LF(M) High Viscosity Filter Assemblies

Hy-Pro's LF(M) High Viscosity Low Pressure Filter Assemblies are engineered to deliver superior filtration performance in high-flow hydraulic, high-viscosity lubrication, and heavily contaminated fuel applications. With a maximum operating pressure of 150 psi (10 bar) and options up to 1000 psi (68.9 bar), these assemblies ensure consistent fluid cleanliness and system reliability. Constructed from heavy-duty carbon steel or optional 304/316 stainless steel, the LF(M) series is built to withstand the toughest industrial conditions. Featuring oversized coreless filter elements with β3[C] > 4000 media efficiency, integral zero-leak bypass valves, and standard sample ports with true ΔP gauges, the LF(M) assemblies provide comprehensive monitoring and maintenance capabilities. Designed for seamless integration into existing systems, they offer flexibility and cost-effectiveness without the need for extensive modifications.

Max Operating Pressure: 150 psi (10 bar)

Available options up to 1000 psi (68.9 bar)

Download the Donaldson Hy-Pro LF(M) High Viscosity Filter Assemblies Brochure
HP107

Filtration starts with the filter.

The oversized coreless filter element in every LF delivers lower ISO Codes over a long element lifespan to ensure low disposal impact, simultaneously reducing your environmental footprint and your bottom line. To top it off, select elements come standard with an integral zero-leak bypass so with every filter change you get a new bypass along with peace of mind.

Built for industrial use.

Constructed from heavy duty carbon steel (standard) or the optional 304 or 316 stainless steel, the LF filter housings are designed to excel in even the toughest industrial conditions. Multiround units go even further to provide increased capacity whether you’re operating with incredibly high viscosity oils, extreme flow rates or need extended service intervals.
LFM
Media Efficiency 2018-01

Element configuration & media options.

With media options down to β3[C] > 4000, insoluble varnish removal and water absorbing options, you get the perfect element for your application, every time. Element configurations include Hy-Pro HP106 and HP107 coreless style elements with integral, zero-leak bypass valves. For those plants using 8314 style industry standard elements, the HP8314 offers an improved bypass valve design.

Setting the new standard.

Sampling and condition monitoring are no longer optional, they’re a necessity. That’s why every LF comes standard with sample ports and green to red true ∆P gages that indicate exact element condition at all times. With access to accurate system cleanliness conditions, you’ll know exactly how well your filtration is performing.
LF
LF

Minimize the mess.

Top loading filter housings minimize the mess from element services and changes. And with the easy open swing bolt lid design, you’ll be back to filtering your fluids without having to search for all those lost parts.

Seamlessly integrated into your systems.

Multiple connection options and port customization provide the flexibility to integrate LF directly into existing re-circulating or auxiliary side loop and dispensing lines to improve fluid cleanliness and optimize existing assets. Get filtration exactly where you need it without extra expense of installing new plumbing and electrical.
LF(M)

Donaldson Hy-Pro 6810 Layton Road Anderson IN, 46011 | +1 (317) 849-3535 | info@hyprofiltration.com | All Rights Reserved 2025

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