Page 35 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

22 Applied Process Design for Chemical and Petrochemical Plants

f+ LrJ Filter-Air Intake Spool
Gate Valve A ++#-. Removable Pipe

.* Globe Valve
Angle Valve Fire Hydrant Air Cleaner -r - - --r Steam Traced
Line
-
& Plug Cock 8 (Compressor
P.
T.
Suction)
-++ Plug Valve Steam Jacketed
Line
Sample Connection Pressure Tap Steam L---+
Check Valve Separator fzf
Duct
--w
4
C.S.O. = Car Sealed Open
Check
Stop
--c C.S.C. = Car Sealed Closed & Swage
L.O. = Locked Open Bootleg
Blowdown Valve L.C. = Locked Closed Dresser
Coupling
Ball Valve
--.fF- Filter Seal Legs
U
4 \+ Butterfly Valve
Strainer Y
(B = Basket,
C= Cone, < ’ Gage Hatch
P = Plate)
$r “T” Type Strainer L
Closed System
Diaphragm Valve b Manhole Drain Conn. to

Needle Valve @ Flame Arrester
“Y”
on
(Tag
* Flow Sheet) ‘w Type Strainer
N.V. Steam
Three-way Plug F Diffuser Exhaust Head
Twin Basket
Valve Filler a Sample
+
Cooler
Four-Way Plug Mixer
Valve Trap-Steam 3 Screwed Cap
Three-way -0
Valve Weld Cap
Trap-Vacuum
5 Slide Valve 4 -11 Blind Flange Spectacle
Booster (Lift)
Blind
Angle Valve Spray Nozzle *-$-
’f Plug Hamer Blind
Bull
Stop Check Angle
T ’t’
Suction Tee
Pipe
Boiler Blowdown Ejector, Eductor,
Valve (Tandem) -E Hose Connection
Injector
& Exhauster
aa
tTii+ Damper ,Tb
Strainer

Figure 1-20C. Flow diagram symbols: valves, fittings and miscellaneous piping. (Compiled from several sources, and in particular, Fluor
Corp, Ltd.)