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780 Hermetically Sealed Level Control

The Model 780 Hermetically Sealed Level Control is a side-mounted float type liquid level control. This unit is used as a high or low level control. Also, can be used to sound alarms or operate control equipment.


As the liquid in the vessel rises, lifting the float, a magnet (weld sealed inside the arm) is moved downward toward the hermetically sealed reed switch inside the housing body, causing magnetic actuation of the switch.

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780 Hermetically Sealed Level Control


  • Corrosion Proof: All Stainless Steel Wetted Parts
  • Adjustments: Nothing to Adjust or Get Out of Calibration
  • Simple Installation: Float Passes Through a 1″ Fitting
  • Hermetically Sealed Switch
  • Replacement Switch Capsule: Can Easily Be Changed in Field
  • Explosion Proof Enclosure


  • Body Material: 316 Stainless Steel
  • Operating Pressure Rating: 1500 psig
  • Float Material: Polypropylene
  • Temperature Limit: 200˚F
  • Level Differential: Approx. 1″
  • Housing: Class 1, Group A, B, C & D
  • Electrical Connection: 1 /2″ Female Pipe Thread
  • Minimum Specific Gravity: 0.60″

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