Level Switches for Bulk Materials
Bulk material level switches monitor and control powders, grains, pellets, and other bulk solids. Using rotary paddle and vibrating probe technologies, they detect material level across a range of material densities, even in dusty environments, and help prevent blockages and overflows in storage and processing facilities.
The switches are simple to install and maintain and are used in food processing, agriculture, and pharmaceuticals, where holding the correct level of bulk material is critical. Bulk material level switch products are listed below.
NAS
Bulk Media Level Switch
up to 3.5 bar | up to 85 °C | Polypropylene | Min Media Density of 0.3 kg/dm3 | Max Granule Size of 30 mm
Operation mode:
By tilting
Important specification:
Only in non ATEX area
Electric characteristics:
250 VAC, 50/60 Hz
Maximum pressure:
3.5 bar
Maximum temperature:
85 °C
Housing:
Copolymer polypropylene
Type of cable:
PVC 3X1 mm²
Float weight without cable:
462 g
Minimum medium density:
0.3 kg/dm³
Option:
Ballast weight, loaded resin, 250 g
NIR-9
Rotary Paddle Level Switch for Bulk Materials
For Bulk Materials | Wide Variety of Paddle Types | up to 392 °F | up to 7.25 PSIG | Adjustable Sensitivity| SPDT Switch
Fittings
1"...1½" NPT, 110 mm and 200 mm Flange
Max. Media Temperature
392 ºF (200 °C) (NIR-92)
Operating Pressure Range
-7.25...7.25 PSIG
Min. Bulk Media Density
2.37 Lb/ft3
Sensitivity
Adjustable, 3 Settings
Housing
Polyester Coated Aluminum
Power Supply
24 VDC, 110 VAC
Different Mounting Options
Sample Application Media: Cereal, Flour, Granulated Plastics, Cement, Sand, Cocoa, Sugar, and More.
NMF
Level Switch for Bulk Materials
Wide Variety of Dry Bulk Goods | Requires No Power to Operate | NBR, FPM, SS Membrane | up to 390 °F
Contact
1 Mechanical Switch
Retaining Ring
Galvanized Steel, SS, Aluminum
Max. Temperature
176 °F...390 °F (200 °C)
Handles a Wide Range of Dry Bulk Goods
Mechanically Actuated Switch
Requires No Power to Operate
NSV
Vibrating Level Switch
For Bulk Media | Insensitive to Moisture | up to 176 °F | 303 SS | Probe Length up to 118" | 1-1/2" NPT
Fittings
1½" NPT, G-1½ Male
Max. Temperature
176 °F (80 °C)
Minimum Material Density
3.75 Lb/ft3
Standard Probe Length
9" (230 mm)
Maximum Probe Length
118"
Supply Voltage
24, 110, 230 VAC 50/60 Hz or 18...36 VDC
Switch
SPDT Relay Contact, Max. 250 VAC, 1A
Suitable for Low Bulk Densities
Sample Application Media: Grains, Plastic Granules, Cement, Flour, Sugar, and Animal Feed
NVI
Vibrating Level Switch for Powders and Bulk Material
Top or Side Mount | Resistant to Coating Media | up to 360 PSIG | up to 320 °F | 1-1/2" NPT | 316-Ti SS
Wetted Materials
316-Ti Stainless Steel
Maximum Pressure
360 PSIG
Media Temperature Range
-22°...230°F (110 °C) (Standard), -22°...320°F (160 °C) (Optional)
Switch Contact
1 SPDT Relay, 250 VAC/8A Max.
For Level Monitoring of Powders & Granulated Solids
Suitable for Solids with a Minimum Density of 3.2 lb/ft³
Unique Single Probe Design is Resistive to Coating Media
Can Be Top or Side Mounted
PLS
Pendulum Level Switch For Bulk Solids
up to 78" Rod | up to 7 PSIG | up to 176 °F | SPDT Mechanical Switch | Aluminum and NBR Construction
Measuring Principle
Pendulum
Available Rod Lengths
up to 78.7" (2000 mm)
Switch
SPDT Mechanical Switch, Max. 250 VAC / 4 A
Max. Media Temperature
176 °F (80 °C)
Max. Operating Pressure
7 PSIG
Mounting Position
Vertical, Top of Bin
For Max. Level Monitoring of Bulk Solids in Storage Bins/Silos
Aluminum and NBR Construction
Flanged Process Connection
SPDT Switch - No Power Required
Sample Application Media: Cereal, Flour, Granulated Plastics, Cement, Sand, and Sugar