8700
7250
5800
Description
Application
In the high pressure circuits of hydraulic systems.
Performance features
Protection
against wear: By means of filter elements that, in full-flow filtration,
meet even the highest demands regarding cleanliness
classes.
Protection against
malfunction: Through installation near to the control valves or other
expensive components. The specific determined flow
rate guarantees a closed by-pass valve even
at ν ≤ 930 SUS (cold start condition).
Filter elements
Flow direction from outside to center. The star-shaped pleating of the filter
material results in:
• largeltersurfaces
• lowpressuredrop
• highdirt-holdingcapacities
• longservicelife
Filter maintenance
By using a clogging indicator the correct moment for maintenance is stated
and guarantees the optimum utilization of the filter life.
Materials
Filter bowl: Cold extruded steel
Coating: Powder paint
Seals: NBR (FKM on request)
Filter media: EXAPOR
®
MAX 2 - inorganic multi-layer microfiber web
Accessories
To monitor the clogging, screw-in (see section Dimensions) or
flange-mounted differential pressure switches are available.
Flange-mounted clogging indicators optionally with one or two switching
points resp. temperature suppression – Dimensions and technical data
see catalog sheet 60.30.
Operating pressure
0 ... 5800 psi, min. 2 x 10
6
pressure cycles
Nominal pressure according to DIN 24550
0 ... 9137 psi, min. 10
4
pressure cycles
Quasi-static operating pressure
Permissible pressures for other numbers of cycles
Nominal flow rate
Up to 118.9 gpm (see Selection Chart, column 2)
The nominal flow rates indicated by ARGO-HYTOS are based on the
following features:
• closedby-passvalveatν ≤ 930 SUS
• elementservicelife>1,000operatinghoursatanaverageuid
contamination of 0.27 g per gpm flow volume
• owvelocityintheconnectionlines:
up to 3626 psi ≤ 26.3 ft/s
>3626psi≤ 39.4 ft/s
Filter fineness
5 µm(c) ... 16 µm(c)
β-values according to ISO 16889
(see Selection Chart, column 4 and diagram Dx)
Dirt-holding capacity
Values in g test dust ISO MTD according to ISO 16889
(see Selection Chart, column 5)
Hydraulic fluids
Mineral oil and biodegradable fluids
(HEES and HETG, see info-sheet 00.20).
Temperature range
- 22 °F ... + 212 °F (temporary - 40 °F ... + 248 °F)
Viscosity at nominal flow rate
• at operating temperature: ν < 280 SUS
• asstartingviscosity ν
max
= 5560 SUS
• atinitialoperation: Therecommendedstartingviscositycanbe
read from the diagram D (pressure drop as
a function of the kinematic viscosity) as
follows: Find the 70 % ∆p of the cracking
pressure of the by-pass valve on the vertical
axis. Draw a horizontal line so that it inter-
sects the ∆p curve at a point. Read this point
on the horizontal axis for the viscosity.
Mounting position
Preferably vertical
Characteristics
Operating pressure p [psi]
Number of cycles n