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PHONE HOTLINE:
0800 482 747
E-MAIL:
info@primefluid.co.nz
Contact
PHONE HOTLINE:
0800 482 747
E-MAIL:
info@primefluid.co.nz
Contact

Solutions 
Dewatering, Bypass & Sewage
Effluent Management
Industrial
Sludge & Slurry
Stormwater/Flooding
Wastewater Treatment
Water Treatment

Popular
Dewatering, Bypass & Sewage
Piston Pumps NEW
Water Quality Monitoring

 

 

Pump Types
Auto Prime
Air-operated
Concrete Washdown
Dredge Pumps - Dewatering
Dredge Pumps - Sludge & Slurry
Dredges
Flexi, Trash & Diaphragm
High Head Pumps
Handy-sized Pumps
Lamella Settling Tanks
Peristaltic 
pH Correction
Piston Pumps
PTO (auto prime)

Agri Pumps

Centrifugal
Primary Sludge
Progressive Cavity
Shore-mounted
Stirrers
Submersibles


Proportional Dosing
Settling Tanks & Bag
Submersibles - Drainage
Submersibles - Slurry & Sludge
Stirrers - WWTP
Trash, Flexi & Diaphragm
Water Quality Monitoring
Wellpointing

Stormwater

Flood Response
Pump Stations

Industrial

Chemicals
Food Processing
Fuels & Oils
Hot Oil
Hot Water
Hygienic
Marine
Solids Handling Pumps
Vacuum & Blowing
Viscous Fluids Pumps
Wastewater

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Discharge Compliance

Comprehensive water treatment and monitoring solutions

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0800 482 747

Solids Handling Pumps & Stirrers

Make light work of thick, fibrous, high-solids pumping.

    Reduce clogging and wear

    Solids handling pumps are designed to move fibrous, thick, and grit-laden materials without clogging or excessive wear. Different pump types achieve this through specialised designs:

    • Vortex Pumps: Use a recessed impeller to create a vortex, allowing solids to pass with minimal contact, reducing wear.
    • Progressive Cavity Pumps: Utilise a helical rotor-stator system to move thick, shear-sensitive materials like sludge and food waste.
    • Self-Priming Centrifugal Pumps: Handle solids while allowing easy re-priming, making them ideal for intermittent operation in wastewater and industrial drainage.
    • Twin Screw Pumps: Offer smooth, pulsation-free flow, ideal for viscous and shear-sensitive fluids in food processing and chemical industries.
    Prime Fluid Management can recommend the solids-handling pump or stirrer to best meet your needs. Take a look at our range below.
    SolidsPro

    Pumps for tough media

    SolidsPro vortex submersible pumps handle solids, slurries, and fibrous materials with minimal clogging. Their recessed impeller reduces wear, making them ideal for wastewater, mining, and industrial applications.

    • Pumps large solids without clogging
    • Reduced wear for longer pump life
    • Reliable in harsh environments
    • Low maintenance with fewer blockages

    Built for efficiency and durability, SolidsPro vortex pumps offer a dependable solution for challenging media.
    Pumps for tough media
    Wangen Progressive Cavity Pumps

    Making light work of extreme viscosity

    Wangen progressive cavity pumps are known for their, proven reliability in extreme applications, precision-engineered components, and ability to maintain flow integrity in challenging conditions.

    • Continuous, low-pulsation flow
    • Extreme longevity, under the most demanding industrial conditions
    • Customisable
    Low energy costs, reduced downtime and maintenance.
    Making light work of extreme viscosity

    Overview of our Solids Handling Pumps & Stirrers

    Caffini Electric Diaphragm Pumps

    Designed for high flow, low pressure situations where transfer of thick slurries is required.

    • Size: 50mm - 152mm
    • Max Flow: 830L/min
    • Max Head: 15m
    • Max Solids: 60mm
    View brochure
    Caffini Petrol Diaphragm Pumps

    Designed for high flow, low pressure situations where transfer of thick slurries is required.

    • Size: 50mm - 102mm
    • Max flow: 520L/min
    • Max head: 15m
    • Max Solids: 60mm
    View brochure
    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
    View Brochure
    Proril Cutter Sewage Submersibles Featuring a chopper plate and tungsten carbide alloy tips the Proril GoCut Cutter series handles raw sewage, shredding fibrous materials to prevent clogging.
    • Size: 50mm –102mm (2” – 4”)
    • Max flow: 22L/sec
    • Max head: 20m
    • Max solids: 37mm
    Vortex Sewage Submersibles Proril GOVOX series vortex sewage submersibles transfer large solids and fibrous matter without obstruction.
    They offer low impeller wear and long pump life.
    • Size: 50mm –102mm (2” – 4”)
    • Max flow: 28L/sec
    • Max head: 34m
    • Max solids: 55mm
    Proril Single Channel Sewage Submersibles Proril GOMAX series submersible pumps use a single-channel enclosed impeller with air-release valve for highly efficient, non-clogging sewage transfer.

    • Size: 76mm – 152mm (3” – 6”)
    • Max flow: 100L/sec
    • Max head: 42m
    • Max solids: 76mm
    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
    View Brochure
    Wangen Hygienic PC Pumps

    Wangen’s KB-SL, KL-SL and KL-RF hygienic progressive cavity pumps are tailored to convey low to very high viscosity media.

    • Max flow: 150m3/hr
    • Max temp.: 140°C
    • Max pressure: 48 bar
    • Max viscosity: 200,000 mPa-s
    View all
    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
    Varisco Self-Priming Centrifugal Pumps

    Varisco J-Series pumps suit applications that require fast priming from demanding suction heights, and the ability to manage polluted, waste and abrasive fluids with suspended solids.

    • Max flow: 1200m3/hr
    • Max head: 110m
    • Max solids: 76mm
    • Self-priming 7.5m
    View All
    SolidsPro Stirrers

    SolidsPro stirrers are used to ensure uniform mixing in waste liquids with solids present, to prevent sedimentation and enhance biological or chemical reactions. Commonly used to agitate dairy effluent storage sumps/tanks & ponds to prevent solids from settling out.

    • Cast AISI 316 S/Steel Propellor
    • AISI 304 S/Steel mounting brackets
    • Self-cleaning blades
    • Double mechanical seal in oil bath
    View Brochure
    SolidsPro Vortex Submersibles

    Engineered to resist clogging SolidsPro vortex submersibles feature recessed impellers with large free passage. Ideally suited to pumping large volumes of waste fluids where solids or particle are present.

    • Max flow: 103m3/hr
    • Max head: 20m
    • Max solids: 80mm
    • Humidity probe: yes
    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
    LJM Submersible Cutter/Shredder LJM (Lind Jensen) dry mounted slurry pumps offer durable, reliable performance with built-in shredders for the fine shredding of straw and feed residues, ideal for liquid manure with very high dry solid content.

    • Available Sizes: 5.5 kW to 18.5 kW.
    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
    Varisco Self-Priming Centrifugal Pumps

    Varisco J-Series pumps suit applications that require fast priming from demanding suction heights, and the ability to manage polluted, waste and abrasive fluids with suspended solids.

    • Max flow: 1200m3/hr
    • Max head: 110m
    • Max solids: 76mm
    • Self-priming 7.5m
    View All
    Varisco Self-Priming Centrifugal Trash Pumps

    Varisco ST-R Series pumps are built for handling solids-laden, abrasive fluids in demanding environments. Designed for dry-mounted setups, they offer fast priming and easy access for in-field maintenance.

    • Max flow: 420 m³/hr
    • Max head: 35 m
    • Max solids: 76 mm
    • Self-priming: 7.5 m
    View Brochure

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

    0800 482 747
    GALLERY

    In the field

    Here are some examples of our solutions being used.

    Talk to us today

    Read Dewatering, Bypass & Sewage articles

    See other Dewatering, Bypass & Sewage Pumps

    wellpointing piston pumps and dewatering solutions

    High-efficiency pumps & wells engineered for NZ conditions.

    Drainage Submersibles

    Submersible drainage pumps manage water levels and prevent ...

    High Head Pumps

    Efficient high head surface mount and submersible pumpsets ...

    Handy, Trash, Diaphragm Pumps

    Hard-working drainage pumps for as-required site dewatering ...

    Auto-prime Pumps

    Simplify your bypass or dewatering set-up with ...

    Dewatering dredge Pumps

    Heavy duty pumps for when dewatering gets dirty.

    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

    Make an enquiry

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

    Tony Hylands

    Tony Hylands
     Industrial Pumping Solutions

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    Kobus van der Merwe

    Kobus van der Merwe
     Industrial Sales Engineer

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    Charlie Petrie

    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. 

    How does a wellpointing system work on site?

    A wellpointing system uses a series of small-diameter wellpoints installed in a line or ring around an excavation. Each wellpoint is a screened inlet, connected via a riser pipe to a header main that runs back to the wellpointing pump.

    At Prime Fluid Management, we pair this layout with positive displacement piston pumps that deliver consistent high pressure, automatically prime, and move a mixture of water and air without restriction. This setup lowers the groundwater level around the excavation, creating a more stable and workable site in New Zealand’s variable soil conditions.
    What do wellpoints, riser pipes (risers) and swing joints do in a wellpointing system?

    In a typical wellpointing setup:

    • Wellpoints or filters are the screened inlet sections installed in the ground that draw groundwater into the system.
    • Riser pipes or risers are the vertical pipes that connect each filter up to the surface and into the header main. 
    • Swing joints are the flexible connections between each riser and the header main, usually incorporating a valve so flow from each wellpoint can be adjusted or isolated as needed.

    At Prime Fluid Management, our wells and accessories range includes steel wells, PVC and self-jetting wellpoints, header pipes and swing joints. Your wellpointing system can be set up and fine-tuned to suit site conditions — or our experienced operations crew can help you configure an optimal system when hiring our equipment.
    Why use slotted screen wellpoints?

    Because different ground conditions call for either slotted screen or wedge-wire wellpoints, slotted screen designs are often used where sand control and steady groundwater intake are needed. At Prime Fluid Management, we supply PVC slotted screen wellpoints, also commonly referred to as spears, which are simple to install, economical and reusable.

    For more substantial groundwater flows or tougher ground conditions, we also supply 150mm (6 inch) steel wells — custom-designed by our team. These ensure fast installation and improved water quality. 

    The slotted screens create a controlled intake area that allows groundwater to enter freely while keeping sand and fines out of the system. This helps protect pumps and maintain system performance over longer operating periods.

    To view the full range of wellpointing pumps and accessories, download our Civil, Quarrying and Mining Product Guide 2026
    What is a jetting lance and how does it work with your jetting pumps and jetting units?

    A jetting lance is the handheld pipe used to install wellpoints. It connects to a high-pressure jetting pump and directs water into the ground to fluidise the soil, allowing each wellpoint and riser to be jetted down to its design depth.

    At Prime Fluid Management, we have jetting pumps and jetting units that are purpose-built for this task — providing compact, high-pressure pumping for installing wellpoints and other jetting applications. Options include skid-mounted units with twin 1,200 L tanks, along with remote-controlled outlets for jetting and dust suppression.
    When is a wellpointing solution the right choice compared with other dewatering methods?

    Wellpointing is often the right choice for shallow to moderate depth excavations where you need controlled drawdown of the groundwater table along a trench or around a structure.

    It’s widely used on New Zealand civil sites for pipelines, shallow foundations, services and pits — particularly in sandy or fine-grained soils where open pumping is not enough to keep the excavation stable.

    At Prime Fluid Management, we design wellpointing solutions around your project requirements, matching piston pumps, wells, risers, swing joints and jetting equipment to local soil conditions, perched water and site constraints. If wellpointing isn’t the best fit, we can also assess alternative options in the dewatering, bypass and stormwater range, including auto-prime pumps and drainage submersible solutions.
    Why use a piston pump for wellpoint dewatering?

    Piston pumps provide reliable suction in unpredictable ground conditions. They use positive displacement to move water and air through a sealed chamber, making them ideal for wellpointing applications where a consistent vacuum must be maintained — even with low or fluctuating inflow. This makes piston pumps highly dependable in unstable soils. 

    At Prime Fluid Management, we supply the BBA PT-Series piston pump range, which offers unmatched economy of use. These pumps are highly fuel efficient and maintenance-friendly, requiring servicing only every 1,500 hours — up to six times longer than standard piston pumps. You can read 

    The PT-Series is available in battery-electric, diesel and hybrid configurations, providing flexible drive options to suit different site requirements. Find out more in our article about BBA Piston Pump efficiency.