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Level Switches for Bulk Materials

KOBOLD's Bulk Material Level Switches are specifically designed to handle the challenges of monitoring and controlling bulk materials like powders, grains, and pellets. These switches are built to withstand harsh environments and ensure precise measurement for various material densities, even in the presence of dust. Utilizing technologies such as rotary paddles and vibrating probes, our bulk material level switches provide reliable performance and help prevent blockages and overflows in storage and processing facilities.

Our bulk material level switches are easy to install and maintain, offering long-term durability and consistent accuracy. They are ideal for applications in industries such as food processing, agriculture, and pharmaceuticals, where maintaining the correct level of bulk materials is critical. Explore our range of bulk material level switches listed below to find the perfect solution for your specific needs.

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

Starting at $332
Operation mode:
By tilting
Important specification:
Only in non ATEX area
Electric characteristics:
250 VAC, 50/60 Hz
Cut-out power:
20 (8) A
Maximum pressure:
3.5 bar
Maximum temperature:
85 °C
Protection index:
IP 68
Housing:
Copolymer polypropylene
Type of cable:
PVC 3X1 mm²
Float weight without cable:
462 g
Cable length:
5 and 10 m
Minimum medium density:
0.3 kg/dm³
Max. grain size:
30 mm
Option:
Ballast weight, loaded resin, 250 g
    Easy to install
    Suited for universal use
    pmax: 3.5 bar, tmax: +85°C
    Material: PP
    From density 0.3 kg/dm3
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

Starting at $357
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
Switch
SPDT Mechanical
Power Supply
24 VDC, 110 VAC
    Sturdy Industrial Design
    Easy Installation
    Different Mounting Options
    Adjustable Sensitivity
    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

Starting at $302
Contact
1 Mechanical Switch
Fitting
Circular Flange
Membrane
NBR, FPM, SS
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
    Economical
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

Starting at $1,151
Fittings
1½" NPT, G-1½ Male
Wetted Material
303 SS
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
    Compact Size
    Insensitive to Moisture
    No Calibration Needed
    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

Starting at $829
Fittings
1½" NPT, G-1½
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

Starting at $346
Measuring Principle
Pendulum
Available Rod Lengths
up to 78.7" (2000 mm)
Switch
SPDT Mechanical Switch, Max. 250 VAC / 15 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

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