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Duplex Filter Pi 370 up to NG 450
6
8. Technical specifications
Design:
line mounting filter
Operating pressure:
Pi 3705 - Pi 3711
10^7 load changes 250 bar (3620
psi)
10^6 load changes 315 bar (4570
psi)
Pi 3715 - Pi 3745
2x 10^6 load changes 210 bar
(3040 psi)
Test pressure:
Pi 3705 - Pi 3711
450 bar (6520 psi)
Pi 3715 - Pi 3745
300 bar (4350 psi)
Pi 3705 - Pi 3745 when use on
ships operating/test pressure
200/260 bar (2900/3770 psi)
Temperature range:
-10 °C to +120 °C
(other temperature ranges on request)
Bypass opening pressure:
∆
p 7 bar
±
10 %
Filter head material:
GGG
Filter bowl material:
St
Sealing material:
NBR/PTFE
Activating pressure of optic-
al/electrical differential pressure
indicator
∆
p 5 bar
± 1
0 %
Electrical data of contamination indicator:
Maximum voltage:
250 V AC/200 V DC
Maximum current on contact:
1 A
Inrush current:
70 W
Type of protection:
IP 65 when inserted
and secured
Contact:
bistable
Cable connection:
M20x1.5
The switching function can be changed by turning the electric upper
part by 180° (normally closed contact or normally open contact). The
state on delivery is a normally closed contact. The use of quench-
ing circuits must be checked in the case of inductivity in the DC cur-
rent circuit. The contamination indicator data sheet contains further
information and additional contamination indicator versions.
-
We draw attention to the fact that all values indicated are average
values which do not always occur in specific cases of application.
Our products are continually being further developed. Values, di-
mensions and weights can change as a result of this. Our special-
ized department will be pleased to offer you advice.
-
We recommend you to contact us concerning applications of our fil-
ters in areas governed by the EU Directive 94/9 EC (ATEX 95). The
standard version can be used for liquids based on mineral oil (cor-
responding 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.
*1 Pi 3730-Pi 3745 with drain screw G¼ DIN 910
9. Dimensions
All dimensions except "C" in mm.
Type
A
B
C*
D
E
F
Weight
[kg]
Pi 3705
78
38
G1
219
271
80
11.0
Pi 3708
78
38
G1
294
346
80
12.0
Pi 3711
78
38
G1
370
422
80
15.0
Pi 3715
78
50
G1½
302
354
110
31.5
Pi 3730
78
50
G1½
427
479
110
37.0
Pi 3745
78
50
G1½
543
595
110
41.5
* SAE flange connection on request.
LEER
Subject to technical alteration without prior notice.
Type
G
SW
H
I
J
K
L
M
N
O
P
R
S
T
U
Weight
[kg]
Pi 3705
27
65
144
45
182
M8x15
55
90
45
100
86
-
-
-
11.0
Pi 3708
27
65
144
45
182
M8x15
55
90
45
100
86
-
-
-
12.0
Pi 3711
27
65
144
45
182
M8x15
55
90
45
100
86
-
-
-
15.0
Pi 3715
30
110
175
70
280
M12x18
62
140
45
210
136
-
-
-
31.5
Pi 3730
30
110
175
70
280
M12x18
62
140
45
210
136
-
-
-
37.0
Pi 3745
30
110
175
70
280
M12x18
62
140
45
210
136 35.7 69.85
M12x20
41.5