Honeywell #L4079B1033, Pressuretrol Controller, Manual Reset, 2 psi to 15 psi
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.