Installation
• C heckthatthemaximuminletpressureisnot
higherthanthedesignpressureoftheregula-
tor .
• R egulatorshouldbeliftedonlywithbeltsaround
thebody .
• A rrange enough room for the serving of the
regulator .
Before installing the pressure regulator in the
piping,thefollowingmustbechecked:
• T he upstream and downstream flanges must
beparallelsoastoinstalltheregulatorwithout
unduestress .
• T heupstreampipingmustbecleanedfromall
impurities(sand,weldingslag,etc . )
• T he pressure regulator must not be visibly
damaged .
• T heinletandoutletchambersofthepressure
regulatormustbeperfectlyclean .
• M akesurethatthedirectionofgasflowcorre-
spondstothearrowonthepressureregulator
body .
Installation position
• T heinstallationpositionisfreelyselectable .
Sensing line
• T hesensinglineisn'tnecessaryofinternalpulse
(<4 . 0 bar)
• F orexternalpulse(>4,0bar),thesensingline
mustbeconnectedtoasectionreasonablyfree
fromturbulences,preferablyinastraightsec-
tionofthedownstreampiping(approx . 5D) .
• C onnection:G1/2"/EO-12(Regulator)
• C onnection:G1/4"/EO-6(SSV)
• Recommendedpipe:
Ermeto-pipeEO-12/-6,Steel,zincprotected
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Breathing line
• B reathingconnection133G
• B reathingconnection233/243/244:G 1"
• T o realize fast load changes of the regulator,
thefollowingcrosssectionofbreathinglineis
toobserve:
• U pto3mbreathingline,min . sizeDN 20;
• L onger than 3 m breathing line, size DN 25
orlarger .
Start up- Instructions
• T ostart-uptheregulatorafterinstallationprop-
erly,proceedasfollows:
• C heck that the upstream- and downstream
valvesareclosed;
• O pentheupstreamvalveslowly;
• R esettheshut-offvalve(seealsopage15);
• C heckthatthedownstreampressureisrising
slowly on the downstream side manometer,
the downstream pressure should stop at the
closingpressure;
• O penthedownstreamvalvesslowlytocontrol
theevenflow .
Regulator- and SSV-set point
• T he regulator is delivered according to the
specifications,specifiedinthepurchaseorder .
Iftheadjustedoutlet-/SSVshutoff-pressure
istobechanged,proceedasfollows:
• I ncreasing the outlet- / shut-off pressure:
Theadjustingscrewistoturnclockwise;
• D ecreasing the outlet- / shut-off pressure:
Theadjustingscrewistoturnanti-clockwise .
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