RFLD Duplex Line Filter for Hydraulic System

Specifications

           RFLD Duplex Line Filter for Hydraulic System  

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.

♦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