Well-Known for its Fine Quality RFLD Fuel Line Hydraulic Duplex Filter/Oil Line Filter Element

Specifications

                                Well-Known for its Fine Quality RFLD Fuel Line Hydraulic Duplex Filter/Oil Line Filter Element

 1. Product introduction

The filter housing and the connectors are designed in accordance with the international standard, widely used in the lubricating oil system of circulating loop, test systems, vehicles, punching machine, ships and offshore platforms etc.  

2. Product characteristics

Filter basic construction

RFLD series filters are connected by a switch valve, drift diameter DN80 and above is equipped with pressure balance pipeline; below DN80, the balance valve is put in change-over valve body.

This structure reduces the pressure impact on the filter when switching valve, standard filter is with vent hole, relief hole, and mounting holes of clogging indicator.  

2.1 Housing material

Optional: Ductile iron, cast steel  

2.2 Seals

Perbunan (=NBR)

2.3 Filter element

Filter medium material

High strength carbon steel skeleton

2.4 Optional accessories

Without clogging indicator, with steel plug

Visual clogging indicator: CM-03

Electrical clogging indicator: CM-05

Combined visual /electrical clogging indicator: CM-08

Bypass valve (setting 6 bar)

2.5 Type of connection 

Inch threaded connection; Flanged connection

2.6 Symbols 

3. Type selection and technical data 

3.1 Order example

 3.2 Technical Data

    Note: * represents filtration rating.

4. Mounting Size

4.1 RFLD 111-501 

Note: 1)Flange connection SAE J518C (Standard pressure 3000psi)
          2)Thread connection in accordance with ISO 228.  

4.2 RFLD 661-1301

Note: Flange connection as per SAE J518C (Standard pressure 3000psi)

           DIN flange connection as per DIN2501.PN25/40 (D or E seal)

4.3 RFLD 332/502/503

4.4 RFLD 662-1302,853,1322 

 Note: DIN flange connection as per DIN2501, PN25/40 (D or E seal)

5.  Product characteristic curves           

The total filter assembly pressure drop is the sum of housing and element pressure drop,filter selection calculated as per the following curves.

 5.1 Housing pressure drop / flow rate characteristic curves 

 Housing pressure drop /flow rate characteristic curves are according to ISO3968, and suitable for the mineral oil with density 0.86 kg/dm³ and kinematic viscosity 30 mm²/s. 

 5.2 Differential pressure / flow characteristic curves of filter element

 The characteristic curves of filter element are suitable for the mineral oil with kinematic viscosity 30 mm²/s. Differential pressure and viscosity is proportional.

    Note: If any other requriements, please consult us.

♦DFFILTRI was founded in 1995, since then we devoted ourselves to research, develop and produce many kinds of hydraulic filters, air filters, hydraulic system accessories, cleaning and filtration equipments, pump valve components. DFFILTRI is our brand, which enjoys high popularity and it has successfully achieved the position both in China and across the world.

♦DFFILTER filtration technology testing center covers a total area of 450 square meters, of which, clean room area of 200 square meters, and cleanliness is up to 100,000 levels. The centre undertakes filtration technology inspection and testing for in-house science research, production and industry service.   

♦On-line particle counter of BETAB-HIAC/POYCO type (8000A/8000S) provided by HIAC/POYCO company in USA, and its supporting machine"Multi-pass test" and "single-pass test" implements ISO16889 new standard and other international standards perfectly.

♦Testing center also has the developed equiment for filter performance testing, which can make the comprehensive examination for filter element/cartridge performance. These can insure that company’s filter with high capacity, long life, high reliable in full compliance with our customer's  requirement.

♦The testing centre can take 7 tests of hydraulic filter performance evaluation, they are as follows:

ISO 2941 Verification of collapse/burst resistance

ISO 2942 Verification of fabrication integrity and determination of the first bubble point

ISO 2943 Verification of material compatibility with fluids

ISO 3723 Method for end load testing

ISO 3724 Verification of flow fatigue characteristics

ISO 3968 Evaluation of pressure drop versus flow characteristics

ISO 16889 Multi-Pass method for evaluating filtration performance

Our Advantages:

1) Adopting the new industrial concept

2) Establishing world-class R&D and testing center

3) Possessing powerful technical force and R&D strength

4) Having the world's advanced production equipment

5) Producing high quality products that comply with international and national standards

6) Outstanding quality products to meet or exceed customer's expectation

7) Professional and wholehearted pre-market after-sales service

♦Our product mainly interchangeable with following brand  

PALL, HYDAC, MAHLE, PARKER, ARGO, FILTREC, STAUFF, VICKERS, EPPENSTEINER(EPE),TAISEI KOGYO, INTERNORMEN, MANN, DONALDSON, HY-PRO, MP-FILTRI, CAT, BENZ, VOLVO, CUMMINS, ALLISON,CLARK, EPE, SCHROEDER, LIEBHERR, DOOSAN, KOBELCO, JCB, FIEETGUARD, DEUTZ, SOFIMA, DETROIT, SACMI, KUBOTA,SAKURA, WIRTGEN, FAIFILTRI, SCHAEFF, POCLAIN, LUBERFINER, DYNAPAC, PALFINGER, SOFRANCE, VALMET, CECCATO, BOBCA, MCQUDY, COMMERCIAL, TAMROCK, SAUER-DANFOSS, PERKINS, JP-HBYB, LINDE