LD300-55-4

< >

LD300-55-4 Vertical Inline Centrifugal Pump

The FILIPUSI LD300-55-4 is a vertical inline centrifugal pump with a 55kW motor and DN300 suction and discharge flanges on the same centerline. Designed for high-flow, medium-head applications, this single-stage inline pump delivers flows up to 900 m³/h and heads up to 95 meters at 1450 rpm. The compact vertical design installs directly into horizontal pipelines, eliminating the need for a concrete inertia base and reducing footprint requirements by up to 50% compared to horizontal end suction pumps.

Key Advantages

• Compact inline design installs directly into pipelines, saves 50% floor space
• High flow capacity up to 900 m³/h for large HVAC and municipal systems
• Same-centerline suction/discharge eliminates pipework reconfiguration
• Cartridge mechanical seal for quick replacement without motor removal
• VFD & PLC compatible for precise flow control and energy savings
• IE3/IE4 efficiency motor reduces long-term operating costs

Typical Applications

REQUEST A QUOTE »

Specifications
Curves
Installation dimensions
Cost analysis
Information

Parameter	Specification
Model	LD300-55-4
Pump Type	Vertical inline centrifugal pump, single-stage, close-coupled
Flow Rate (Q)	Up to 900 m³/h
Discharge Head (H)	Up to 95 meters
Inlet / Outlet Size	DN300 (same centerline, inline design)
Motor Power	55 kW
Motor Speed	1450 rpm (4-pole, 50Hz) / 1750 rpm (60Hz)
Voltage / Frequency	380V / 50Hz, 3-phase (440V/460V/60Hz on request)
Max. Operating Pressure	16 bar (PN16)
Fluid Temperature	-20°C to +120°C (standard) / +180°C (high-temp type)
Pump Body Material	Cast iron (standard), SS304/316 optional
Impeller Material	Bronze (standard), SS304/316 optional
Mechanical Seal	John Crane type (silicon carbide faces), single cartridge
Motor Protection	IP55, Class F insulation, IE2/IE3 efficiency
Flange Standard	DIN / ANSI / JIS (on request)
Certifications	CE, ISO 9001:2015 \| 100% Hydrostatic Tested

LD300-55-4 inline pump installation dimensions and outline drawing with DN300 flange sizes and mounting holes

Cost Factor	FILIPUSI Advantage
Initial Price	Factory-direct pricing, typically 30-50% lower than European brands (Grundfos, Wilo) with equivalent specifications.
Energy Efficiency	IE3/IE4 premium efficiency motor with wide efficiency plateau. VFD-compatible design delivers 30-50% energy savings in variable-flow HVAC systems.
Installation Cost	Inline design installs directly into pipelines like a valve. No concrete inertia base required, reducing installation cost and floor space by up to 50%.
Maintenance Cost	Cartridge mechanical seal allows quick replacement without removing motor or disconnecting piping. Standardized spare parts at competitive prices.
Lead Time	Standard model: 15-20 working days. Air freight option available for urgent orders (5-7 days).
Warranty	18 months from shipment. Free spare part kit (seal, gaskets, O-rings) included with first order.