Bypass & Sewage articles

Download the Civil, Quarrying & Mining Product Guide 2026

See other Dewatering, Bypass & Sewage Pumps

wellpointing piston pumps and dewatering solutions

Drainage Submersibles

High Head Pumps

Handy, Trash, Diaphragm Pumps

Auto-prime Pumps

Dewatering dredge Pumps

They brought their mechanics, they didn't just dump it and leave….couldn't have done it without them to be honest

This sort of unique system you set up is what sets you apart from others in the Market

I had an amazing experience with Prime Pump at the Transmission Gully ... will recommend you guys anytime and anywhere.

You guys had our backs from the get-go and stood beside us and persevered.

We called for a different type of solution…... We were pretty happy with what's been delivered

Prime supplied us with the best solution for hire and the instant availability was what we needed… We certainly will be using them in the future

Make an enquiry

Let’s sort your fluid management needs Speak to an expert

FAQ

Find your local expert

Solutions

Resources

Company

Locations

Contact Us

Find us on

Sign up to news

Equipment • Expertise • Results

Let’s sort your fluid management needs
Speak to an expert