CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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Page 177
Overview
Clogging Indicators
EVOTEK Clogging Indicators
Technical Specifications
Depending on the type of filter, vacuum, return line or differential pressure clogging indicators
are used.
These type of devices can be provided with a visual, electrical or both signals.
Return line and suction indicators
These are used for return line and suction filters. In return line filters they react to the increasing
static pressure before the filter element, and in suction filters to the decreasing pressure after
the filter element, which is caused by increasing contamination.
Differential pressure indicators
Differential pressure indicators operate by sensing the differential pressure between ports
upstream and downstream of the filter element.
These are used for all inline filters and react to the increasing pressure differential caused by
increasing contamination of the filter element.
Product Description
• Clogging indicators are designed to indicate
visually and/or electrically when the filter
elements must be cleaned or changed.
• Clogging indicators measure the pressure
drop through the filter element directly
connected to the filter housing
• Indicate when the filter element is becoming
blocked and needs to be changed.
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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VACUUM
Page 178
Vacuum gauges
Type Description Connection Indicator
VA Axial vacuum gauge 1/8” NPT -1 – 0 bar
VR Radial vacuum gauge 1/8” NPT -1 – 0 bar
Material: steel housing
Seals: NBR
Temperature range: -10°C to 100°C
Electrical Vacuum Indicator
Operating pressure: max. 20 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 250 V AC, 1 A
Type Description Connection Indicator
S03 Vacuum switch 1/8” NPT -0.3 bar
S02 Vacuum switch 1/8” NPT -0.2 bar
Vacuum Indicators
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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Page 179
VACUUM
Electrical/Visual Vacuum Indicator
Vacuum Indicators
Operating pressure: max. 20 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 250 V AC, 1 A
Type Description Connection Indicator
S03LED Vacuum switch 1/8” NPT -0.3 bar
S02LED Vacuum switch 1/8” NPT -0.2 bar
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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PRESSURE
Page 180
Pressure gauges
Type Description Connection Indicator
PA Axial pressure gauge 1/8” NPT 0– 10 bar
PR Radial pressure gauge 1/8” NPT 0– 10 bar
PZ Axial pressure gauge 1/8” NPT 0– 4 bar
PS Radial pressure gauge 1/8” NPT 0– 4 bar
Material: steel housing
Seals: NBR
Temperature range: -10°C to 100°C
Electrical Pressure Switch
Operating pressure: max. 20 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 250 V AC, 1 A
Type Description Connection Indicator
R13
Electrical Pressure Switch
1/8” NPT 1.3 bar
R15
Electrical Pressure Switch
1/8” NPT 1.5 bar
R20
Electrical Pressure Switch
1/8” NPT 2.0 bar
R35
Electrical Pressure Switch
1/8” NPT 3.5 bar
Return Line Indicators
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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Page 181
PRESSURE
Visual Indicator and Electrical Switch
Return Line Indicators
Operating pressure: max. 20 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 24 VDC, 10W
Type Description Connection Indicator
R13LED
Electrical Pressure Switch
1/8” NPT 1.3 bar
R15LED
Electrical Pressure Switch
1/8” NPT 1.5 bar
R20LED
Electrical Pressure Switch
1/8” NPT 2.0 bar
R35LED
Electrical Pressure Switch
1/8” NPT 3.5 bar
Electrical Pressure Switch
Operating pressure: max. 20 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 250 V AC, 1 A
Type Description Connection Indicator
2RE Electrical Pressure Switch 1/2” BSP 2.0 bar
3RE
Electrical Pressure Switch
1/2” BSP 3.0bar
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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PRESSURE
Page 182
Visual Indicator and Electrical Switch
Return Line Indicators
Operating pressure: max. 20 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 24 VDC, 10W
Type Description Connection Indicator
2RELED
Electrical Pressure Switch
1/2” BSP 2.0 bar
3RELED
Electrical Pressure Switch
1/2” BSP 3.0 bar
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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Page 183
Differential
Visual Differential Indicator
Differential Pressure Indicators
Operating pressure: max. 420 bar
Seals: NBR
Temperature range: -10°C to 100°C
Type Description Connection Indicator
2PV
Visual Differential Indicator
1/2” BSP 2.0 bar
5PV
Visual Differential Indicator
1/2” BSP 5.0bar
8PV
Visual Differential Indicator
1/2” BSP 8.0 bar
Visual Differential Indicator
Operating pressure: max. 420 bar
Seals: NBR
Temperature range: -10°C to 100°C
Type Description Connection Indicator
V13
Visual Differential
Indicator M20x1.5
1.3 bar
V20
Visual Differential
Indicator M20x1.5
2.0 bar
V25
Visual Differential
Indicator M20x1.5
2.5 bar
V50
Visual Differential
Indicator M20x1.5
5.0 bar
V80
Visual Differential
Indicator M20x1.5
8.0 bar
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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Differential
Page 184
Visual Differential Indicator
Differential Pressure Indicators
Operating pressure: max. 420 bar
Seals: NBR
Temperature range: -10°C to 100°C
Type Description Connection Indicator
X25
Visual Differential
Indicator M20x1.5
2.5 bar
X50
Visual Differential
Indicator M20x1.5
5.0 bar
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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Page 185
Differential
Electric Differential Pressure Indicator
Differential Pressure Indicators
Operating pressure: max. 420 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 250 V AC, 1 A
Type Description Connection Indicator
2PE
Electric differential pressure indicator
1/2” BSP 2.0 bar
5PE
Electric differential pressure indicator
1/2” BSP 5.0 bar
8PE
Electric differential pressure indicator
1/2” BSP 8.0 bar
Electric Differential Pressure Indicator
Type Description Connection Indicator
E20T
Electric differential pressure indicator M20x1.5
2.0 bar
E50T
Electric differential pressure indicator M20x1.5
5.0 bar
Operating pressure: max. 420 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 250 V AC, 1 A
Integrated thermostat: Indicator starts working at 30°C oil temperature
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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Differential
Page 186
Visual / Electrical Differential Pressure Indicator
Differential Pressure Indicators
Operating pressure: max. 420 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 250 V AC, 1 A
Type Description Connection Indicator
2PB
Visual / Electric differential pressure indicator
1/2” BSP 2.0 bar
5PB
Visual / Electric differential pressure indicator
1/2” BSP 5.0 bar
8PB
Visual / Electric differential pressure indicator
1/2” BSP 8.0 bar
Visual / Electrical Differential Pressure Indicator
Type Description Connection Indicator
E13
Visual / Electric differential pressure indicator M20x1.5
1.3 bar
E15
Visual / Electric differential pressure indicator M20x1.5
1.5 bar
E20
Visual / Electric differential pressure indicator M20x1.5
2.0 bar
E25
Visual / Electric differential pressure indicator M20x1.5
2.5 bar
E50
Visual / Electric differential pressure indicator M20x1.5
5.0 bar
E80
Visual / Electric differential pressure indicator M20x1.5
8.0bar
Operating pressure: max. 420 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 250 V AC, 1 A
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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Page 187
Differential
Visual / Electrical Differential Pressure Indicator
Differential Pressure Indicators
Operating pressure: max. 420 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 250 V AC, 1 A
Type Description Connection Indicator
Y25
Visual / Electric differential pressure indicator M20x1.5
2.0 bar
Y50
Visual / Electric differential pressure indicator M20x1.5
5.0 bar
Visual / Electrical Differential Pressure Indicator
Type Description Connection Indicator
1.3PL
Visual / Electric differential pressure indicator
1/2” BSP 1.3 bar
2PL
Visual / Electric differential pressure indicator
1/2” BSP 2.0 bar
2.5PL
Visual / Electric differential pressure indicator
1/2” BSP 2.5 bar
5PL
Visual / Electric differential pressure indicator
1/2” BSP 5.0 bar
8PL
Visual / Electric differential pressure indicator
1/2” BSP 8.0 bar
Operating pressure: max. 420 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 24 VDC, 10W
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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Differential
Page 188
Visual / Electrical Differential Pressure Indicator
Differential Pressure Indicators
Operating pressure: max. 420 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 24 VDC, 10W
Type Description Connection Indicator
L13
Visual / Electric differential pressure indicator M20x1.5
1.3 bar
L20
Visual / Electric differential pressure indicator M20x1.5
2.0 bar
L25
Visual / Electric differential pressure indicator M20x1.5
2.5 bar
L50
Visual / Electric differential pressure indicator M20x1.5
5.0 bar
L80
Visual / Electric differential pressure indicator M20x1.5
8.0 bar
CLOGGING INDICATORS
Technical specification subject to change without prior notice. Other specification on request. 2018/04/10
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Page 189
Differential
Electric Differential Pressure Indicator
Differential Pressure Indicators
Operating pressure: max. 315 bar
Seals: NBR
Temperature range: -10°C to 100°C
Ingress protection: IP65
Electric characteristics: 250 V AC, 1 A
Type Description Connection Indicator
E13S
Electric differential pressure indicator M20x1.5
1.3 bar
E20S
Electric differential pressure indicator M20x1.5
2.0 bar
E25S
Electric differential pressure indicator M20x1.5
2.5 bar
E50S
Electric differential pressure indicator M20x1.5
5.0 bar
E80S
Electric differential pressure indicator M20x1.5
8.0 bar
