Duplex Filter Pi 281 NG 1250 up to 8000
4
7. Type code and order numbers
Pi 281125/21-058/852 888 PS 10
Pi 281
125
/2
1
-058
/825 888 PS 10
1
2
3
4
5
6
1 Filter type
2 Size/Connections
Connection flange
(In, Out): DIN EN 1092-1
125 = 1250 l/min - DN 100
180 = 1800 l/min - DN 125
350 = 3500 l/min - DN 150
600 = 6000 l/min - DN 200
800 = 8000 l/min - DN 250
3 Nominal pressure
1 = 10 bar
2 = 16 bar
4 Number of elements
1 per filter side from NG 1250 up to NG 1800,
3 per filter side from NG 3500 up to NG 6000,
4 per filter side at NG 8000
5 Housing design
058 = with bypass valve and electrical maintenance indicator
069 = electrical maintenance indicator
6 Filter element
Filter element type and filter rating
Filters DN 100 and DN 125 optional, DN 150 up to DN 250 standard with cover lifting device.
7.1 Housing design
Nominal size
NG
[l/min]
Type
Number
of elements
per filter side and
element type
Pressure
[bar]
with bypass
valve and
electrical
indicator
with
electrical
indicator
281125/11-058
281125/11-069
10
281125/21-058
1250
281125/21-069
1x 852 888
16
281180/11-058
281180/11-069
10
281180/21-058
1800
281180/21-069
1x 852 884
16
281350/13-058
281350/13-069
10
281350/23-058
3500
281350/23-069
3x 852 888
16
281600/13-058
281600/13-069
10
281600/23-058
6000
281600/23-069
3x 852 884
16
281800/14-058
281800/14-069
10
281800/24-058
8000
281800/24-069
4x 852 884
16
