Inline Centrifugal Pump
Featured Vertical Inline Centrifugal Pumps |
FILIPUSI manufactures space-optimized vertical inline pumps engineered to integrate directly into straight horizontal pipelines. Eliminating concrete inertia bases, our pipeline circulation series delivers continuous 24/7 reliability across HVAC chillers, district heating networks, process cooling systems, and industrial fluid manifolds.
Available in both LD Series (Rigid Long-Coupled) and SL Series (Compact Close-Coupled) configurations, these vertical inline pumps offer up to 40% footprint savings and micrometric CNC-machined alignment to prevent mechanical seal leakage in high-demand HVAC utility and process cooling networks. The inline design installs directly into piping like a valve, eliminating complex foundation work and reducing installation cost.
Applicable to: HVAC Chillers, District Heating & Cooling, Process Cooling, Industrial Fluid Manifolds, Cooling Towers, High-Rise Commercial Water Boosting, Closed-Loop Circulation Systems, and Solar Thermal Water Transfer.
| Engineering Metric | Standard Range | Custom OEM Scope |
|---|---|---|
| Volumetric Flow (Q) | Up to 1,200 m³/h | Custom trimmed impellers for exact BEP points |
| Discharge Head (H) | 12 to 160 meters | High-pressure reinforced casing for heads above 160m |
| Motor Power | 0.75 kW to 250 kW | IE2/IE3/IE4 premium efficiency, explosion-proof options |
| Inlet / Outlet Size | DN32 to DN300 | DIN / ANSI / JIS flange standards |
| Thermal Operating Band | -10°C to +120°C | High-temp seals for up to +160°C (district heating) |
| Casing Pressure Class | PN16 (standard) | PN25 / PN40 reinforced casings |
| Material Selection | Grade 250 Cast Iron, Ductile Iron | SS316L, Bronze, Duplex 2205 for corrosive service |
| VFD & Automation | VFD & PLC Ready (Modbus / BACnet) | Profibus, Modbus TCP, BACnet/IP integration |
Compliant with ISO 9001, CE standards, and industrial manufacturing specifications. 100% hydrostatic pressure tested before shipment.
Series Configurations
FILIPUSI offers two vertical inline pump series to match different installation, maintenance, and space requirements:
|
LD Series Rigid Long-Coupled Features a spacer coupling and dedicated bearing bracket. Back Pull-Out design lets service teams replace mechanical seals without removing the motor. Ideal for larger pumps (above 30 kW), critical HVAC systems, and applications requiring frequent maintenance access. |
SL Series Compact Close-Coupled Stub-shaft architecture saves up to 40% footprint, eliminates shaft coupling alignment issues, and reduces operational vibration. Ideal for space-constrained mechanical rooms, smaller pumps (under 30 kW), and standard HVAC circulation where frequent maintenance is not expected. |
Core Advantages & Engineering Features
|
• Space-Saving Inline Design: Installs directly into horizontal pipelines like a valve, cutting baseline footprint requirements by up to 50% and eliminating concrete inertia bases. Ideal for mechanical rooms with limited floor space. |
• Micrometric CNC Alignment: CNC machined in a single setup to eliminate radial run-out, preventing seal leakage and extending maintenance cycles by up to 40%. Permanent shaft alignment eliminates routine re-alignment. |
|
• VFD & BMS Integration: VFD and PLC ready with standard Modbus and BACnet protocols, enabling seamless integration into building management systems (BMS) and industrial automation networks for precise flow and pressure control. |
• Low Vibration & Quiet Operation: Precision-balanced impellers and rigid construction ensure smooth, low-vibration operation (<70 dB), making inline pumps suitable for installation in occupied building mechanical rooms without additional noise mitigation. |
Field Selection Guide & FAQ
Q1: What are the primary installation advantages of a vertical inline layout over traditional horizontal end suction configurations?
A1: Inline pumps install like standard valves directly in horizontal pipelines, cutting baseline footprint requirements by up to 50%. This eliminates complex concrete inertia foundations and shields assemblies from thermal pipe expansion alignment issues. The coaxial suction and discharge nozzles also simplify piping design and reduce installation cost.
Q2: How does the LD long-coupled series streamline emergency mechanical seal replacement?
A2: The LD series features a heavy-duty spacer coupling. Technicians can extract the mechanical seal cartridge through the side gap after unbolting the spacer, replacing seals in under one hour without disturbing the electric motor or breaking pipeline flanges. This is critical for critical HVAC systems where downtime must be minimized.
Q3: When should I choose the LD long-coupled series vs. the SL close-coupled series?
A3: Choose the LD long-coupled series when: motor power exceeds 30 kW; the application is critical-process where uptime is paramount; frequent seal/bearing maintenance is expected; or independent bearing housing is required for high-thrust loads. Choose the SL close-coupled series for space-constrained installations, smaller motors (under 30 kW), and standard-duty HVAC circulation where frequent maintenance is not expected.
Q4: Can vertical inline pumps handle high-temperature district heating water?
A4: Yes. Standard inline pumps handle fluid temperatures from -10°C to +120°C, suitable for most HVAC and district heating applications. For high-temperature district heating networks operating above 120°C, specify high-temperature mechanical seals with cooling jackets (Plan 21 or Plan 32), allowing operation with fluid temperatures up to 160°C. The inline design also handles thermal pipe expansion better than horizontal baseplate-mounted pumps.
Expert Support: FILIPUSI's engineering division employs advanced computational fluid dynamics to match pump trimmings strictly to your building friction loss and NPSHa values. Contact us to get tailored hydraulic selection proposals & material analysis within 24 hours.
Explore Inline Pump Series:
• LD Series Rigid Long-Coupled Inline Pumps Engineering
• SL Series Compact Close-Coupled Inline Pumps Engineering
Related Pump Categories:
• Horizontal End Suction Centrifugal Pumps (Standard Floor-Mounted)
• High-Pressure Industrial Multistage Pumps (Heads Exceeding 160m)
• Marine Centrifugal Pumps Portfolio
• Double Suction Split Case Pumps (High-Flow Applications)
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