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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)
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
Industrial
Chemicals
Food Processing
Fuels & Oils
Hot Oil
Hot Water
Hygienic
Marine
Solids Handling Pumps
Vacuum & Blowing
Viscous Fluids Pumps
Wastewater
Discharge Compliance
Comprehensive water treatment and monitoring solutions
Grindex Submersible Pumps
Rugged reliability in any environment
Reduce the Risk of Failure
Grindex electrical submersible pumps are designed for demanding environments where reliability and ease of maintenance matter. With run-dry capability, lightweight construction, and modular design, Grindex pumps reduce the risk of failure and simplify servicing - whether you're working with sludge, sand, or dirty water. As New Zealand’s sole importer of the Grindex brand, our team is on hand to ensure you choose the right pump for your site and specific application.
ENGINEERING
Why Choose Grindex Pumps?
- Built for Tough Sites – designed to run unattended, with patented air valve technology that allows safe dry running.
- Versatile Range – handling everything from dirty water to abrasive slurry and high-solids sludge.
- Smart Motor Protection – a system that monitors temperature, phase failure, and water ingress, protecting the pump from common electrical faults.
- Portable & Easy to Maintain – lightweight build, modular components, and access for servicing without the need for special tools.
LOCAL SERVICE
Local Service and Support
As the sole New Zealand importer of Grindex Pumps, Prime Fluid Management provides:
- Expert Advice: Experienced staff ready to assist with pump specification, performance and servicing.
- Local Stock: Common pumps and wear parts stocked locally for immediate availability.
- Servicing Workshops: Service workshops in the north and south islands, and on-site support available.
- Custom Solutions: Tailored service packages to suit your needs .
Whether you're dewatering a pit, a tunnel, or trench, handling sludge, sand or slurry, Grindex submersible pumps offer genuine reliability and efficiency, backed by local expertise.
HISTORY
Swedish Engineering
Founded in Sweden in 1940, Grindex has spent over 80 years engineering pumps for harsh, remote environments, where reliability, serviceability, and smart design aren’t optional; they’re essential.
Discover the Grindex Pump Range
Get the full specs and performance details in one handy PDF.
Overview of our Grindex Pumps
Grindex Handy Submersibles
Run-dry indefinitely, SMART motor technology, supreme efficiency. Grindex submersibles are tougher and lighter than most.
- Size: 50mm – 152mm (2”– 6”)
- Max flow: 350L/s
- Max head: 200m
- Max solids: 11mm
Grindex Drainage Submersibles
Rugged, lightweight, run-dry electric submersibles.
- Size: 50mm - 254mm (2” – 10”)
- Max flow: 350L/s
- Max head: 200m
- Max Solids: 12mm
Grindex Sludge Pumps
The Solid, Salvador, Senior and Sandy models, designed for continuous, unattended operation where reliability is critical and solids content is high.
- Size: 50mm – 100mm (2” – 4”)
- Max flow: 24L/s
- Max head: 38mwc
- Max solids: 80mm
Grindex Slurry Pumps
Constructed for maximum wear-resistance, the Grindex Bravo range handles highly abrasive liquids with a pH tolerance of 5.5 – 14. Agitators are built-in in some models.
- Size: 100mm – 150mm (4” – 6”)
- Max flow: 130L/s
- Max head: 45mwc
- Max solids: 40 mm
Grindex Stainless Sludge Submersibles
VHandling pH 2 -10, and solids up to 10mm, Grindex INOX stainless steel submersibles handle corrosive dewatering environments.
Constructed from AISI 316 stainless steel.
Constructed from AISI 316 stainless steel.
- Size: 2” – 6”
- Max flow: 130L/s
- Max head: 200m
- Solids: 80mm
Grindex Drainage Submersibles
Rugged, lightweight, run-dry electric submersibles.
- Size: 50mm - 254mm (2” – 10”)
- Max flow: 350L/s
- Max head: 200m
- Max Solids: 12mm
Frequently Asked Questions
Can Grindex pumps really run dry without burning out?
Yes. Grindex pumps are engineered to keep working even when the water stops. Thanks to their patented air valve and SMART motor protection, most models can run dry for extended periods. That means less worry about costly failures or downtime. This is backed by a two-year dry-run warranty on applicable models.
What’s the real-world advantage of Grindex’s SMART motor protection?
SMART motor protection constantly monitors for overheating, phase failure, and water ingress. If a problem is detected, the pump automatically shuts down and restarts when safe. This means fewer breakdowns, less unplanned maintenance, and longer pump life - especially in tough, unpredictable environments.
How much maintenance do Grindex pumps need?
Minimal. Grindex pumps are designed for fast, straightforward servicing - most routine jobs require just five standard tools. Modular construction and easy-access components mean less time in the workshop and more time pumping. Plus, Prime Fluid Management stocks parts locally for quick turnaround.
What types of water and solids can Grindex pumps handle?
Grindex pumps are built for versatility. They handle everything from clean water to abrasive slurry, sand, and high-solids sludge. Handy-sized models can pass solids up to 10 mm. If you’re unsure which pump suits your job, our team can match the right model to your site conditions.
How do I get support or warranty service in New Zealand?
Prime Fluid Management is the sole NZ importer and service agent for Grindex. We offer local stock, expert advice, and full workshop servicing in both islands. Warranty support, including the dry-run guarantee, is handled directly by our team, so you’re never left waiting for overseas answers.
How do I choose the right Grindex pump for my application?
Start with your site’s flow rate, head, solids content, and power supply. Our team can quickly recommend the best-fit model and accessories for your needs. Call 0800 482 747 or email info@primefluid.co.nz for tailored advice - no guesswork required.
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