Oil and Water Flow Switches


The TELEFLO® Model 816BC flow switches are simple and rugged flow switches designed for a wide range of oil and water flow applications. For more than 80 years, the TELEFLO flow indicator and switch has safeguarded equipment against the loss of flow, protecting thousands of installations against costly equipment damage due to inadequate lube oil and water flow.

Applications where the Model 816BC flow switch provides loss-of-fluid flow protection include lube oil systems, gearbox lube oil circuits, cooling water lines, seal water lines and machine tool coolants.

Industrial locations where the Model 816BC flow switch is most often used include steel and aluminum mills, pulp and paper, mining and power generation.

Loss of oil or water flow can produce costly failures for critical equipment. The family of Model 816BC flow switches provide simple and low-cost solutions to protect your equipment from loss of fluid flow.


Simple: Simplicity of design and operation are the leading benefits.  This easy-to-comprehend and install flow switch has provided a simplistic alternative to other flow switches. Its long-term popularity is mainly attributed to its simple design and operation. 

Heavy-Duty Construction:  The durable body creates a rugged and robust device that withstands all types of indoor and outdoor industrial environments. Even in the roughest operation, it remains reliable. 

Fluid Flow Protection: Protecting bearings, gears, tools and seals from loss of fluid flow by using a reliable, but simple, flow switch keeps your equipment operational and free from failures resulting from loss of fluid flow. 

Fluid Types

  • Lubrication Oils
  • Gear Oils
  • Water
  • Coolants

Model 816BC – 1/2″

Model 816BC – ¾”

Model 816BC – 1”

Model 816BC – 1 ½”

Model 816BC – 2”