Roll over image to zoom
SKU: 93338911
Grundfos TPE3 125-430 Cast Iron Variable Speed Three Phase Inline Centrifugal Pump with Cast Iron Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Driven by an integrated 18.5 kW drive motor, the TPE3 125-430 single-stage inline centrifugal pump provides continuous liquid circulation across commercial HVAC networks, chilled water loops, and facility hydronic circuits. Its in-line structural layout incorporates matching DN 125 inlet and outlet flanges to streamline plant room pipework installation.
At full duty speed, hydraulic throughput reaches 3455 L/Min with a maximum head threshold of 27.6 m. Casing construction uses robust electrocoated cast iron (EN-GJL-250) to resist internal surface oxidation. Fluid transfer is driven by a Cast iron impeller paired with an industry-standard BQQE shaft seal. Physical net weight is 204 kg.
Power requirements specify a 3 x 380-480 V Three-phase electrical supply rated for 18.5 kW output, with full-load running current measuring 33.0 Amps. Operating liquid temperatures span from -25°C to 120°C across active HVAC circuits. Standardized DN 125 suction and DN 125 discharge flanged ports facilitate direct line insertion.
The drive motor is housed within an IP55 rated enclosure featuring Class F winding insulation to protect against thermal stress. Built-in frequency control with an integrated PI controller enables automatic variable speed adjustment according to active hydronic load. Maintenance operations utilize a service-friendly top-pull-out design, allowing complete rotor disassembly while the cast iron housing remains fixed in the pipe run.
Features
- Maintenance-free BQQE mechanical shaft seal prevents fluid leakage and maintains seal integrity under elevated working pressures.
- IP55 motor enclosure protection guards internal electrical components against ambient dust accumulation and water splash ingress.
- Class F thermal motor insulation permits continuous operation under elevated fluid temperatures ranging from -25°C to 120°C.
- Equal suction and discharge port diameters enable straightforward inline installation without requiring custom pipe reducer spools.
- Integrated variable frequency converter with PI controller modulates motor RPM dynamically to balance flow demand and lower energy usage.
- Top-pull-out structural layout enables complete drive head and impeller extraction without disconnecting the pump casing from system piping.
- High-efficiency motor design delivers optimized hydraulic throughput with minimal electrical power consumption across variable duty cycles.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 3455 L/Min |
| Max Head | 27.6 m |
| Power | 18.5 kW / 415v |
| Rated Current | 33.0 Amps |
| Suitable For | Heating & Cooling Systems |
| Body Material | EN-GJL-250 Cast Iron |
| Liquid Temperature | '-25°C to 120°C |
| Inlet Size | 125 mm |
| Outlet Size | 125 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What fluid operating temperature span and structural pressure containment characterize this unit?
Designed for high-capacity circuits, Grundfos TPE3 125-430 maintains dependable service across -25°C to 120°C under working pressures up to 16 bar.
Under integrated electronic speed management, how much vertical head pressure is maintained?
Operating with integrated variable frequency electronics, TPE3 125-430 maintains an operational dynamic head of approximately 27.6 m.
Under integrated inverter drive regulation, what peak flow throughput is delivered on site?
Under automated electronic frequency control, TPE3-125-430 provides a peak volumetric discharge of approximately 3455 L/Min.
Under high-volume pumping duty, which structural metals protect the wet end against wear?
Internal pressure containment in TPE3 125 430 is provided by a heavy cast iron housing alongside an aerodynamically balanced cast iron impeller (EN-GJL-200).
For central plant electrical infrastructure, what motor capacity, supply feed, and amps are specified?
Integrated inverter electronics in TPE3/125/430 power its 18.5 kW motor across a three-phase 415 V supply with an amperage of 33.0 Amps.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us