The R25/6.3 FL-Z-P is one of the model variants in Germany's RICKMEIER (Rickmeier) R25 series of external gear pumps, specifically designed for lubricant transfer, hydraulic systems, and clean fluid media conveyance. Its core advantages lie in its compact structure, high reliability, and modular configuration, making it suitable for medium-to-low flow industrial applications. With a displacement rating of 6.3 cm³/rev, it represents a medium-displacement model within the R25 series.
Structural Design
• Materials: The pump body is made of gray cast iron (EN-GJL-250/GG-25), while the gears are crafted from quenched and surface-hardened steel (16MnCrS5), providing wear and corrosion resistance. The sliding bearings feature a P10/DU composite coating, offering dry running tolerance.
• Sealing Options:
◦ Standard Configuration: NBR radial shaft seals (suitable for temperatures ranging from -25°C to 80°C).
• Drive Methods: Supports direct-coupled motor or magnetic drive (for leakage-free applications).
Performance Optimization
• Low-Noise Operation: Special gear meshing design reduces noise levels to as low as 54 dB(A).
• Modular Expansion:
◦ Supports SAE flanges and metric threaded connections, accommodating various piping systems.
Reliability Assurance
• Composite sliding bearing design extends service life.
• Requires use with a filter (ISO 4406 contamination level ≤21/19/17) to prevent hard particle damage to the pump body.