• NBK M Bypass Level, , Includes 1st 4" NBK-M3A20

KOBOLD Instruments NBK-M3A20 NBK M Bypass Level, , Includes 1st 4"

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Shipping Weight:
2.00 LBS

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The KOBOLD NBK-M bypass level indicator provides many of the unique features of our standard NBK, but at a fraction of the cost. It uses our revolutionary ring magnet float design, allowing the user full flexibility in adding roller indicators, switches, and other options anywhere on the periphery of the bypass tube. The use of lighter gauge materials makes the NBK-M an economical choice for low pressure level measurement. A magnetic roller indicator strip allows local level reading at the tank as they rotate from white to red as the level changes. This assembly can be rotated in the field to any position on the bypass tube for easier readings in tight locations. Rollers are made of POM for temperatures under 250 °F and are made of ceramic for temperatures above. SPDT switches are available for use in hi/low level alarms and automatic tank fill/empty operations. The switch level setpoint is adjusted in the field by sliding the switch assembly up or down on the bypass pipe. Magnetostricitve and variable resistance level transmitters are available for remote indicators or control systems. A universal indicating unit, ADI series, can be mounted on the bypass to display and evaluate the standard signal (4-20mA) generated by the transmitter.


  • 316 Stainless Steel Tube
  • Max. Pressure: 580 PSIG
  • Max. Temperature: 390 °F
  • Measuring Lengths to 9.8 ft
  • Optional Switches, Transmitters, and Digital Displays Available
  • Rugged, Economical Design

Product Specifications

Flange RatingANSI Class, 300lb
Fitting TypeANSI Flange
Fitting Size¾"
Bypass Pipe Material316-Ti Stainless Steel
Float MaterialTitanium
Maximum Measuring Length9.8 ft
Maximum Pressure580 PSIG
ProtectionIP 54

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