
RFD duplex return filter is composed of two single-barrel filters and two-position six-way directional valves, simple structure, easy to use, and with bypass valve and filter element pollution blockage transmitter to achieve the purpose of system safety.



1. Lubricate the sealing surfaces on the filter housing and cover plate, as well as the O-ring, with clean operating fluid.
2. When installing a new filter element, check that the designation corresponds to that of the old element.
3. If present, install the contamination retainer onto the new or cleaned filter element by turning clockwise.
4. Place filter element carefully on to the element nozzle in the housing.
5. Sizes 60-330:
Replace cover plate and screw in cover plate bolts by hand; then tighten bolts alternately.
Sizes 660-1300:
Replace cover plate in correct position (dowel pin in the housing must line up with groove in cover plate) and turn counter-clockwise as far as it will go. Tighten cover plate bolts alternately.
6. Vent filter at an appropriate point in the system.
7. Check filter for leakage.

Part Number | Model Code Description | Flow | Operating Pressure [Max] | Filter Rating |
2064169 | RFD ON 330DAL10D1.0/L24 | 330 L/min | 25 bar/360 psi | 10um |
2064177 | RFD ON 330DAL3C1.0 | 330 L/min | 25 bar/360 psi | 3um |
2064331 | RFD ON 110VAC3B1.0/3V | 110 L/min | 25 bar/360 psi | 3um |
2064335 | RFD ON 330VAL5B1.0 | 330 L/min | 25 bar/360 psi | 5um |
2064338 | RFD ON 1300DAP5D1.1/L110 | 1300 L/min | 25 bar/360 psi | 5um |
2064411 | RFD ON 660DAN5C1.1/16V | 660 L/min | 25 bar/360 psi | 5um |

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