|Transfer Lines as Units in an ISA-88 Framework|
|Presented at the WBF North American Conference, Chicago, IL, May 16–19, 2004, by|
|Todd A. BrunSenior Project Engineertabrun@ra.rockwell.comRockwell Automation, 15458-B N. 28th Avenue,Phoenix, AZ 85053, USA|
Traditional process models typically view a transfer line between units either as a physical extension of the batching vessel or as a shared Equipment Module (EM). The valves in the transfer line are then convenient places to establish the boundary of the upstream or downstream unit.
A “transfer panel” (Fig. 11.1)—also known as a “hook-up station” or a “flowverter”—is a collection of piping ports that use U-bend pipes or flexible hoses to connect one port to another ...