Hydac Return Line Filter with 4-Hole Mounting RFM
HYDAC RFM Return Line Filters with 4-Hole Mounting are designed for reliable and space-efficient return oil filtration in hydraulic systems, supporting flow rates up to 850 l/min and pressure levels up to 10 bar. Built to international standards, these filters feature robust construction, flexible installation options, and high-efficiency filter elements for optimal contamination control and system protection.
Key Features:
- Flow rates up to 850 l/min (tank mounted versions)
- Pressure levels up to 10 bar
- Connections: G½ to SAE DN 65
Hydac Return Line Filters with 4-hole Mounting RFM
- Flow rates up to 850 l/min (tank mounted versions)
- Pressure levels up to 10 bar
- Connections: G½ to SAE DN 65
Features:
- The filter housings are designed in accordance with international regulations.
- They consist of a filter head (with 4 hole flange), filter bowl and a screw-on cover plate.
- Installation sizes: 75, 90, 150, 165, 185, 210, 270, 330, 500, 600, 661, 851
- Options: 2-hole or 4-hole fastening
- Special models and accessories available on request
- Compatibility with hydraulic fluids ISO 2943
- Certificates and approvals available on request
Filter Specifications:
| Nominal pressure | 10 bar |
| Temperature range | -30°C to +100°C (short-term: -40°C) |
| Material of filter head | Aluminium: all RFM |
| Material of filter bowl | Polymide: all RFM except 210,270 Steel: RFM 210, 270, 600 |
| Material of cover plate | polymide: all RFM 75 to 270 Aluminium: RFM 330 to 851 |
| Type of clogging indicator | VR Connection thread G 1/2 VMF Connection thread G 1/8 (return line indication) |
| Pressure setting of clogging indicator | 2 bar (others on request) |
| Bypass cracking pressure | 3 bar (others on request) |
Filter elements are available with the following pressure stability values:
- Betamicron® (BN4HC): 20 bar
- ECOmicron® (ECON2): 10 bar
- Paper (P/HC): 10 bar
- Stainl steel Wire mesh (W/HC): 20 bar
- Betamicron®/Aquamicron® (BN4AM): 10 bar
- Aquamicron® (AM): 10 bar
- Mobilemicron® (MM): 10 bar
HYDAC filter elements are validated and their quality is constantly monitored according to the following standards:
- ISO 2941, ISO 2942, ISO 2943, ISO 3724, ISO 3968, ISO 11170, ISO 16889
General Fuction:
This type of filter can be installed as a tank mounted filter (on top of the hydraulic tank). Prevents dangerous malfunctions in hydraulic components as a result of excessive back pressure in the return line, return line filters are usually fitted with a bypass valve.
Return line filters can be fitted with breather filters as additional equipment.
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