Grab Sampling Systems - Swagelok
GrabSamplingSystemsApplication Guide Provides a simple, effective way to safely collectsamples Keeps samples in their representative state for analysis Can be adapted to meet system requirements
Swagelok Application SolutionsSwagelok offers a series of solutions for use in all types of plants and facilitieswhere fluids are being processed. Use Swagelok application solutions to createfully documented fluid sampling and control systems and bring consistency to youroperations. Easy to install and operate, these solutions offer the high quality andsupport you expect from Swagelok.ContentsWhat is Grab Sampling? . . . . . . . 3Grab Sample Cylinders (GSC)Why Use a Grab SamplingSystem? . . . . . . . . . . . . . . . . . 3Features . . . . . . . . . . . . . . . . . . 22Sampling Basics . . . . . . . . . . . . 3Specifying a Grab SamplingSystem . . . . . . . . . . . . . . . . . 4Grab Sampling SystemInstallation Tips . . . . . . . . . . . 5Outage Tubes . . . . . . . . . . . . . . . . 23Assembly Descriptions . . . . . . . 24Materials of Construction . . . . . . 25Pressure-Temperature Ratings . . 25Testing . . . . . . . . . . . . . . . . . . . . 25Configurations . . . . . . . . . . . . . 5Cleaning and Packaging . . . . . . 25Grab Sample Module (GSM)Dimensions . . . . . . . . . . . . . . . . 26Features . . . . . . . . . . . . . . . . . . . 7Ordering Information . . . . . . . . . 27Configuring a GSM . . . . . . . . . . . . . 8Liquid-Only Sampling System (GSL)System Descriptions . . . . . . . . . . 8Features . . . . . . . . . . . . . . . . . . 28Materials of Construction . . . . . . 17Configuring a GSL . . . . . . . . . . . . 28Pressure-Temperature Ratings . . 18System Descriptions . . . . . . . . . 29Testing . . . . . . . . . . . . . . . . . . . . 19Materials of Construction . . . . . . 36Cleaning and Packaging . . . . . . 19Pressure-Temperature Ratings . . 36Flow Data . . . . . . . . . . . . . . . . . 19Testing . . . . . . . . . . . . . . . . . . . . 37Dimensions . . . . . . . . . . . . . . . . 20Cleaning and Packaging . . . . . . 37Ordering Information . . . . . . . . . 21Flow Data . . . . . . . . . . . . . . . . . 37Dimensions . . . . . . . . . . . . . . . . 38Ordering Information . . . . . . . . . 40Accessories . . . . . . . . . . . . . . . 42Glossary Schematic SymbolDefinitions . . . . . . . . . . . . . . 43
3What is Grab Sampling?Grab sampling, also known as lab sampling or spot sampling, is the collecting of a sampleof liquid or gas in a pipeline, tank, or system with the intent of transporting the sample to alaboratory for analysis.Why Use a Grab SamplingSystem?Grab sampling can validate: process conditions end products meet quality specifications online analyzers are “fit for use” product quality during custody transferIt can also provide verification of environmentalemissions. In all of these uses, capturing arepresentative sample is essential.However, placing a captured sample into anopen bottle for transport back to the lab may notprovide a representative sample. Some chemicalswill evaporate or fractionate if not maintainedGrab Sampling System withPurgeunder pressure.As more industries bring additional analytical equipment online, it becomes more imperative tohave quality sample systems that can accurately capture the process for later analysis.Sampling BasicsSampling is the science of safely capturing a sample from a process or a pipeline whilemaintaining the chemical composition during storage or transport for later analysis. Dependingon the process phase, temperature, consistency, chemical makeup and other factors, there area variety of approaches that can be used to extract a sample.Determining the container type needed is the first decision that must be made in order to selectthe appropriate sampler.Container TypeCaptured PhaseLiquidVapor recommendedPressure-ContainingNon Pressure-Containing Cylinder Cylinder Bottle Bottle Cylinder Cylinder Bottle Bottle not recommendedThe product selection matrix on page 6 includes additional common system criteria.A Swagelok Application SolutionGrab Sampling Systems
4Another important aspect is the temperature of the system fluid. Many processes operate atelevated temperatures and can pose a hazard from direct scalding during operator interactionor from the temperature limits of seats and seals being exceeded. Swagelok recommendsconsideration of a sample cooler when the supply temperature exceeds 140 F (60 C.) Note thatthermal stability may affect sample integrity.Specifying a Grab Sampling SystemThe Swagelok grab sampling systems provide solutions to satisfy gas and liquid non-slurrysampling service in a consistent, reliable package. Two system types allow for capture into oneof two types of containers — pressure‑containing metal cylinders as found in the Grab SampleModule (GSM) or non pressure‑containing glass or polyethylene bottles as found in the LiquidOnly Sampling Module (GSL).Given the wide variety of configurations available, there will be several criteria to consider inorder to properly specify a grab sampling system: Pressure: Each GSM and GSL system has a maximum rated pressure, not to be exceeded.Note: The use of a rupture disc or relief valve is recommended with chemicals that mayrapidly expand and pressurize due to temperature changes. Temperature: Each GSM and GSL system has a maximum fluid operating temperature.Note: Some models may have reduced pressure ratings at elevated temperatures. Also,some models may have minimum fluid operating temperatures, below which properfunction cannot be assured. Phase: A cylinder sampler (GSM) can be suitable for either liquid or vapor systems. A bottlesampler (GSL) may not prevent the release of vapors and is better suited for most non-volatileliquid systems. Hazardous/flammable material: The sampling system must provide sufficient protection forthe operator and environment from the system fluid. Certain chemicals such as aqueouschlorine and pyrophoric compounds require more stringent leak or chemical protection thanmay be provided by a Swagelok GSM or GSL. Materials of Construction (including coatings, etc.): The materials used in the sampling systemmust be compatible with the system fluid. The standard material of construction for Swageloksampling systems is 316 stainless steel. Alternate materials such as alloy 400 are available forsome configurations. Surface treatments: Surface treatments can reduce the absorption and adsorption of thesample fluid into metallic surfaces, leading to a more representative sample. Electropolished(EP) tubing is available. In addition to or in place of electropolishing, many coatings canbe applied to the wetted components: SilcoNert , Silcolloy , and Dursan are frequentlyrequested coatings. Contact your authorized sales and service center for details. Purge: Some chemicals may leave residue or contaminate the lines if not flushed from thesystem. Selecting the purge option provides a means to introduce a purge fluid (air, solvent,etc.) to remove residual contamination from the sample lines.A Swagelok Application SolutionGrab Sampling Systems
5Grab Sampling System Installation TipsManual sample systems can be installed to draw from any point along a pressurized line wherethere is enough process or head pressure to drive the sample fluid through the process tubing.They may be used in an analyzer bypass or return line.If the sample panel requires a return, ensure that the transport line is being returned to a lowerpressure location, preferably through a separate tap. If the motive force from a pump is beingused, the return sample can be placed upstream of the pump, as the flow through the pump willbe sufficient to dilute any sample stream being returned to the process.Panels should always be installed so that sample vessels (cylinders or bottles) remain orientedvertically. Failure to do so may result in contaminated samples. CAUTION: When installing a Swagelok grab sampling system, position the ventaway from operating personnel. Always open vent/purge valves slowly. Operatingpersonnel must protect themselves from exposure to system fluid.ConfigurationsSwagelok offers two categories of grab sampling systems to fill a variety of intended uses.The Grab Sample Module (GSM) is a samplingpanel using cylinders for capturing either liquid or gasinto a sealed, pressure-containing vessel. Closed loopsampling provides a sample that is fresh and extractedand held under the same process conditions thatexisted at the time of sample, with the exception oftemperature. The sample vessel is docked in place andthe process fluid is continuously circulated through thesample vessel. This means when the sample vessel isready to be removed, the flow is isolated and the vesselis immediately ready to be removed – no waiting forlines to flush or bottles to fill. A sample receiver is required for the capture of thesample with a GSM — the Grab Sample Cylinder(GSC). The sample cylinders available are approvedfor transportation and are available with DOT or TPEDapprovals. Rupture discs are standard. Relief valvesGrab Sample Module with Purgeand expansion chambers are offered as options.A Swagelok Application SolutionGrab Sampling Systems
6The Grab Sample Liquid (GSL) is a liquid-onlysampling system for drawing fluid into a non-pressurecontaining bottle which can be drawn and transportedwithout the risk of spillage or evaporation. This canbe accomplished by using a bottle with a self-sealingseptum cap. Bottles are a lower cost collection optionthat can be replaced easily if conditions warrant. Fixed volume samplers are an option that canbe implemented for improved safety. This optioncompletely separates the process pressure from thesample bottle and the user, preventing over-filling andoverpressure conditions. See pages 34 and 35 foradditional information.Fixed Volume SampleSystemProduct Selection MatrixThis table provides a summary of common system criteria and the grab sampling systemrecommended for the listed dYesNoYesNoGSL735A Swagelok Application SolutionGrab Sampling SystemsReferencePageNumber
7Grab Sample Module (GSM)FeaturesThe GSM uses pressure-rated sample cylinders which prevent the sample from escaping, evenunder pressure, and are durable to prevent accidental breakage. The GSM is the most reliablemethod of capturing a sample.The GSM closed-looped sampling system pulls from a positive-pressure process and returnsback to the process at a lower pressure location (e.g. upstream of a pump), using the differentialpressure to drive the fluid through the sample system. This circuit draws a flow path thatconnects to the sampler then returns to the process or to flare. A GSM can be left in the bypassor sample position indefinitely when using this arrangement, keeping the transport lines fresh(with zero flushing time) and ready for sample capture. A rupture disc is an available option forevery GSM system. A relief valve can also be added to the sampling systems where there isadditional concern regarding overpressure of the sample cylinder from temperature changes oroverfilling.Each sampling system configuration utilizes Swagelok tube fittings, with the exception of thecylinder end connections, which avoids the potential leak points of NPT connections.A key feature of the GSM is the switching valve that directs flow. Using the Swagelok 40G seriesball valve for this switching valve, configurations are available with either 2 or 3 valves.This allows for simultaneous control of fluid routing, reducing the number of sequencing stepsrequired to draw a sample. The likelihood of errant sampling is reduced and a clear indication ofsequencing is provided to the operator. This valve assembly is a standard on all GSM panels aswell as fixed volume GSL panels.2-valveSwitching ValveSample ValveHandle Direction3-valveSwitching ValveValve OrientationValve X Valve YSample ValveHandle DirectionValve OrientationValve X Valve Y Valve ent231231Vent231231231A Swagelok Application SolutionGrab Sampling Systems
8Configuring a GSMThe most critical piece of information for determining which GSM configuration should be usedis the phase of the process fluid that the GSM is intended to collect. The flow path is differentfor liquids and gases and must be known when configuring the GSM. The flow path determineshow out-of-phase fluid is purged from the cylinder (see illustrations below).Liquids should fill from the bottom up. Thisdisplaces the vapor space, ensuring thecylinder is full. An outage tube can be addedto liquid systems to ensure there is expansionspace remaining in the cylinder.Note: The vapor space may compress underpressure.Gas should flow from the top down,pushing out any liquid / condensate fromthe sample cylinder as it fills.GSM System DescriptionsAdditional features are available for each system shown (except as noted) such as anintegrated purge line to clear residue and Sentry coolers. See page 42 for a complete list ofaccessories.The flow schematics that follow use the symbols defined in the glossary on page 43.Note: All standard sampling systems have an “off” position, where flow will not be passed throughthe panel. This state may not be reflected in the schematics. All cylinder samplers can be set to allow process fluid to pass through the panel with thesample cylinder removed by connecting the hose directly to the matching quick connect. Some samplers require a minimum amount of process pressure to operate, which can varydepending on the properties of the sampled fluid. The purge option provides the ability to introduce a gas or liquid (e.g. solvent) into the systemto flush the lines. The standard configuration halts sample transport flow during sampling. The continuous flowconfigurations allow the sample transport lines to continue flowing while sampling.A Swagelok Application SolutionGrab Sampling Systems
9GSM-L-1(-N) - S tandard LiquidSampler without PurgeUse:General use for liquid sampling.Recommended for: fluids that are non- toxic and are notsusceptible to settling in the sampler when the return is sent to flareBackFrontStandard Liquid (No Purge) 1Sample handle position:Process fluid flows through the samplecylinder and out the hose to the outlet port.PIFluid will continue to flow as long as thehandle remains in this position.COutletInlet31 X1 Y 23CVentStandard Liquid (No Purge)2Vent handle position:When sampling is complete, the cylinder isclosed and the handle can be turned to vent,isolating the supply/return lines and allowingPIfill lines to vent.COutletInletY 23COff handle position:All flow is halted.3X 2VentA Swagelok Application SolutionGrab Sampling Systems
10GSM-L-1(-P) - Standard LiquidSampler with PurgeUse:General use for liquid sampling. Purge option(using gas or a solvent) clears fluid beforeand/or after sample collection.Recommended for: fluids that are toxic or may settle in thesampler for when the return is sent to flareFrontStandard Liquid (With Purge) 1Sample handle position:Process fluid flows through the samplePIcylinder and out the hose to the outlet port.Fluid will continue to flow as long as thePurgehandle remains in this position.OutletInletC31 XC1 Y3CVentStandard Liquid (With Purge) 2Vent handle position:When sampling is complete, the cylinder isclosed and the handle can be turned to vent,PIisolating the supply/return lines and allowingfill lines to vent.PurgeOutletInletC31 X 2C1 Y 23CVentStandard Liquid (With Purge) 3Vent handle position Purge valve on:After venting the fill lines, a purge can beactivated to allow the fill lines to be purgedPI(flushed) in the opposite direction of filling.This requires a purge-compatible samplecylinder in order to purge the lines withoutpurging the cylinder itself.PurgeOutletInletOff handle position:VentAll flow is halted.A Swagelok Application SolutionGrab Sampling SystemsC31 X 21 Y 23CCBack
11GSM-G-1(-N) - S tandard GasSampler withoutPurgeUse: General use for gas sampling.Recommended for: non-toxic gases and systems when thereturn is sent to flareFrontBackStandard Vapor (No Purge) 1Sample handle position:VentProcess fluid flows through the sampleInletC31 Ycylinder and out the hose to the outlet port.OutletGas will continue to flow as long as the1 X3Chandle remains in this position.PIStandard Vapor (No Purge) 2VentVent handle position:CWhen sampling is complete, the cylinder isclosed and the handle can be turned to vent,InletOutletisolating the supply/return lines and allowingC3Y 2X 23fill lines to vent.PIOff handle position:All flow is halted.A Swagelok Application SolutionGrab Sampling Systems
12GSM-G-1(-P) - Standard Gas Samplerwith PurgeUse:General use for gas sampling. Purge optionclears sample gas before and/or after samplecollection.Recommended for: gases that are toxic or with condensiblehydrocarbons. systems when the return is sent to flare.FrontStandard Vapor (With Purge) Back1Sample handle position:Process fluid flows through the samplecylinder and out the hose to the outlet port.Fluid will continue to flow as long as thehandle remains in this position.VentInletOutletC31 YC1 X3CPurgePIStandard Vapor (With Purge) 2Vent handle position:When sampling is complete, the cylinder isVentclosed and the handle can be turned to vent,Inletisolating the supply/return lines and allowingfill lines to vent.COutletC3Y 2X 23CPurgePIStandard Vapor (With Purge) 3Vent handle position Purge valve on:After venting the fill lines, a purge can beactivated to allow the fill lines to be purged(flushed) in the opposite direction of filling.VentCInletThis requires a purge-compatible sampleOutletcylinder in order to purge the lines withoutPurgeC3Y 2X 23Cpurging the cylinder itself.PIOff handle position:All flow is halted.A Swagelok Application SolutionGrab Sampling Systems
13GSM-L-2(-N) - C ontinuous FlowLiquid Samplerwithout PurgeUse:General use for liquid sampling whencontinuous flow is required from inlet tooutlet.Recommended for: liquids that are non-toxic and are notsusceptible to settling in the sampler. samplers installed directly in the samplestream, on a fast loop, or where longsample transport lines are used.FrontBackFlow-Through Liquid (NoPurge) 1Sample handle position:Process fluid flows through the samplePIcylinder and out the hose to the outlet port.Liquid will continue to flow through thecylinder as long as the handle remains in thisC31 XOutletposition.InletC3 Z11 Y3CVentFlow-Through Liquid (NoPurge) 2Vent handle position:When sampling is complete, the cylinder isclosed and the handle can be turned to vent,PIisolating the supply/return lines and allowingfill lines to vent.COutletInletC3X 223 ZCY 23VentOff handle position:Flow to the cylinder is halted. Flow from inletto outlet is not halted.A Swagelok Application SolutionGrab Sampling Systems
14GSM-L-2(-P) - Continuous FlowLiquid Sampler withPurgeUse:General use for liquid sampling whencontinuous flow is required from inlet tooutlet. Purge option (using a gas or solvent)clears the sample fluid from the sampletransport lines before and/or after samplecollection.Recommended for: liquids that are toxic and may settle in thesampler samplers installed directly in the samplestream, on a fast loop, or where longFrontsample transport lines are usedBackFlow Through Liquid (With Purge) 1PISample handle position:Process fluid flows through the samplecylinder and out the hose to the outlet port.PurgeFluid will continue to flow through the cylinderOutletas long as the handle remains in this position.InletC31 XCC3 Z11 Y3CVentFlow Through Liquid (With Purge) 2Vent handle position:When sampling is complete, the cylinder isPIclosed and the handle can be turned to vent,isolating the supply/return lines and allowingPurgefill lines to vent.C31 X 2OutletInletVent handle position Purge valve on:CC23 Z11 Y 23CVentAfter venting the fill lines, a purge can beFlow Through Liquid (With Purge) 3activated to allow the fill lines to be purged(flushed) in the opposite direction of filling.PIThis requires a purge-compatible samplecylinder in order to purge the lines withoutpurging the cylinder itself.PurgeInletOff handle position:Flow to the cylinder is halted. Flow from inletGrab Sampling SystemsC23 Z11 Y 23CVentto outlet is not halted.A Swagelok Application SolutionC31 X 2OutletC
15GSM-G-2(-N) - C ontinuous FlowGas Sampler withoutPurgeUse:General use for gas sampling whencontinuous flow is required from inlet tooutlet.Recommended for: gases that are non-toxic samplers installed directly in the samplestream, on a fast loop, or where longsample transport lines are usedFrontBackFlow-Through Vapor (NoPurge) 1VentSample handle position:C31 YProcess fluid flows through the samplecylinder and out the hose to the outlet port.Gas will continue to flow through the cylinderInletC13 ZOutlet1 X3Cas long as the handle remains in this position.PIFlow-Through Vapor (NoPurge) 2VentVent handle position:CWhen sampling is complete, the cylinder isclosed and the handle can be turned to vent,Inletisolating the supply/return lines and allowingOutletC3Y 23 Z2CX 23fill lines to vent.PIOff handle position:Flow to the cylinder is halted. Flow from inletto outlet is not halted.A Swagelok Application SolutionGrab Sampling Systems
16GSM-G-2(-P) - Continuous Flow GasSampler with PurgeUse:General use for gas sampling whencontinuous flow is required from inlet tooutlet. Purge option clears sample fluid fromthe sample transport lines before and/or aftersample collection.Recommended for: gases that are toxic or with condensiblehydrocarbons samplers installed directly in the samplestream, on a fast loop, or where longsample transport lines are usedFrontSample handle position:Flow Through Gas (With Purge)1BackVentCProcess fluid flows through the samplecylinder and out the hose to the outlet port.Fluid will continue to flow through the cylinderas long as the handle remains in this position.31 YInlet1C 3 ZCOutlet1 XC3PurgePIFlow Through Gas (With Purge)2Vent handle position:VentCWhen sampling is complete, the cylinder canbe closed and the handle is turned to vent,1Inletisolating the supply/return lines and allowingOutletfill lines to vent.Purge3Y 21C 32C1X 2C3PIFlow Through Gas (With Purge)3Vent handle position Purge valve on:After venting the fill lines, a purge fluid can beVentCactivated to allow the fill lines to be purged1(flushed) in the opposite direction of filling.InletThis requires a purge-compatible sampleOutletcylinder in order to purge the lines withoutpurging the cylinder itself.1C 32C1X 2C3PurgePIOff handle position:Flow to the cylinder is halted. Flow from inletto outlet is not halted.A Swagelok Application Solution3Y 2Grab Sampling Systems
17GSM Materials of ConstructionComponentManufacturerModelMaterial Grade/ASTM SpecificationSwitching valveSwagelok40G seriesSee Swagelok One-Piece Instrumentation BallValves—40G Series and 40 Series catalog,MS‑02‑331Check valveSwagelokCH seriesSee Swagelok Check Valves, C, CA, CH, and CPASeries catalog, MS-01-176HoseSwagelokFL and FM seriesSee Swagelok Hose and Flexible Tubing catalog,MS-01-180Pressure indicatorSwagelokS model pressuregaugeSee Swagelok Pressure Gauges, Industrial andProcess—PGI Series catalog, MS-02-170Relief valve,proportionalSwagelokR3A seriesSee Swagelok Proportional Relief Valves catalog,MS-01-141System Hardware and Optional ComponentsStainless steeltube fittingsSwagelok316 SS/A276 or A182See Swagelok Gaugeable Tube Fittings and AdapterFittings catalog, MS-01-140Stainless steelquick connectsSwagelok316 SSSee Swagelok Quick Connects QC, QF, QM, andQTM Series catalog, MS-01-138Stainless steel panel,brackets, pipe standclamps, screwsSwagelok300 series stainless steelA Swagelok Application SolutionGrab Sampling Systems
18GSM Pressure-Temperature RatingsQuick ConnectSeriesGauge Range, barQC4➀1025QC6➀60Temperature, F ( C)100102560100Working Pressure, bar (psi)100(1450)10 (-12) to 100 (37)120 (48)150 (65)200 (93)16010.0(145)25.0(362)60.0(870)250 (121)86.8(1260)78.5(1140)300 4(1400)51.6(750)51.6(750)8001500➀ Ambient temperature range: 10oF to 140oF (-12oC to 60oC).Quick ConnectSeriesGauge Range, barQTM210Temperature, F ( C)256010.0(145)25.0(362)60.0(870)120 (48)Quick ConnectSeriesGauge Range, erature, F ( C)QC6➀15003000160400Working Pressure, psig (bar)1500(103)10 (-12) to 100 (37)120 (48)150 (65)200 (93)160Working Pressure, bar (psi)0 (-17) to 10 (-12)10 (-12) to 100 (37)100160(11.0)400(27.5)800(55.1)250 (121)1260(86.8)1140(78.5)300 (66.8)1400(96.4)750(51.6)750(51.6)➀ Ambient temperature range: 10oF to 140oF (-12oC to 60oC).Quick ConnectSeriesGauge Range, psiQTM2160Temperature, F ( C)4008003000160(11.0)120 (48)A Swagelok Application 6.8)2500(172)Grab Sampling Systemspressure ratings may beavailable upon request.Working Pressure, psig (bar)0 (-17) to 10 (-12)10 (-12) to 100 (37)Higher temperature and1500Contact your authorized salesand service center for moreinformation.
19GSM TestingGSM Cleaning and PackagingEvery Swagelok GSM is shell tested at theAll Swagelok GSM systems are cleanedselected gauge pressure of the assembly, upin accordance with Swagelok Standardto a maximum of 1000 psig (69 bar).Cleaning and Packaging (SC‑10), MS‑06‑62.Additional testing available upon request.GSM Flow DataThe GSM flow data is based on calculation using 70oF (20oC) as a reference point.Pressure Drop to Atmospherepsi (bar)Air Flow (Nitrogen)std ft3/min (std L/min)Water FlowU.S. gal/min (L/min)0.9 (3.4)50 (3.4)4.9 (138)250 (17.2)20.0 (566)2.0 (7.6)500 (34.5)39.1 (1107)2.8 (10.6)1000 (68.9)77.5 (2195)3.9 (14.8)1500 (103)116.2 (3290)4.8 (18.2)A Swagelok Application SolutionGrab Sampling Systems
20GSM DimensionsThe following drawings provide basic panel dimensions. All GSM systems are configured on thesame panel and will have the same basic dimensions. Exact system selected will determine finaldimensions.Dimensions, in inches (millimeters), are for reference only and are subject to change. 2.63 (66.8)3.00(76.2)2.03(51.6)5.00(127)(Relief 3.83option) (97.3)2.63(66.8)2 1.94(49.3)2 0.75(19.0)6.00(152)Top View7.50 (190)5.75 (146)4 0.95 (24.1)4.00 (102)2.25 (57.2)28.0(711)4 0.41 (10.4)27.0(686)16.2 (411)18.0 (457)Front ViewA Swagelok Application SolutionGrab Sampling Systems3.50(88.9)
21GSM Ordering InformationBuild a GSM solution ordering number by combining the designators in the sequence shownbelow. Sample cylinders are ordered separately, refer to page “GSC Ordering Information” onpage 27.12345678GSM - G - 1 - K 4 A - 0400 N - S41 F luid TypeG GasL Liquid4 Quick Connect2 QTM24 QC46 QC6➀ ➀ Notavailable with 0 to 3000 psi. 0 to 160 bar, or 0 to16 MPa gauge.2 Flow Pattern1 Standard2 Continuous Flow53 Dial Range(primary scale: psi; secondary scale: kPa)B 0 to 160 psiD 0 to 400 psiE 0 to 800 psiF 0 to 1500 psiH 0 to 3000 psi(primary scale: bar; secondary scale: psi)K 0 to 10 barM 0 to 25 barO 0 to 60 barP 0 to 100 barQ 0 to 160 bar(primary scale: MPa; secondary scale: none)S 0 to 1 MPaU 0 to 2.5 MPaV 0 to 6 MPaW 0 to 10 MPaX 0 to 16 MPaRelief ValveA ProportionalX None6 Cylinder Bracket Size (GSC specific)0150 150 cm30300 300 cm30400 400 cm30500 500 cm31000 1000 cm37 PurgeN No PurgeP Purge8 End ConnectionS4 1/4 in. Swagelok tube fitting6M 6 mm Swagelok tube fittingA Swagelok Application SolutionGrab Sampling Systems
22Grab Sample Cylinders (GSC)FeaturesA sample cylinder is required for every GSM system and should be ordered separately whenpurchasing a new GSM. Various configurations of sample cylinder assemblies, defined as GrabSample Cylinders (GSC), are available. The options available for GSC assemblies include: Five standard cylinder sizes (150, 300, 400, 500, & 1000 cm3) Multiple cylinder and valve material options With or without purge bypass tube Choice of quick connects Outage tubes, rupture discs, and handles Cylinder treatment/certification Stem and body protectors PTFE coated inner wall, SilcoNert coating, or electropolished inner diameter Cylinders with DOT, TC or TPED certification(see Sample Cylinders, Accessories, and Outage Tubes, MS-01-177, and Swagelok ProductsCompliant with the Transportable Pressure Equipment Directive (TPED), MS-02-193, foradditional information.) Valves with TPED certificationNote: Only certain components are available with the certification options listed. The certificationdoes not apply to the entire assembly.Choice of quick connect fittingsOptional bypass tubefor purgingOptional handleGSC-1B1000P-21X20XGSC-4B0400N-61AXXHA Swagelok Application SolutionGSC-3B0500P-41XXXGrab Sampling Systems
23Outage TubesOutage tubes provide a vapor space ofthe desired volume in cylinders containingliquefied gases, so that the liquid in thecylinder can expand if the temperatureincreases. Without enough vapor space, asmall temperature increase can cause theliquid to expand and increase t
Grab sampling, also known as lab sampling or spot sampling, is the collecting of a sample of liquid or gas in a pipeline, tank, or system with the intent of transporting the sample to a laboratory for analysis. Why Use a Grab Sampling System? Grab sampling can validate: proc
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Any non-Swagelok component will be replaced with Swagelok components Any visual deformities that Swagelok identifies will be replaced with new valves, fittings or cylinders Any non-cleaned cylinders will be rejected All Propylene cylinders will require a decontamination sheet as
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