Setting Line, Valve, and Instrument Locations

Many ftictors must be considered when locating each line, valve, and instrument in a pipe rack. Exhibit 11-10 

When locating lines in the rack, the plant layout designer should run the largest lines near the outside where possible to reduce the overall load on the supporting beams. Meter runs should be installed direaly next to die columns so diat access is available by portable ladder or mobile platform, as shown in Exhibit 11-11. Maer runs are located in the pipe rack only when absolutely necessary. 

Many relief headers must be located above the t  

EXHIBIT 11-14 Hose Station at a Pipe Rack Column 

Shut-off valves at utility headers are located inside the rack area in the horizontal position, directly above the header if room permits. Operating valves must be accessible from platforms or by chain operators. The location of the valve must also permit the chain to fall free of obstructions that would hamper operation. An additional 20% of space must be allowed for future pipe rack growth. An alternative approach to such expansion is shown in Exhibit 11-13. 

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