Pressuretrol, Manual Reset, 10 to 150 PSI (for Oil Applications)


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Honeywell pressuretrol controller with a range of 10-150 psi, manual reset, and a 1/4″ NPT female connection to siphon loop. Pressuretrol limit controls are high pressure limit switches which break electrical circuits when pressure rises to a preset value. L4079W models have one SPST switch that breaks on rise and seals for oil applications.

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SKU: CON-UNSORTED-L4079W1000 Category: Tags:

High pressure limit switches.


  • Stainless steel diaphragm for use with steam, air, noncombustible gases and fluids non-corrosive to stainless steel.
  • L4079W is for Oil Applications.
  • Micro Switch snap-acting switches open automatically on pressure rise; must be manually reset.
  • Mount using 1/4 in. NPT female fitting on diaphragm assembly or surface mount through back of case.


Manufacturer ID


Operating Range

10 to 150 PSI

Switch Action

SPST break on pressure rise – Oil Applications

Max Pressure

225 PSI

Product Data

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