Product Overview
The WILO BAC40-134-2.2/2-DM/S-2 is a high-efficiency inline centrifugal circulator pump engineered by WILO, a globally recognized manufacturer of premium fluid handling equipment. Operating on a dynamic centrifugal working principle, this pump converts rotational kinetic energy from its impeller into hydraulic pressure, delivering continuous, pulsation-free flow through closed-loop and open-circuit industrial systems. With a nominal suction and discharge connection of DN 40 (1½”) and a 2.2 kW drive motor, the BAC40-134-2.2/2-DM/S-2 is purpose-built for demanding circulation duties in heating, cooling, and process water networks where stable head pressure and low noise are critical. Its inline (straight-through) casing design allows direct installation into the pipe run, minimizing footprint and eliminating the need for additional elbows or offsets.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Inline Centrifugal Circulator Pump |
| Model Designation | BAC40-134-2.2/2-DM/S-2 |
| Nominal Connection Size | DN 40 (1½”) inline flanged / threaded ports |
| Drive Motor Rating | 2.2 kW, 2-pole (≈2900 rpm at 50 Hz) |
| Operating Pressure | Standard Industrial Grade (PN 10 / PN 16 rated casing) |
| Pump Type | Single-stage, single-suction centrifugal, inline configuration |
| Mounting & Connection | Standard ISO / Manufacturer Interface — inline pipe mounting with integrated motor lantern |
| Shaft Seal | Mechanical seal (DM/S-2 variant), maintenance-free |
| Impeller | Precision-balanced centrifugal impeller for stable head/flow curve |
Engineering Features & Advantages
- Precision Performance: The dynamically balanced centrifugal impeller and optimized volute casing deliver a smooth, stable head-flow characteristic with minimal hydraulic turbulence, ensuring consistent circulation rates across the full operating curve.
- Inline Space-Saving Design: The straight-through DN 40 casing mounts directly into the pipeline, reducing installation footprint and simplifying retrofit into existing plant rooms without pipe re-routing.
- Low Noise & Vibration: Close-coupled motor-to-pump construction with a rigid lantern bracket minimizes shaft deflection and mechanical vibration, keeping sound pressure levels low for comfort-critical building services.
- Industrial Reliability: Built for continuous duty operation under severe industrial conditions, with a robust 2.2 kW motor and durable mechanical seal designed for extended service intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original WILO standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
Operating on a dynamic centrifugal working principle, this pump converts rotational kinetic energy from its impeller into hydraulic pressure, delivering continuous, pulsation-free flow through closed-loop and open-circuit industrial systems.
PRODUCT IMAGES
WILO BAC40-134-2.2/2-DM/S-2 Inline Centrifugal 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 BAC40-134-2.2/2-DM/S-2 Stainless Steel Inline Circulator Pump. This Germany-made 2.2 kW pump features a high-efficiency impeller and canned motor design, delivering leak-free, reliable fluid circulation for heavy-duty industrial systems.