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High Pressure Inline Filter DF Series
1.Technical Specification
1.1 Filter Housing
Construction
SDDF series filters consist of a filter head with a screw-in filter bowl. 1-piece filter bowl for size 660 and below; 2-piece filter bowl for size 990 and above
Standard filters are without bypass valve.
Material
SDDF series
Filter head: nodular cast iron
Filter bowl: carbon steel
Seals: NBR
Special type
-With bypass valve
-Oil drain screw up to SDDF280
-Seals in FPM
Accessories
Visual and (or) electrical clogging indicator, clogging indicators should be fixed with corresponding torque values. (See Spare parts and maintenance list)
Flange connection
-SAE-flange connection
1.2 Filter Element
Cleanness of element
Notes: Only wire mesh and stainless steel fiber material can be cleaned. BN/HC and BH/HC cannot be cleaned.
2.Parameter
2.1 General
Name & Photo
SDDF series high pressure filter
2.1.2 Structure
Inline filter
2.1.3 Mounting
By four screws on the filter head
Allowable differential pressure of filter element
BH/HC: 210 bar
BN/HC: 25 bar
V: 210 bar
W: 30 bar
Compatibility with hydraulic fluids
Mineral oils: test standard according to ISO 2943
Lubrication oils: test standard according to ISO 2943
It can be used for non-flame fluids, synthetic oils and rapidly biodegradable fluids. For water or other application, please contact us.
Fatigue strength (according to 3724)
With two ends cap and fixed filter media, fatigue strength increases.
Pressure setting of clogging indicator
ΔPa=5 bar-10%
Cracking pressure of bypass
ΔPa=6bar+10%
2.2 Parameter
Working pressure & working temperature
Usually, allowable working pressure is related to working temperature, that, is,
δ min...δ max...=-10℃...+100℃
SDDF30-6603): Pmax=420bar
SDDF660-13202): Pmax=315bar
(420bar on request)
δ min...δ max…=-30℃...-10℃
SDDF30-6603): Pmax=210bar
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