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RFA series micro direct return oil filter Introduction Performance Technical parameters Connection size Production field Cases

Production Introduction

RFA series micro direct return oil filter lefilter

RFA series micro direct return oil 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.The filter is installed on the top of the oil tank,the cylinder is immersed in the oil tank,and set up by-pass valve,diffuser,filter element pollution blocking transmitter and other devices.It has the characteristics of compact structure,convenient installation,large oil passing capacity,small pressure loss and convenient replacement of filter element and so on.

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、Easy to install,simplify the system pipeline:The filter is installed on the cover of the oil tank,the filter head is exposed outside the oil tank,the oil return cylinder body is immersed in the oil tank,and the oil inlet is equipped with pipe type and flange type connection,thus simplifying the system pipeline,making the system layout more compact,installation and connection more convenient.

2、It is equipped with filter element pollution blocking transmitter and by-pass valve,which can improve the reliability of hydraulic system.When the filter element is blocked by pollutants or the oil inlet pressure is 0.35Mpa due to low system liquid temperature,flow pulsation and other factors,the transmitter will send a signal indicating that the filter element should be replaced or the temperature should be increased in time.If the machine cannot be shut down immediately to deal with these faults at this time,the by-pass valve on the filter element will open automatically (the opening pressure difference is 0.4MPa) to protect the normal operation of the filter and hydraulic system.

3、The design adopts direct return oil filter,which makes it very convenient to replace the filter element or add oil to the oil tank:just unscrew the filter cover (cleaning cover) to replace the filter element or fill the tank, and two M18 x 1.5 oil ports are set at the filter head,which can be used to install a transmitter on either side or a small amount of oil in the system can return to the tank for filtration.

4、With liquid flow diffuser:
the diffuser is arranged at the bottom of the oil return cylinder,which can make the oil return medium flow smoothly into the oil tank and is not easy to produce bubbles,so as to reduce the re-entry of air and reduce the disturbance of deposited pollutants.

5、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 ratioβ3,5,10,20≥200, filtration efficiency N≥99.5%, in line with ISO standards.

Technical Parameters

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

3

5

10

20

30		 15 1.6 ≤0.075 0.35 12

24

36

220		 2.5

2

1.5

0.25		 0.85 FAX-25 X*
RFA-40X*L-Y/C 40 20 0.9 FAX-40 X*
RFA-63X*L-Y/C 63 25 1.5 FAX-63 X*
RFA-100X*L-Y/C 100 32 1.7 FAX-100 X*
RFA-160X*L-Y/C 160 40 2.7 FAX-160 X*
RFA-250X*F-Y/C 250 50 4.35 FAX-250 X*
RFA-400X*F-Y/C 400 65 6.15 FAX-400 X*
RFA-630X*F-Y/C 630 90 8.2 FAX-630 X*
RFA-800X*F-Y/C 800 90 8.9 FAX-800 X*
RFA-1000X*F-Y/C 1000 90 9.96 FAX-1000 X *

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 RFA. BH-63X10Y,and the filter element model is FAX.BH-63X80.

Connection Size

1、tubular (outlet threaded link)

RFA series micro direct return oil filter tubular connection Size

2、flange (outlet flange link)

RFA series micro direct return oil filter flange connection Size

Table I、RFA-25~160 pipe connection size

Model Size (mm)
L1 L2 L3 H D M m A B C1 C2 C3 d h
RFA-25x*L-C 127 74 45 25 175 M22X1.5 M18X1.5 90 70 53 45 39 Φ9 10
RFA-40x*L-C 158 M27x2
RFA-63x*L-C 185 93 60 33 895 M33X2 110 85 60 53 12
RFA-100x*L-C 245 M42x2
RFA-63x*L-C 332 108 80 40 >=110 M48X2 125 95 71 61 Φ13 15

Table II、 RFA-250~800 flanged connection size

Model Size (mm)
L1 L2 L3 H D E m a b n A B C1 C2 C3 d Q h
RFA-250x*F-Y 422 108 80 40 Φ110 Φ50 M18X1.5 70 40 M10 125 95 81 61 39 0.13 60 15
RFA-400x*F-Y 467 135 100 55 Φ130 Φ65 90 50 140 110 90 68 73 15
RFA-630x*F-Y 494 175 118 70 Φ160 Φ90 120 70 170 140 110 85 102 18
RFA-800x*F-Y 606
RFA- 1000 x*F-C 786

Note:1.The oil inlet flange,installation bolt,sealing ring and other accessories required by the product are provided with the product,and users only needs to prepare 8Q pipe welding.
2.2-M is M18XL5 screw hole,which can be installed on any side of the transmitter or used for small oil return hole,and equipped with wire plug.

Production Field

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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

CONTACT US
Tel:+86 13949637340
Office address:
No. 9 Hongli Road, Muye District, Xinxiang City, Henan Province, China. ZIP CODE: 453002.
Factory address 1:
Block B1, Filtration Industrial Park, High-tech Industrial Development Zone, Xinxiang City, Henan Province, China. 453002.
Factory address 2:
No. 1 Chenfeng Road, Liangyuan District, Shangqiu City, Henan Province, China.
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