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RFB series direct return self-sealing magnetic oil return filter Introduction Performance Installation and model Technical parameters Connection size Production field Cases

Production Introduction

RFB series direct return self-sealing magnetic oil return filter lefilter

RFB series direct return self-sealing magnetic oil return filter

The filter is used for fine filtration of the return oil of the hydraulic system to filter out metal particles produced by the wear of components in the hydraulic system and rubber impurities of seals and other pollutants,so as to keep the oil flowing back to the oil tank clean.

Application widely used in hydraulic systems such as heavy machinery, mining machinery and metallurgical machinery.
Filter medium water and ethylene glycol in hydraulic oil
Email overseas@lefilter.com

Performance and Characteristics

1.The filter can be directly installed on the top,side or bottom of the tank,the filter head is exposed outside the tank,and the cylinder is immersed in the tank,thus simplifying the system pipeline and making the system arrangement more compact.

2.The filter is equipped with permanent magnet,which can filter out ferromagnetic particles of more than 1 micron in oil.

3.With by-pass valve:When the filter element is blocked by pollutants or the pressure difference of the filter is too large due to low system liquid temperature,flow pulsation and other factors, and the host cannot work,the by-pass valve in parallel at the lower part of the filter cover will open automatically (the opening pressure difference is 0.4MPa) to protect the normal operation of the filter element and the system.

4.Equipped with check valve:the filter is installed on the side and bottom of the tank,when replacing the filter element,the oil in the tank will not flow out. 

5.Equipped with liquid flow diffuser:the liquid flow diffuser located at the lower part of the cylinder can make the return oil flow smoothly into the oil tank,which is not easy to produce bubbles,reduce the re-entry air,reduce the disturbance of deposited pollutants,and play the role of coarse filtration when the by-pass valve is opened.

6.With visual indication and electric transmission in one transmission device,overflow pipe and fouling cup:when the filter element is gradually blocked,the blockage of the filter element can be observed on the visual table,and the electric transmission can be received at the same time (the transmission value is 0.35Mpa).The overflow pipe and fouling cup are set at the bottom of the filter element,which can be taken out together when replacing the filter element,so as to avoid the phenomenon of pollutants falling into the oil tank again.

7.The filter element is made of chemical fiber,which has the advantages of high filtration accuracy,large oil passing capacity, small original pressure loss,high pollutant carrying capacity and so on.The filtration accuracy is calibrated by absolute filtration accuracy,the filtration ratioβ3,5,20≥200,in line with ISO standards. 

8.The filter element is made of chemical fiber,which has the advantages of high filtration accuracy,large oil passing capacity, small original pressure loss,high pollutant carrying capacity and so on.The filtration accuracy is calibrated by absolute filtration accuracy,the filtration ratioβ3,5,20≥200,in line with ISO standards. 

9.With attached oil return holes:two small oil return holes are set on the side and top of the filter head,which can be used to return a small amount of oil in the system to the oil tank for filtration or add a small amount of oil to the oil tank.When the filter is installed on the side or bottom of the oil tank,unscrew the small hole cover to remove the oil containing polluting impurities in the filter,so as to prolong the service life of the filter element and facilitate the purification of oil.

Installation diagram and model description

RFB series Installation
RFB series model description

Technical Parameters

model nominal flow rate
(L/min)
filtration accuracy
(μm)
nominal pressure
(MPa)
pressure loss
(MPa)
transmitting device
(V/W)
weight
(Kg)
filter element model
Initial Max. (V) (A)
RFB-25 x *C/Y 25 1

3

5

10

20

30
1.6 ≤0.075 0.35 12

24

63

220
2.5

2

1.5

0.25
4.6 FBX-25 x *
RFB-40 x *C/Y 40 4.8 FBX-40 x *
RFB-63 x *C/Y 63 5.3 FBX - 63 x *
RFB-100 x *C/Y 100 6 FBX-100 x *
RFB-160 X *C/Y 160 6.7 RFB-160 X *C
RFB-250 X *C/Y 250 12.3 FBX-250 X *
RFB-400 x *C/Y 400 14.7 FBX-400 x *
RFB-630 x *C/Y 630 17.3 FBX-630 x *
RFB - 800 x *C/Y 800 18.6 FBX-800 x *
RFB- 1000x*C/Y 1000 21.3 FBX-1000 X *
RFB- 1300x*C/Y 1300 RFB-1300x*C

Note:*refers to filtration accuracy.If the medium is water-glycol,nominal flow rate is 63L/min,filtration accuracy is 10μm,with CYB- I transmitter,the filter model is RFB.BH-160x 10Y,and the filter element model isFBX.BH-160X10.

Connection Size

RFB series model connection Size
Model Size (mm)
A B C D E F G H J K L N P M a b S T Q h
RFB - 25 x *C/Y 78 167 348 Φ124 175 96.5 58 168 75 Φ150 90 Φ7 Φ55 M10 102 78 80 43 60 20
RFB - 40 x *C/Y 374
RFB - 63 x *C/Y 411
RFB - 63 x *C/Y 473
RFB - 160 x *C 548
RFB - 250 x *C/Y 120 210 558 Φ186 250 132 74 245 112 Φ225 132 Φ9 Φ80 M12 140 106 110 62 90 22
RFB - 400 x *C/Y 708
RFB - 630 x *C/Y 877
RFB - 800 x *C/Y 948
RFB- 1000 x*C/Y 1114
RFB- 1300 x*C/Y 1454

Note: the connecting flange of the oil inlet is provided by our company.Users only needs to prepare the q-size pipe for welding.

Production Field

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  • RFB series direct return self-sealing magnetic oil return filter lefilter RFB series direct return self-sealing magnetic oil return filter lefilter RFB series direct return self-sealing magnetic oil return filter lefilter RFB series direct return self-sealing magnetic oil return filter lefilter RFB series direct return self-sealing magnetic oil return filter lefilter

Case Site

  • double druml oil filtration site
    double druml oil filtration site

    function:hydraulic oil filtrationrate of flow:1000t/h

  • pressure pipeline filtration site
    pressure pipeline filtration site

    function:hydraulic oil filtrationrate of flow:200t/h

  • machining filtration site
    machining filtration site

    function: oil filtratiionrate of flow:100t/h

CUSTOMIZATION SERVICE PROCESS

Provide customization services according to different working conditions