National Magnetic Sensors, Inc - Multi Level Float Sensors, Single Level Float Sensors, AST Sensors, Bottle Switches, etc.

Single Level Switches

National offers a full line of standard single level float switches. If you don't see exactly what you need, a custom version can be configured to meet your specific requirements.

Single level switches are a simple solution for liquid level switching or indication. They are typically used for high and low level conditions. Conveniently mounts at the top or bottom of a tank or vessel. The floats can be reversed in field to change the condition of the switch from normally open to normally closed and vice versa.

An economical and versatile choice for the OEM or end user!

  • Staninless Steel, Brass and Buna, PVC, and Polypropylene construction
  • Available with SPST or SPDT reed switches
  • 10va & 50va mini reeds/15va & 100va full size reeds
  • 1/8" or 1/4" NPT mounting threads
  SLS-15SSP SLS-15BBP SLS-100VVP ILS-100BBP
SPECIFICATIONS* SLS-15SSP SLS-15BBP SLS-100VVP ILS-100BBP
STEM MATERIAL 316 S.S. BRASS PVC BRASS
FLOAT MATERIAL 316 S.S. BUNA-N PVC BUNA-N
OPERATING TEMP -40 degrees to 300 degrees F 150 degrees F 150 degrees F 150 degrees F
PRESSURE RATING 750 psi max 150 psi max 150 psi max 150 psi max
SWITCHES AVAILIABLE* SPST 15/100 VA SPST 15/100 VA SPST 15/100 VA SPST 15/100 VA
Mouse over Diagram to Enlarge

  TLS-10SSP TLS-10BBP TLS-10PPP TLS-10PPS
SPECIFICATIONS* TLS-10SSP TLS-10BBP TLS-10PPP TLS-10PPS
STEM MATERIAL 316 S.S. BRASS POLYPROPYLENE POLYPRO
FLOAT MATERIAL 316 S.S. BUNA-N POLYPROPYLENE POLYPRO
OPERATING TEMP 300 degrees F max 150 degrees F 230 degrees F 230 degrees F
PRESSURE RATING 150 psi max 150 psi max 150 psi max 150 psi max
SWITCHES AVAILIABLE* SPST, 10 VA SPST, 10 VA SPST, 10 VA SPST, 10 VA
Mouse over Diagram to Enlarge