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DESCRIPTION
During the system operation, the pressure drop through the fi lter increases as the element clogs, due to the contaminant retained.The fi lter element must be replaced when clogged and anyway before the pressure drop reaches the bypass valve set value.For this reason it is recommended a clogging indicator on the fi lter. It gives a visual or electrical indication and must have a set value lower than the bypass valve set value, to get an exact indication of the right time for fi lter element replacement.
On return and low pressure fi lters the clogging indicator can be a pressure gauge or a pressure switch, measuring the pressure upstream the fi lter. On some return fi lters and on high pressure fi lters, the clogging indicator can be of differential type: measuring the pressure upstream and downstream the fi lter and activating a signal when the differential pressure reaches the set value.On suction fi lters the clogging indicator is a vacuum gauge or a vacuum switch, measuring the depressure downstream the fi lter.All the UFI fi lters have the port for the indicator as a standard feature; if the fi lter is ordered without indicator the port is plugged with a removeable plug allowing the indicator to be added easily at any time.
Pressure gaugesPressure switchesDifferential, visualDifferential, electricalDifferential, el. + LEDDifferential, el. + thermostatDifferential, el. + visualDifferential, el. ATEX
RETURN FILTERS INDICATORS
Pressure gaugesPressure switchesDifferential, visualDifferential, electricalDifferential, el. + LEDDifferential, el. + thermostatDifferential, el. + visualDifferential, el. Vandal proofDifferential, el. ATEX
PRESSURE FILTERS INDICATORS
CLOGGINGINDICATORS
S U M M I N G - U P
Vacuum gaugesVacuum switches
SUCTION FILTERS INDICATORS
Differential, visualDifferential, electricalDifferential, el. + LEDDifferential, el. + thermostatDifferential, el. + visualDifferential, el. ATEX
OFF-LINE FILTERS INDICATORS
PRESSURE INDICATION DIFFERENTIAL PRESSURE INDICATION
INDICATOR SERIES DESCRIPTION FOR PRESSURE FILTERS SERIES
NBR FKM
31 PE - PHScale 0÷12 bar (0÷1,2 MPa)-
ø 40
1/8”
31
12Pressure gauge
NBR FKM
U0 for FPE A+, B+Setting 1,3 bar (130 kPa)W0
32 20
M14
Differential VISUAL indicator
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
35,5
30
ø 30
M20 x 1,5
NBR FKM
5B PHSetting 1,3 bar (130 kPa)
Differential VISUAL indicators
AB
5D (PA - PB - PD - PL - PM)Setting 2,5 bar (250 kPa)AD
5E PA - PB - PC - PD - PL - PM
PA - PB - PC - PD - PL - PM
Setting 5 bar (500 kPa)AE
5F Setting 8 bar (800 kPa)AF Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
NBR FKM
N0 for FPE A+, B+Setting 1,3 bar (130 kPa)S0N.C.N.O.
63,5
35
27
M14
Differential VISUAL ELECTRICAL indicator
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
INDICATORS FOR PRESSURE FILTERS
PA - PB - PC - PD - PL - PM
PA - PB - PC - PD - PL - PM
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
NBR FKM
6B PHSetting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators
CB
6D (PA - PB - PD - PL - PM)Setting 2,5 bar (250 kPa)CD
6E Setting 5 bar (500 kPa)CE
6F Setting 8 bar (800 kPa)CF
N.C.N.O.
64,5
30
4835
M20 x 1,5Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
NBR FKM
P1 PE - PHSetting 1,5 bar (150 kPa)-1
4 2
Pressure switch
SPDT, Max voltage 250V - 50 Hz - Max current 6 A resistive, 1 A inductive - Protection IP65 connector DIN 43650
ATEX 3 GD EEx e T6
977
1/8”
24
CLOGGING INDICATORSS U M M I N G U P
PA - PB - PC - PD - PL - PM
PA - PB - PC - PD - PL - PM
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
NBR FKM
70 PHSetting 1,3 bar (130 kPa)
Differential VISUAL ELECTRICAL indicators
E0
76 Setting 2,5 bar (250 kPa)E6
72 Setting 5 bar (500 kPa)E2
73 Setting 8 bar (800 kPa)E3
70
48
30M20 x 1,5
O
30°C
O(PA - PB - PD - PL - PM)
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
PA - PB - PC - PD - PL - PM
PA - PB - PC - PD - PL - PM
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
NBR FKM
T0 PHSetting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators with THERMOSTAT 30° C
DB
T2 Setting 5 bar (500 kPa)DE
T3 Setting 8 bar (800 kPa)DF
T6 Setting 2,5 bar (250 kPa)DD70
59
32
M20 x 1,5
O
30°C
O
(PA - PB - PD - PL - PM)
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
PA - PB - PC - PD - PL - PM
PA - PB - PC - PD - PL - PM
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
G R231+
4-
N.C.N.O.C
NBR FKM
7B PHSetting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators with LED (24 V) for visual indication
EB
7D Setting 2,5 bar (250 kPa)ED
7E Setting 5 bar (500 kPa)EE
7F Setting 8 bar (800 kPa)EF
64,5
30
4835
M20 x 1,5
(PA - PB - PD - PL - PM)
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
NBR FKM
008.0240.2
008.0239.2Setting 2,5 bar (250 kPa)
Setting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators ATEX
-
-
008.0235.2 Setting 5 bar (500 kPa)-
008.0212.2 Setting 8 bar (800 kPa)-
N.C.N.O.
5631
24
27
ø 27,5
35
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650 M20x1,5
PA - PB - PC - PD - PL - PM
PA - PB - PC - PD - PL - PM
PA - PB - PD - PL - PM
(PA - PB - PD - PL - PM)
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
ATEX 3 GD EEx e T6
INDICATOR SERIES DESCRIPTION FOR PRESSURE FILTERS SERIES
NBR FKM
M2 Setting 5 bar (500 kPa)
Differential ELECTRICAL indicators VANDAL PROOF
-
M3 Setting 8 bar (800 kPa)-
M6 Setting 2,5 bar (250 kPa)- 5076
REED SWITCH
32
98
106
M20
x1,5
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
PA - PB - PC - PD - PL - PM
PA - PB - PC - PD - PL - PM
(PA - PB - PD - PL - PM)
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
NO
PRESSURE INDICATION DIFFERENTIAL PRESSURE INDICATION
INDICATORS FOR RETURN FILTERS
NBR FKM
6B RFSetting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators
CB
6C RDSetting 2 bar (200 kPa)CC
N.C.N.O.64
,5
30
4835
M20 x 1,5SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650 Re
com
men
ded
tight
enin
g to
rque
90
Nm
NBR FKM
32 RA - RB - RC - RF - RHScale 0÷6 bar (0÷600 kPa)-
ø 40 30
1/8”
Pressure gauge
35,5
30
ø 30
M20 x 1,5
NBR FKM
5B RFSetting 1,3 bar (130 kPa)
Differential VISUAL indicators
AB
5C RDSetting 2 bar (200 kPa)AC
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650 Re
com
men
ded
tight
enin
g to
rque
90
Nm
INDICATOR SERIES DESCRIPTION FOR RETURN FILTERS SERIES
NBR FKM
30 RA - RB - RC - RF - RHScale 0÷6 bar (0÷600 kPa)-
ø 40
1/8”
31
12
Pressure gauge
NBR FKM
P1 RA - RB - RC - RHSetting 1,5 bar (150 kPa) - SPDT
Pressure switch
-
P2 RF - W executionSetting 3 bar (300 kPa) - SPDT-
P4 RFSetting 1,3 bar (130 kPa) - SPDT-
P6 RBSetting 2 bar (200 kPa) - SPDT-
1
4 2
SPDT, Max voltage 250V - 50 Hz - Max current 6 A resistive, 1 A inductive - Protection IP65 connector DIN 43650
ATEX 3 GD EEx e T6
977
1/8”
24
S U M M I N G U P
G R231+
4-
N.C.N.O.C
NBR FKM
7B RFSetting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators with LED (24 V) for visual indication
EB
7C RDSetting 2 bar (200 kPa)EC
64,5
30
4835
M20 x 1,5SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
NBR FKM
70 RFSetting 1,3 bar (130 kPa)
Differential VISUAL ELECTRICAL indicators
E0
71 RDSetting 2 bar (200 kPa)E1
70
48
30M20 x 1,5
O
30°C
O
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
NBR FKM
008.0234.2
008.0239.2
RD
RF
Setting 2 bar (200 kPa)
Setting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators ATEX
-
-N.C.N.O.
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
5631
24
27
ø 27,5
35
M20x1,5Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
ATEX 3 GD EEx e T6
INDICATOR SERIES DESCRIPTION FOR RETURN FILTERS SERIES
CLOGGING INDICATORS
NBR FKM
T0 RFSetting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators with THERMOSTAT 30° C
DB
T1 RDSetting 2 bar (200 kPa)DC70
59
32
M20 x 1,5SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650 Re
com
men
ded
tight
enin
g to
rque
90
Nm
O
30°C
O
PRESSURE INDICATION DIFFERENTIAL PRESSURE INDICATION
35,5
30
ø 30
M20 x 1,5
NBR FKM
5B OF - UOWSetting 1,3 bar (130 kPa)
Differential VISUAL indicators
AB
INDICATORS FOR OFF-LINE FILTERS
INDICATOR SERIES DESCRIPTION FOR RETURN OFF-LINE SERIES
NBR FKM
008.0239.2 OF - UOWSetting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators ATEX
-
N.C.N.O.
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
NBR FKM
70 OF - UOWSetting 1,3 bar (130 kPa)
Differential VISUAL ELECTRICAL indicators
E0
70
48
30M20 x 1,5
O
30°C
O
SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
NBR FKM
T0 OF - UOWSetting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators with THERMOSTAT 30° C
DB
70
59
32
M20 x 1,5SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
G R231+
4-
N.C.N.O.C
NBR FKM
7B OF - UOWSetting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators with LED (24 V) for visual indication
EB
64,5
30
4835
M20 x 1,5SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
NBR FKM
6B OF - UOWSetting 1,3 bar (130 kPa)
Differential ELECTRICAL indicators
CBN.C.N.O.
64,5
30
4835
M20 x 1,5SPDT differential switch. C.C. 14 - 30 V: > max resistive or inductive load 4 - 3 A respectivelyC.A. 125-250 V: > max resistive or inductive load 1 A - Protection IP65 - Connector DIN 43650
5631
24
27
ø 27,5
35
M20x1,5
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
Reco
mm
ende
d tig
hten
ing
torq
ue 9
0 Nm
ATEX 3 GD EEx e T6
O
30°C
O
ø 40
31
1/8”
12
NBR FKM
10 SC - SD - SEVacuum gauge-
NBR FKM
11 SC - SD Vacuum gauge-
ø 40
1/8”
30
NBR FKM
91 SC - SD - SE Vacuum switchSetting 0,2 bar (20 kPa)SPDT
-
Tech
nica
l dat
a su
bjec
t to
varia
tions
with
out p
rior n
otic
e.
IND
ICAT
OR
S -
EN
- 02
/201
6
INDICATORS FOR SUCTION FILTERS
INDICATOR SERIES DESCRIPTION FOR SUCTION FILTERS SERIES
S U M M I N G U P
SPDT, Max voltage 250V - 50 Hz - Max current 6 A resistive, 1 A inductive - Protection IP65 connector DIN 43650
ATEX 3 GD EEx e T6
977
1/8”
24
CLOGGING INDICATORS
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