Fif]Je 24 Horizontal pump rcducer positions (courtesy of RedB ag/B entley Sy stem s, Inc.).Discharge PipingLine SizeGenerally, discharge piping is one or two sizes larger than the pumpdischarge nozzle size. For example, a 10" suction nozzle on a pumpwhere the suction size of the pipe is 12" or 14,, is probable, but thesame suction nozzle where the suction size of the pipe is 16,' or 18,, isquestionable, check with the Process Department.Dischorge Line Piping Fittings. Due to discharge lines being larger than the discharge nozzle,cccentric reducers are required in the line.. llcduccrs should be as closc as possible to thc nozzlc; with tol)sr.rclion-tol) (lischatgc l)utnl)s, carc nrrrsl bc takcn to cnsurc2.5 Pipin&---Sqecifrc Guidelines to Layout 49FLAT STRAINERTEE TYPE SIRAINERf rlgure 2-4 Continued.that the flats on eccentdc reducers are orientated so that thelines do not foul each other.. A pressure gauge should be located in the discharge line,upstream of the check and isolation valves.. When a level switch for pump protection is installed in thedischarge line, upstream of the block valves, ensure goodaccess for maintenance of switch.. To enable good access to valve handwheels and ease ofsupporting, the discharge line should be tumed flat after thereducer, and the line angled away from the nozzle to enablethe line to b supported from grade.. Avoid supporting large lines from pipe-rack structures ifpossible, this enables minimum-size beam sections to be usedand better access for pump removal and maintenance.