Safety Automation Equipment List


Emerson Automation Solutions 4660
Emerson Automation Solutions


High-Low Pressure Pilot

Fisher® 4660 pneumatic high-low pressure pilot activates safety shutdown systems for flowlines, production vessels, and compressors. This pilot is available with either single or dual set point capability. Repeatability meets the U.S. Minerals Management Service test tolerances referenced in Outer Continental Shelf (OCS) Order No. 5 and defined in the American Petroleum Institute (API) RP14C standard.

IEC 61508     SIL 3

Assessed By:

   IEC 61508 Certificate   Assessment Report      Info

Last Updated: Mon, January 23, 2023