Specifications

SDRLF Hydraulic Duplex Oil Return Line Filter
Novel design,convenient installation,high oil-passing capacity

Elegant Shape SDRLF Pressure Hydraulic Return Duplex Oil Strainer for Mining Machinery Accessories

1. Product Introduction                                                                       

SDRLF duplex large flow filter serie is with simple structure, the filter elements can be cleaned or replaced under continuous work to ensure normal operation of the equipment.  

2. Product Characteristics                                                                   

Filter basic construction

The characteristics of this filter are that the continuous operation is allowed even during element is changed for which is clogged by contaminants,

only need to open the balance valve and then turn the directional valve, the other filter begins to work, the clogged element should be changed in time.

This series filters are widely applied on hydraulic systems of heavy machinery, mining machinery, metallurgical machinery etc.  

2.1 Housing material

Carbon steel   

2.2 Seals 

Perbunan (= NBR)  

2.3 Filter element

Filter medium material

High strength carbon steel skeleton

2.4 Optional accessories

Combined visual/electrical clogging indicator   

2.5  Type of connection  

Chosen as per filter models  

2.6 Symbols 

 

3. Type Selection and Technical Data                                                 

3.1 Order example

 

3.2 Technical Data

Model

Nomal Flow Rate (L/min)

Dia (mm)

Nominal Pressure (bar)

Pressure Loss (bar)

Filtration Rating ( μm )

Cracking Pressure  of the Bypass Valve (bar)

Type of Indicator

Model of Filter Element

Quantity

Weight (kg)

Inital

Max

SDRLF

1300

100

16 bar

1 bar

3.5 bar

Optional 3,5,10,20,30...     βx(c) optional 75,100,200,1000, in accordance with ISO 16889

Setting 4 bar

P=CS-V with CS-V Indicator   Without Indicator =With Plug

SFX-1300x*

1x2

610

2600

150

SFX-2600x*

2x2

820

3900

200

SFX-3900x*

3x2

850

6500

250

SFX-6500x*

5x2

915

7800

250

SFX-7800x*

6x2

960

9100

250

SFX-9100x*

7x2

990

4. Mounting Size                                                                                 

   

External conecting flange dimension

          

    About 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.

  

Qualification and Honor of DFFILTRI China's Quality Recognized Top Ten Well-known Filter Brand 19 years OEM Manufacturing Experience Testing Center-The Committee of Filtration & Separation of China Technology Market Association "The First Vice-chairman Unit” awarded by Xinxiang Filtration & Separation Industry Association

    Our Strategic Partners                                                                 

 

P.S These are just part of our clients, in no particular order.