Danfoss FRL074 & ERL147 Pump | FRL074BLS | ERL147CLS | Load Sensing Piston Pump

Danfoss F-Series & ER-Series High-Performance Load-Sensing Variable Piston Pumps

Product Overview: The Danfoss F-Series (FRR/FRL) and ER-Series (ERR/ERL) represent the pinnacle of variable displacement piston pump technology, engineered to meet the extreme reliability and precision demands of modern mobile machinery. This series covers a comprehensive displacement spectrum from the mid-range 74cc (FRL074) and 90cc (FRR090) to the heavy-duty 147cc (ERL147). Featured models like the FRL074BLS2520NNN3-S2 and ER-L147CLS2620NNN3S2 deliver unmatched efficiency. Utilizing sophisticated LS (Load Sensing) logic, these pumps match flow to actual actuator demand in real-time, drastically reducing energy consumption. They are the premier choice for telehandlers, concrete pumps, forestry equipment, and oil rig rotary heads.

Key Technical Advantages:

• Precision LS Load Sensing Control: Provides exceptionally smooth sensing of load variations, delivering only the necessary pressure and flow to minimize relief losses and suppress system heat generation.

• High Power Density Architecture: Reinforced swashplate and piston components deliver operating pressures up to 310 Bar within a compact housing, built for the most demanding heavy-duty cycles.

• Advanced Fluid Dynamic Design: Optimized intake flow paths significantly enhance self-priming capabilities at high speeds, reducing cavitation risk and extending the service life of rotating groups.

• Flexible Installation Options: Available in FRR/ERR (Clockwise) and FRL/ERL (Counter-clockwise) rotations with standard SAE flanges and shafts for seamless integration with transfer cases or engine PTOs.

• Modular Configuration Capability: A wide array of controller options beyond Load Sensing, including Pressure Compensation (PC) or Electric Proportional Control, catering to intelligent machine control systems.

Detailed Models & Parameters:

• Core Series: Danfoss F-Series & ER-Series (Open Circuit).

• Model Keywords: FRR090, FRL074, FRL074BLS, ERL147, ERL147CLS.

• Full Config Codes: FRL074BLS2520NNN3-S2, ER-L147CLS2620NNN3S2.

• Displacements: 74.2 cm³/rev (4.53 in³), 90 cm³/rev (5.49 in³), 147.1 cm³/rev (8.98 in³).

• Pressure Ratings: Rated at 310 Bar (4500 PSI) continuous; Peak capability up to 400 Bar (5800 PSI).

• Rotation: L (Counter-clockwise/CCW); R (Clockwise/CW).

• Target Applications: Heavy-duty telehandlers, oil drilling rotary heads, concrete pumping machinery, and large agricultural equipment.