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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)
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
Chemicals
Food Processing
Fuels & Oils
Hot Oil
Hot Water
Hygienic
Marine
Solids Handling Pumps
Vacuum & Blowing
Viscous Fluids Pumps
Wastewater
Comprehensive water treatment and monitoring solutions
Wangen Progressive Cavity Pumps
Engineering Brilliance
For New Zealand industries where abrasion, fibrous content, and maintenance costs are key concerns, Wangen Progressive Cavity (PC) pumps offer a economically and technically superior solution.
Their robust mechanical design with bearing isolation, durable cardan joints, and hardened rotors contribute to exceptional wear life. Wangen PC pumps also run at lower RPMs, resulting in less heat, vibration, and ultimately, wear. The quick-change cartridge seals further reduce downtime during maintenance, enhancing overall efficiency.
Blockage-free operation
Wangen’s fully encapsulated cardan joint has needle roller bearings and a protective sleeve. It is engineered for continuous, blockage-free operation in abrasive and fibrous media - minimising wear and eliminating common failure points associated with conventional pin joints. Wangen has also integrated a separate bearing housing between the pump and gearbox to isolate axial and radial loads from the drive, again, significantly reducing wear and extending service life.
- Fully sleeved universal joint with needle roller bearings designed for long-term durability
- High power transmission designed to maintain efficiency at high pressures.
- The joint easily handles radial and thrust loading.
Maintenance-free Mechanical Seal
Wangen's LWD Cartridge mechanical seal offers a compact, pre-assembled design that enables fast, tool-free replacement. Pump reliability is improved and downtime reduced due to minimal leakage and wear. The net result is a highly efficient and user-friendly sealing solution, ideal for demanding applications .
- Pre-assembled, oil-lubricated mechanical seal in a sealed chamber.
- Prevents ingress of solids and simplifies replacement.
- Simple replacement (a single piece).
- Ideal for abrasive applications.
Overview of our Wangen Progressive Cavity Pumps
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
Very low maintenance and highly dependable, Wangen KL Series of effluent PC pumps perform at very low rpm and features a unique, encapsulated cardon joint that is wear and maintenance-free.
- Power: 7.5 – 18.5kW
- Speed: 152 – 260 rpm
- Max flow: 60m³/hr
- Max pressure: 12 bar
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
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
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
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%
KL-RL series progressive cavity pumps ensure nearly pulsation-free flow with a large hopper and screw conveyors to optimise pumping of non flowable product.
- Max flow: 65m3/hr
- Max pressure: 48
- Max solids: 95mm
The KL-RF hopper feed series is available in S-, L-, and H- rotor/stator geometries and is well-suited to plasticising blocks of fat or butter.
- Max flow: 22m3/hr
- Max pressure: 48
- Max solids: 95mm
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
Download the Wangen Brochure
In the field
Here are some examples of our solutions being used.
Read Dewatering, Bypass & Sewage articles
See other Dewatering, Bypass & Sewage Pumps
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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.
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.
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.
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
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.
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.
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.