MAHLE Pi 1607 Series User manual

Suction Filter
Pi 160
1. Features
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High performance filters for modern hydraulic systems
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■Modular system
■Compact design
■Minimal pressure drop through optimal flow design
■Visual/electrical/electronic maintenance indicator
■Threaded connections
■Vacuum gauge serial production
■Quality filters, easy to service
■Quick-lock design and shut off valve
■Equipped with highly efficient glass fibre Sm-x filter elements
■Beta rated elements according to ISO 16889 multipass test
■Elements with high differential pressure stability and dirt holding
capacity
■NPT- and SAE-connections on request
■Worldwide distribution

Suction Filter Pi 160 up to NG 315 2
2. Flow rate/pressure drop curve complete filter
y = differential pressure ∆p [bar]
x = flow rate V [l/min]
3. Symbols

Suction Filter Pi 160 up to NG 315 3
4. Order numbers
Example for ordering filters:
1. Housing design 2. Filter element
V=100 l/min, pressure gauge,
Type: Pi 1615-366
Order number: 77774813
Sm-x 25
Type: 852 754 Sm-x 25
Order number: 77730195
4.1 Housing design
Nominal size*
NG [l/min]
Sm-x + Mic/Drg Order number Type with vacuum gauge
with
vacuum switch
230V
with
vacuum switch
42V
77774854 Pi 1607-166
77774847 Pi 1607-16580/100
77774714 Pi 1607-170
77774839 Pi 1615-166
77774821 Pi 1615-165
77774706 Pi 1615-170
77774813 Pi 1615-366
77774805 Pi 1615-365
77774730 Pi 1615-370
77774797 Pi 1615-466
77774789 Pi 1615-465
100/160
77774722 Pi 1615-470
77874480 Pi 1620-366
77874498 Pi 1620-365160/315
77874506 Pi 1620-370
* at operational viscosity (33 mm2/s); Sm-x 25 (T20(c) y 200) and ∆p ≤0.1 bar
4.2 Filter element
Nominal size
NG [l/min] Order number Type Filter material Filter surface [cm²]
77729338 852 753 Mic 10 Mic 10 5700
77729429 852 753 Mic 25 Mic 25 570080
77729577 852 753 Sm-x 25 Sm-x 25 3750
77729387 852 754 Mic 10 Mic 10 15850
77729445 852 754 Mic 25 Mic 25 15850100
77730195 852 754 Sm-x 25 Sm-x 25 10400
77874514 852 821 Mic 10 Mic 10 16750
77874522 852 821 Mic 25 Mic 25 16750160
77874530 852 821 Sm-x 25 Sm-x 25 11000
4.3 Filter elements wire mesh
Nominal size*
NG [l/min] Order number Type Filter material Filter surface [cm²]
77862345 852 753 Drg 60 Drg 60 2300
100 77729486 852 753 Drg 100 Drg 100 2300
77862352 852 754 Drg 60 Drg 60 6250
160 77729528 852 754 Drg 100 Drg 100 6250
77874548 852 821 Drg 60 Drg 60 6650
315 77874555 852 821 Drg 100 Drg 100 6650
* at operational viscosity (33 mm2/s) and Drg 100

Suction Filter Pi 160 up to NG 315 4
5. Technical specifications
Design: suction filter with shut off valve
Installation: horizontally under oil level
or vertically above oil level
with optional extension pipe
Temperature range: -10 °C to +120 °C
(other temperature ranges on request)
Filter head material: GDAL
Filter housing material: St
Sealing material: NBR/AL
Indicating range
vacuum meter: -1 bar to 1.5 bar
Pressure setting vacuum switch: -200 mbar
Electrical data of vacuum switch (PiS 3070):
Maximum voltage: 230 V~/=
Maximum current on contact: 6 A
Contact: change-over switch
Electrical connections: AMP 6.3 DIN 46248
for bushings according to
DIN 46247
Fitting position: any fitting positions possible
(fitting position has to be defined
when ordering indicators with
defined switch point)
Type of protection: IP 00 - without protecting cap
IP 54 - with protecting cap
Vacuum switch 42 V (HES 2200 BP)
Contact: normally open
Breaking capacity: 42 V/6 W as ohmic resistor
Type of protection: IP 54 – with protecting cap
Electrical connections: AMP 6.3 DIN 46248 for re-
ceptacle for tabs according to
connection method, 2 pole
Connecting plan
1 supply line
2 operating contact
3 normally closed contact
4 adjusting screw
Wedrawattentiontothefactthatallvaluesindicatedareaverageva-
lues which do not always occur in specific cases of application. Our
products are continually being further developed. Values, dimensi-
ons and weights can change as a result of this. Our specialized de-
partment will be pleased to offer you advice.
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Werecommendto contact us concerning applications of our filtersin
areas governed by the EU Directive 94/9 EC (ATEX 95). The stan-
dard version can be used for liquids based on mineral oil (correspon-
ding to the fluids in Group 2 of Directive 97/23 EC Article 9). If you
consider to use other fluids please contact us for additional support.
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Subject to technical alteration without prior notice.
.
*1 Extension pipe available upon request
*2 Extention height min.

Suction Filter Pi 160 up to NG 315 5
6. Dimensions
Dimension Pi 1607-... Pi 1615-... Pi 1615-... Pi 1615-... Pi 1620-...
O/P 110/64 166 110/64 166 110/64 366 110/64 466 110/64 366
O/P 135/71 165 135/71 165 135/71 365 135/71 465 135/71 365
O/P 130/55 170 130/55 170 130/55 370 130/55 470 130/55 370
Fig. 4 4 2 3 1
A G1½ G2 SAE 2" 2 x G1 SAE 3"
B 56 68 41
C 87 87 87 87 95
D 49 49 53 53 73
E 46 46 50 50 70
F 144 144 144 144 182
G 178 471 471 471 433
H 322 615 615 615 615
I 375 680 680 680 710
J 60
K 77,8 106.4
L 42.9 61.9
M M12 M16
N 50 76
Weight [kg] 2.7 3.5 3.5 3.5 5.0
7. Installation, operating and maintenance instructions
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7.1 Filter installation
When installing the filter make sure that sufficient space is available
toremovethefilterelementandthefilterhousing.Preferablythefilter
should be installed with the housing pointing downwards.
The maintenance indicator must be visible.
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7.2 When should the filter element be replaced or cleaned?
Filtersequippedwithvisualandelectricalmaintenanceindicator:Du-
ring cold starts, the indicator may give a warning signal. If vacuum-
meter shows > 0,2 bar or the electrical signal has not switched off
after reaching operating temperature, the filter element must be re-
placed or cleaned after the end of the shift. Please always ensure
that you have original MAHLE spare elements in stock: Disposable
elements (Mic or Sm-x) cannot be cleaned.
7.3 Element replacement
1 . Stop system and relieve filter from pressure.
2 . Unscrew nuts, turn cover counter-clockwise and pull. Unscrew
element from support.
3 . Check O-ring on the filter for damage. Replace, if neccessary.
4 . Make sure that the order number on the spare element corre-
sponds to the order number of the filter name-plate.
5 . Complete installation.
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7.4 Cleaning methods for cleanable elements
a) Ultrasonic cleaning
Insert the contaminated suction filter element into an ultrasonic bath
for approx. 3 minutes; then rinse in clean liquid. Afterwards, blow air
into the filter from the clean side inward.
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b) Manual cleaning
1 . Remove coarse external contamination in a separate cleaning
tank using a brush and cleaning agent.
2 . Place filter in unused cleaning liquid (approx. 20 min)
3 . Wash filter with cleaning liquid from the outside to the inside.
4 . Dry element with pressured-air from the clean side to the dirt
side; the cleaning efficiency is about 60–70%
Using either method, be sure that no dirt is washed on to the clean
side of filter.

Suction Filter Pi 160 up to NG 315 6
8. Spare parts list
Order numbers for spare parts
Position Type Order number
Vacuum switch 230 V
(PiS 3070/200 mbar) 77669724
Vacuum switch 42 V (HES 2200
BP) 78308892
Pressure gauge
(-1 to 1.5 bar) 77548027
Seal kit for filter housing + filter element
NBR 77874563
FPM 77904840
EPDM 77904857
MAHLE Filtersysteme GmbH
Industriefiltration
Schleifbachweg 45
D-74613 Öhringen
Phone [phone]
Fax [phone]
[email protected]
www.mahle-industrialfiltration.com
78356396.03/2008