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Excellence in Safety and Environment
A supervisor discussing a document with an employee in an industrial setting, showcasing expertise at a glance for glossary purposes
A supervisor discussing a document with an employee in an industrial setting, showcasing expertise at a glance for glossary purposes
PROTEGO® Knowledge

Glossary – our expertise at a glance

This glossary explains key technical terms related to PROTEGO® products and core technologies. As a world-leading manufacturer of Flame Arresters, Pressure and Vacuum Relief Valves Soupape de surpression et dépression A pressure and vacuum relief valve is a pressure equalization valve for impermissible pressure and vacuum in a closed system. , and Tank Equipment, we support safe, low-emission operation across many industries. Use this glossary to better understand our protection and system solutions.

1
li10% technology
A
liAccumulationAdjusted set overpressureAdjusted set pressureAdjusted set vacuumAir drying apparatusAmbient airAmbient temperatureAtmospheric conditionsAtmospheric dischargeAutomatic gas separator
B
liBack pressureBall jointBall valveBellowsBi-directional flame arresterBlow downBlow-off pipeBottom plateBuilt-up back pressure
C
liChange-over valveCheck valveCoatingCoefficient of dischargeComponentCompression springCondensate drain screwCondensate flame arresterConnection socketConventional pressure-relief valveCorner valveCounterweight
D
liDeflagrationDeflagration flame arresterDeflagration flame arrester for installation in a device - pressure sideDeflagration flame arrester for installation in a device - suction sideDeflagration proof floor drainDesign pressureDesign pressure (tank)Design pressure / design temperature (general design)Design vacuum (negative gauge pressure)DetonationDetonation flame arresterDeviceDiaphragmDiaphragm diskDiaphragm housingDry beads
E
liEmergency venting valvesEmpty lift safety deviceEnd-of-line deflagration flame arresterEnd-of-line detonation flame arresterEnd-of-line flame arresterEndurance burningEndurance burning flame arresterEquipmentEquipment categoryExplosionExplosion limitsExplosion pressure resistant Explosion prevention systemExplosion proof function control with transmitterExplosion protectionExplosion protection unitExplosion protection unit - pressure sideExplosion protection unit - suction sideExplosion shock proofExplosive atmosphere
F
liFast acting bottom drain valveFlame arresterFlame arrester housingFlame arrester unitFlame transmission-proofFLAMEFILTER®FLAMEFILTER® cageFLAMEFILTER® setFlammable gas or vaporFlammable liquidFlammable materialFlammable substancesFlashbackFlashpointFloating coverFloating exhaust systemFloating roofFloating roof drainage systemFloating skimmer systemFloating suction devicesFloating suction unitFoot valveFoot valve flame arresterFree vents
G
liGauge plateGauging and sampling deviceGauging and sampling nozzleGauging and sampling pipeGauging markGauging nozzleGauging nozzle bracketGauging nozzle lidGauging nozzle pedalGauging pipeGuide pipeGuide rodGuide sleeveGuide spindle
H
liHazardous explosive atmosphereHeating coilHigh velocity vent valve (dynamic flame arrester)High-velocity pressure relief valveHousingHousing attachmentHousing with valve seatHydraulic flame arrester
I
liIgnition sourceIgnition temperatureIn-line deflagration flame arresterIn-line detonation flame arresterIn-line detonation flame arrester for blowers - pressure sideIn-line detonation flame arrester with shut-off valveIn-line flame arresterIn-line volume deflagration flame arresterIn-tank valveInert gasInertingInflow pipeIntake funnelIntegrated temperature sensorInternal safety valve
L
liLeak rateLeft-woundLidLiftLift actuatorLift actuator pipeLift-actuated vent valveLifting aidLimiting oxygen concentration (LOC)LiningLiquid detonation flame arresterLiquid detonation flame arrester for filling and drain linesLiquid detonation flame arrester for filling linesLiquid seal (water seal)Liquid seal flame arresterLoad weightLower flammable limit (LFL)
M
liMaintenanceMalfunctionManifoldMaximum allowable explosion pressureMaximum allowable pressure (pressure equipment)Maximum allowable temperature (pressure equipment)Maximum allowable working pressure (MAWP)Maximum experimental safety gapMaximum operating temperatureMeasurable type (static flame arrester)Melting boltMelting elementMost inflammable explosive atmosphere
N
liNominal pipe sizeNominal pressureNominal sizeNon-measurable typ (static flame arrester)Normal pressure ventingNormal vacuum ventingNotified/approved body
O
liO-ringOpen-close testOperating pressureOperating temperatureOutlet pressureOverpressure
P
liPallet type valve (disc valve)Pilot valvePilot-operated pressure relief valvePilot-operated valvePipe away valvePipe fittingPipe swivel jointPre-volume deflagration flame arresterPre-volume flame arresterPressure (gauge pressure)Pressure and vacuum diaphragm valvePressure and vacuum relief valvePressure diaphragm valvePressure or vacuum relief valvePressure reducing valvePressure relief valve palletPressure vesselPressure-relief valvePressure/vacuum relief valvePressure/vacuum valve (PV valve)ProductProtective gratingProtective screenProtective systemPROTEGO® flame arrester unitProximity switch
Q
liQuenching
R
liRelative overpressureRelieving pressureReseating pressureRight-woundRing-shaped flame arresting unitRod sealRoof drain valveRupture disk
S
liSafety shut-off valveSafety valveSampling and air bleed valveSampling deviceSampling potSealSeal kitSealing cordSealing diskSealing ringSet pressureSet vacuumShock absorberShock-Wave-Guide-Tube (SWGT)Short time burningShort-time burning proofShut-off valveSpacerSparge pipeSpringStabilized burningStable detonationStatic electricityStatic flame arresterStoichiometric mixtureStorage tank/vesselSuction pipeSuperimposed back pressureSwivel joint
T
liTank pressureTemperature classTemperature sensorTest pressure
U
liUnstable detonationUpper flammable limit (UFL)
V
liVacuumVacuum diaphragm valveVacuum relief valveVacuum relief valve palletValve disc guideValve liftValve palletValve pallet diskValve pallet gasketValve pallet guideValve seatValve seat holderValve seat with guideVent capVent headerVent pipesVenting systemVenting system with flame arresting capabilityVessel
W
liWeather hoodWeight disk
Z
liZone 0Zone 1Zone 2Zones for gases/vapors