The Hydac OLF (15/30/45/60) offline filters are designed to provide robust and reliable filtration in stationary applications with large oil volumes in hydraulic and lubrication systems.
Unlike inline filters installed directly in the main circuit, offline filters operate in a separate loop. They draw oil from the reservoir, filter it, and return it clean—without interrupting the system’s main operation. This delivers:
Effective removal of solid particles and contaminants 🛑
Extended service life of critical components (pumps, valves, actuators)
Increased fluid stability and hydraulic system efficiency
Heavy-duty design for stationary use
Filter housings with integrated motor-pump units (flow rates: 5, 10, 15, and 20 gpm)
High-performance N15DM filter elements (2 µm filtration rating)
Operating temperature range: 15 °F to 175 °F (–9 °C to +80 °C)
High capacity for large oil volumes and efficient contaminant removal
Hydac OLF offline filters are ideal for industrial environments where continuous fluid cleanliness is critical, including:
Large hydraulic presses
Stationary hydraulic power units
Lubrication systems for heavy-duty machinery
Centralized hydraulic systems
Manufacturing plants (metallurgy, paper, plastics)
Critical operations in energy and marine industries
Extends component life and reduces internal wear
Minimizes risk of unexpected downtime
Improves overall hydraulic system performance
Allows external maintenance without halting production
At Bultz, we are an official Hydac distributor, offering not only top-quality components but also expert technical support to help you select the right offline filter from the OLF series for your system.
🛡 Enhance the protection of your equipment
🚀 Increase the reliability and efficiency of your operations
🔧 Contact us for personalized assistance