Viscous Fluid 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

Let’s sort your fluid management needs
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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.

Do you supply oil transfer pumps that can meet API 676 requirements?

Some positive displacement internal gear pump ranges are manufactured to API 676, with specific exceptions depending on the model. If API 676 compliance is part of your specification, we can confirm suitability during selection and provide the relevant documentation.

What’s the best oil transfer pump in NZ for diesel, fuel oil, or lubricating oil?

The best option depends on viscosity, temperature, and whether you need steady metered flow or high throughput transfer. For many industrial oils and fuels, internal gear and external gear pumps are common choices because they provide consistent flow and handle higher viscosity fluids well.

Can these pumps be specified for hazardous areas?

Yes, hazardous area options may be available depending on the selected pump and motor package. For example, some equipment ranges offer certified IECEx hazardous area rated configurations, which can be specified when the site classification requires it – including suitable options for Zone 1 and Zone 2 hazardous areas.

Do you need flooded suction, or can the pump run on suction lift and self priming?

It depends on the fluid, temperature, viscosity, and how the tank and pipework are laid out. A flooded suction setup is usually the most stable option for consistent performance, especially with higher viscosity oils, because the pump is always supplied with product.

If the pump needs to draw from a lower level or from a longer suction line, suction lift and self priming capability become important. However, the setup needs to be sized correctly to avoid issues like poor priming, air ingress, or cavitation. If you share your suction conditions and duty point, we can recommend a pump type and configuration that suits the installation.

What features help protect the pump and improve reliability on fuel and oil duties?

For fuel and oil applications, reliability often comes down to protecting the pump from pressure spikes and contamination, and selecting the right sealing arrangement. Depending on the pump type and duty, options can include an internal relief or bypass valve to protect against dead heading, and an inline suction strainer to reduce the risk of damage from debris.

Seal selection also matters for demanding services, with configurations such as double mechanical seals used on certain duties where additional containment or reliability is required. We can guide you on what features make sense based on the product, operating conditions, and site requirements.

What information do you need to specify a fuel transfer pump in NZ?

To specify the right fuel transfer pump for a New Zealand site, we typically need the fuel type, required flow rate, temperature, and viscosity, along with suction conditions such as flooded suction or suction lift.

Once we have those details, we can confirm the most suitable pump type and configuration for your application – including options for heavier fuels where viscosity is higher.

Viscous Fluids Pumps

We'll keep things flowing

Shifting oils, polymers and adhesives

Handling extreme viscosity

Overview of our Viscous Fluid Pumps

Questions? Specs? Talk to one of our Industrial Specialists today.

See other Industrial Pumps

Read Industrial Articles

In the field

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

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Viscous Fluids Pumps

We'll keep things flowing

Shifting oils, polymers and adhesives

Handling extreme viscosity

Overview of our Viscous Fluid Pumps

Questions? Specs? Talk to one of our Industrial Specialists today.

See other Industrial Pumps

Industrial Chemical Pumps

Crest Vertical Immersion Pumps

GVR External Gear Pumps

Industrial Side Channel Pumps

Fuel and Oil Pumps for Transfer and Industrial Duties

Self-Priming Centrifugal Pumps

Hot Oil Pumps

Food Processing Pumps

Hygienic Progressive Cavity Pumps

Hot Water Pumps

Multistage Pumps

Hygienic Pumps

Marine Pumps

Solids Handling Pumps & Stirrers