What Is a Hydraulic Filter Media?
Hydraulic filter media is the critical component within a hydraulic system to remove damaging particulates by forcing hydraulic fluid through a porous media. The filter media catches contaminants and prevents them from re-entering the fluid flow and damaging other pieces of equipment further downstream.
What Are Some Common Types of Hydraulic Filter Media?
Hollingsworth & Vose Company has a wide variety of Hydraulic media used for a wide range of applications depending on the desired efficiency and/or lifetime for a particular application. Each type has been highly engineered to optimize materials, structure, resin chemistry, and other characteristics. Common materials used in hydraulic media are micro-fiberglass, resin-impregnated cellulose, and polyester. In addition, a hydraulic filter media may contain several layers of different materials depending on the requirements. The materials are combined and bonded together to provide a single composite filter media.
What Are Common Applications of Hydraulics?
Hollingsworth & Vose is the leading source of hydraulic filtration media for a broad range of applications, from construction and agriculture to aerospace. Hydraulic filters remove impurities from liquids in fluid streams. In all hydraulic applications, the main purpose is to provide good protection by removing fine particulates within the system while using less energy possible (pressure drop) and for a longer time as possible (dust holding capacity).
Why Choose H&V’s Hydraulic Filter Media Solutions?
Hollingsworth & Vose offers a broad selection of filtration solutions for high-performance hydraulic systems.
Our R&D and manufacturing facilities located in the Americas, Europe, and Asia enable us to serve the global market. To learn more about our coalescer filter solutions, contact us today.
H&V media are ideal for mobile equipment, industrial, and aerospace hydraulic filtration requirements. Our popular mobile hydraulic filter media are designed to achieve ultimate protection and equipment uptime in any harsh environment. For industrial hydraulic filtration, H&V provides media that deliver high levels of fluid cleanliness and predictable filter life spans. H&V’s industry-leading portfolio of filtration grades spans all of your hydraulic media needs and specifically includes:
- Dual-phase media to provide high efficiency and high dust-holding capacity
- Unique composites with the industries’ lowest flow restriction—5-micron and 10-micron media
- Thin single-phase media for high pleat-count designs
- Laminated grades for durability in high-pressure applications
- Unique media designs that optimize filtration performance
- Microglass-, cellulose-, and synthetic-based media
H&V continues to set the hydraulic media standard with the industry’s lowest flow restriction, highest beta-stability, and newest synthetic composites. Our newest design and manufacturing processes provide greater roll-to-roll and lot-to-lot consistency, giving you easier pleater set ups and a more optimized production process. With mills in the U.S., Mexico, Germany, U.K., and China, H&V provides globally consistent products and short supply-chain lead times.
For more information, please click on the links below for brochures, white papers, and case studies:
Meltblown and Synthetic Composites Filter Media
Hydraulic Filter Media (English units)
Frequently Asked Questions:
Q) What types of hydraulic fluid are your media compatible with?
A) Our media are all designed to be compatible with all typical hydraulic oils and fluids. Compatibility includes synthetic hydraulic oils, and fluids with additives such as detergent and anti-wear compounds. Our media are also compatible with Skydrol® hydraulic fluids.
Q) What is the maximum temperature that you media can operate in?
A) Our media are designed to withstand exposure to continuous oil temperatures of 180° C.
Q) What is the difference between single phase and dual phase media?
A) Dual phase media are produced using H&V’s proprietary manufacturing techniques to have a gradient density within one layer of paper. This allows the dual phase media to have higher dust loading capacity than a single phase media created by H&V or our competitors.
Q) How do I choose a laminated grade if I need more strength in my application?
A) First you should select the correct base grade based on your filtration requirements (i.e. a 5 micron filter application), and then we can determine the correct products to laminate to the base to meet your strength requirements.
Q) What is the difference between laminating and co-pleating?
A) Lamination is done at our mills, and the additional scrims or media are physically joined into a single media. In co-pleating, the layers are not physically attached to each other. Using a laminated product can allow you to get more layers in your filter than is possible by co-pleating.
To request a Technical Data Sheet please click Contact Us above and complete the form.
Grade Description Basis Weight
(microns – Beta 200)
(Pa @ 32 LPM)
Dirt Holding Capacity
(mm TAPPI 1.5 psi)
1056/1 Single Phase 40 µm 65 40 1 180 0.43 1076 Single Phase 20 µm 65 19 2 88 0.41 1313 Single Phase 10 µm 55 11 5 85 0.31 1359 Single Phase 30 µm 70 24 2 125 0.46 1388/2 Single Phase 5 µm 75 5 12 82 0.43 1393/1 Single Phase 15 µm 53 15 2 84 0.33 1702 Single Phase 20 µm 54 22 2 98 0.33 917 Single Phase 12 µm 100 12 5 90 0.58 DC4271 Dual Phase 3 µm 90 3 25 135 0.53 DC4273 Dual Phase 3 µm 89 3 3 137 0.51 DD2391 Single Phase 5 µm 82 5 11 184 0.43 DD2401 Dual Phase 5 µm 82 (<4) 14 167 0.43 DE1741 Dual Phase 10 µm 106 9 6 228 0.51 HF0421 Single Phase 30 µm 102 26 3 210 0.51 HF0461 Single Phase 20 µm 119 20 N/A 199 0.54 HF0491 Single Phase 40 µm 66 39 1 210 0.36 HF0781 Single Phase 25 µm 115 22 3 179 0.53