Description
UsermanualforHONR100gaspressureregulatorwithHONP095NGpilot 16
Figure Color Meaning
Inletpressure
Loadingpressure
Motorizationpressure
Outletpressure
Atmosphericpressure
Thepilot’ssetscrewisusedtotightenthepilotspring.Thespring,inturn,producesa
forcecomponentthatactsontheupperdiaphragmfromabove.
Theoutletpressureproducesaforcecomponentthatactsontheupperdiaphragm
frombelow.
Theforcecomponentsactingontheupperdiaphragmareusedbythediaphragmin
ordertocomparethesetpointandtheprocessvalue.Dependingonhowthedia‐
phragmmoves,alargerorsmallergapbetweenthevalveandthemotorizationpres‐
surestagewillbeopened.Themotorizationpressureisregulatedwiththisgap.
Theinletpressureisconveyedintothelowerchamberoftheupstreampressurestage.
Thispressureisconveyedintothechamberabovethelowerdiaphragmthroughthe
valve.Thepressurereducedbythevalveistheloadingpressure,whichproducesa
forcecomponentthatactsonthelowerdiaphragmfromabove.
Theoutletpressureisconveyedintothepilotfromtheotherside.Thispressureiscon‐
veyedintothechamberbelowthelowerdiaphragmunitthroughaholeinthehousing.
There,theoutletpressureproducesaforcecomponentthatactsonthediaphragm
frombelow.
Theforcecomponentsactingonthelowerdiaphragmareusedbythediaphragmin
ordertocomparethesetpointandtheprocessvalue.Dependingonhowthedia‐
phragmmoves,alargerorsmallergapbetweentheuppervalveandthemotorization
pressurestagewillbeopened.Themotorizationpressureisregulatedwiththisgap.
Dependingonthegaspressureandonthesetsetpoint,theresultingmotorization
pressurewillvary.
Pilotpressuresections
Howthepilotworks