Product Overview
The WILO Para 15/6-43/SC (Part No. 4531846) is a high-efficiency glandless circulator pump engineered for closed-loop heating, cooling, and potable water circulation systems. Featuring a maintenance-free wet-rotor synchronous motor with integrated electronic commutation (ECM), this pump delivers infinitely variable differential pressure control for optimized energy consumption. The “Glandless” design eliminates mechanical shaft seals, ensuring zero-leak operation and silent performance, making it a premier choice for modern hydronic balancing in commercial and residential HVAC infrastructure.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Glandless Circulator Pump (Hydraulic Pump) |
| Model Designation | WILO Para 15/6-43/SC / 4531846 |
| Operating Pressure | PN 10 (Max. 10 bar / 145 psi) |
| Mounting & Connection | G 1½” Threaded Flange / Standard ISO Interface |
| Max. Head (Hmax) | 6 m (approx. 0.6 bar) |
| Max. Flow Rate (Qmax) | 4.3 m³/h |
| Motor Type | ECM Synchronous Motor (Wet-Rotor) |
| Temperature Range | -10°C to +110°C (Heating Water) |
Engineering Features & Advantages
- Precision Performance: Integrated electronic control with selectable differential pressure modes (Δp-c / Δp-v) ensures precise hydraulic balancing and reduces power consumption by up to 80% compared to fixed-speed pumps.
- Industrial Reliability: The glandless wet-rotor design completely eliminates shaft seal leakage and maintenance, providing continuous, maintenance-free operation in demanding industrial environments.
- Direct Fit Replacement: Exact dimensional and functional compatibility with standard WILO Para series connections, allowing drop-in replacement without pipe modification.
- Quiet Operation: Advanced hydraulic profiling and ECM motor technology deliver exceptionally low noise levels, suitable for noise-sensitive commercial and residential installations.
Typical Industrial Applications
This circulator pump is ideally suited for heavy industrial and commercial scenarios including: primary/secondary hydronic heating loops in large facilities, chilled water distribution in HVAC plants, industrial process cooling circuits, and potable water recirculation systems in food and pharmaceutical processing. It is also commonly deployed in district heating substations and solar thermal circulation systems.
PRODUCT IMAGES
WILO Para 15/6-43/SC / 4531846 Glandless Circulator Pump
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine WILO Para 15/6-43/SC / 4531846 Stainless Steel Circulator Pump. This Germany-made high-efficiency pump features a canned motor design, delivering leak-free, reliable fluid circulation for heavy-duty industrial systems.