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    <link:label id="lab_us-gaap_RangeAxis_1779AA029D44740BEBBD53D1BC953285_label_en-US" xlink:label="lab_us-gaap_RangeAxis_1779AA029D44740BEBBD53D1BC953285" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Axis]</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_E425A4894EC167968EB653D1BC978FA4_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_E425A4894EC167968EB653D1BC978FA4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of credit commitment fee (as a percentage)</link:label>
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    <link:label id="lab_gtls_LineofCreditParticipationFeePercentage_C9134C3812F2A5CDAF5753D1BC981056_terseLabel_en-US" xlink:label="lab_gtls_LineofCreditParticipationFeePercentage_C9134C3812F2A5CDAF5753D1BC981056" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of credit participation fee (as a percentage)</link:label>
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    <link:label id="lab_gtls_LineofCreditParticipationFeePercentage_C9134C3812F2A5CDAF5753D1BC981056_documentation_en-US" xlink:label="lab_gtls_LineofCreditParticipationFeePercentage_C9134C3812F2A5CDAF5753D1BC981056" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Line of Credit, Participation Fee Percentage</link:label>
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    <link:label id="lab_gtls_FrontingFeePercentageChargedForIssuanceOfLettersOfCredit_057C2EABF1234975CF7A53D1BC983339_terseLabel_en-US" xlink:label="lab_gtls_FrontingFeePercentageChargedForIssuanceOfLettersOfCredit_057C2EABF1234975CF7A53D1BC983339" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of credit fronting fee (as a percentage)</link:label>
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    <link:label id="lab_us-gaap_RatioOfIndebtednessToNetCapital1_6B46ED2932D602C03F8B53D1BC980DF5_terseLabel_en-US" xlink:label="lab_us-gaap_RatioOfIndebtednessToNetCapital1_6B46ED2932D602C03F8B53D1BC980DF5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leverage ratio</link:label>
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    <link:label id="lab_gtls_InteresttoEBITDA_959FEC6D4554C7A1B0C853D1BC98AB3A_terseLabel_en-US" xlink:label="lab_gtls_InteresttoEBITDA_959FEC6D4554C7A1B0C853D1BC98AB3A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest to EBITDA</link:label>
    <link:label id="lab_gtls_InteresttoEBITDA_959FEC6D4554C7A1B0C853D1BC98AB3A_label_en-US" xlink:label="lab_gtls_InteresttoEBITDA_959FEC6D4554C7A1B0C853D1BC98AB3A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest to EBITDA</link:label>
    <link:label id="lab_gtls_InteresttoEBITDA_959FEC6D4554C7A1B0C853D1BC98AB3A_documentation_en-US" xlink:label="lab_gtls_InteresttoEBITDA_959FEC6D4554C7A1B0C853D1BC98AB3A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest to EBITDA</link:label>
    <link:loc xlink:href="gtls-20180930.xsd#gtls_InteresttoEBITDA" xlink:label="loc_gtls_InteresttoEBITDA_959FEC6D4554C7A1B0C853D1BC98AB3A" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_5ADB6810CB5AA280F75D53D1BC999167_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_5ADB6810CB5AA280F75D53D1BC999167" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long term debt</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_5ADB6810CB5AA280F75D53D1BC999167_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_5ADB6810CB5AA280F75D53D1BC999167" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Gross</link:label>
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    <link:label id="lab_us-gaap_LettersOfCreditOutstandingAmount_13E28B7D9C849FD1BD8953D1BC9947B9_terseLabel_en-US" xlink:label="lab_us-gaap_LettersOfCreditOutstandingAmount_13E28B7D9C849FD1BD8953D1BC9947B9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of credit outstanding</link:label>
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    <link:label id="lab_gtls_MaximumPercentageOfCapitalStockGuaranteedByCompanysMaterialNonUSSubsidiariesForObligationsUnderSeniorCreditFacility_2B7C00493E4C3631AA5953D1BC9A272D_terseLabel_en-US" xlink:label="lab_gtls_MaximumPercentageOfCapitalStockGuaranteedByCompanysMaterialNonUSSubsidiariesForObligationsUnderSeniorCreditFacility_2B7C00493E4C3631AA5953D1BC9A272D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum percentage of capital stock guaranteed by company</link:label>
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    <link:label id="lab_gtls_OverdraftFacilityMember_2FF8F528462E8750DF92683771D93681_documentation_en-US" xlink:label="lab_gtls_OverdraftFacilityMember_2FF8F528462E8750DF92683771D93681" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Overdraft Facility [Member]</link:label>
    <link:loc xlink:href="gtls-20180930.xsd#gtls_OverdraftFacilityMember" xlink:label="loc_gtls_OverdraftFacilityMember_2FF8F528462E8750DF92683771D93681" xlink:type="locator" />
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    <link:loc xlink:href="gtls-20180930.xsd#gtls_ChinaFacilitiesMember" xlink:label="loc_gtls_ChinaFacilitiesMember_641A703B24422C96C52E683771DC183C" xlink:type="locator" />
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    <link:label id="lab_gtls_CCDECFacilityMember_D52CA77445CD413C07D5683771DC2C10_documentation_en-US" xlink:label="lab_gtls_CCDECFacilityMember_D52CA77445CD413C07D5683771DC2C10" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CCDEC Facility [Member]</link:label>
    <link:loc xlink:href="gtls-20180930.xsd#gtls_CCDECFacilityMember" xlink:label="loc_gtls_CCDECFacilityMember_D52CA77445CD413C07D5683771DC2C10" xlink:type="locator" />
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    <link:label id="lab_gtls_CCESCTermLoanMaturingMay262024Member_18A85FE686BEE6B7267D683771DCC714_documentation_en-US" xlink:label="lab_gtls_CCESCTermLoanMaturingMay262024Member_18A85FE686BEE6B7267D683771DCC714" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CCESC Term Loan Maturing May 26, 2024 [Member]</link:label>
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    <link:label id="lab_gtls_FeroxSecuredFacilityA1FacilityMember_C6A2963310E07FBEFC7A683771DC66D9_terseLabel_en-US" xlink:label="lab_gtls_FeroxSecuredFacilityA1FacilityMember_C6A2963310E07FBEFC7A683771DC66D9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ferox Secured Facility A1 Facility</link:label>
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    <link:label id="lab_gtls_BulkindustrialgasapplicationsMember_6BEAA84C143923F608D320C2732942A5_label_en-US" xlink:label="lab_gtls_BulkindustrialgasapplicationsMember_6BEAA84C143923F608D320C2732942A5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bulk industrial gas applications [Member]</link:label>
    <link:label id="lab_gtls_BulkindustrialgasapplicationsMember_6BEAA84C143923F608D320C2732942A5_documentation_en-US" xlink:label="lab_gtls_BulkindustrialgasapplicationsMember_6BEAA84C143923F608D320C2732942A5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Bulk industrial gas applications [Member]</link:label>
    <link:loc xlink:href="gtls-20180930.xsd#gtls_BulkindustrialgasapplicationsMember" xlink:label="loc_gtls_BulkindustrialgasapplicationsMember_6BEAA84C143923F608D320C2732942A5" xlink:type="locator" />
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    <link:label id="lab_gtls_PackagedgasindustrialapplicationsMember_ABE7476D5B9993AFFBDB20C273292000_terseLabel_en-US" xlink:label="lab_gtls_PackagedgasindustrialapplicationsMember_ABE7476D5B9993AFFBDB20C273292000" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Packaged gas industrial applications</link:label>
    <link:label id="lab_gtls_PackagedgasindustrialapplicationsMember_ABE7476D5B9993AFFBDB20C273292000_label_en-US" xlink:label="lab_gtls_PackagedgasindustrialapplicationsMember_ABE7476D5B9993AFFBDB20C273292000" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Packaged gas industrial applications [Member]</link:label>
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    <link:loc xlink:href="gtls-20180930.xsd#gtls_PackagedgasindustrialapplicationsMember" xlink:label="loc_gtls_PackagedgasindustrialapplicationsMember_ABE7476D5B9993AFFBDB20C273292000" xlink:type="locator" />
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    <link:loc xlink:href="gtls-20180930.xsd#gtls_CryobiologicalMember" xlink:label="loc_gtls_CryobiologicalMember_928D4EFDFAD43E64BFD320C27329B205" xlink:type="locator" />
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    <link:label id="lab_us-gaap_StockOptionPlanExpense_13822A30CAF5C4A405A178CB2B6FDBEF_terseLabel_en-US" xlink:label="lab_us-gaap_StockOptionPlanExpense_13822A30CAF5C4A405A178CB2B6FDBEF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee share-based compensation expense</link:label>
    <link:label id="lab_us-gaap_StockOptionPlanExpense_13822A30CAF5C4A405A178CB2B6FDBEF_label_en-US" xlink:label="lab_us-gaap_StockOptionPlanExpense_13822A30CAF5C4A405A178CB2B6FDBEF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock or Unit Option Plan Expense</link:label>
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    <link:label id="lab_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_155F707EA02AC67F5A4278CB2B79F12E_terseLabel_en-US" xlink:label="lab_us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations_155F707EA02AC67F5A4278CB2B79F12E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash (Used In) Investing Activities</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInDiscontinuedOperations_05A2EB57FFC14090183078CB2B7A9388_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInDiscontinuedOperations_05A2EB57FFC14090183078CB2B7A9388" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Discontinued Operations</link:label>
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    <link:label id="lab_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_40E0FA68174A188C05A978CB2B7A7DE4_terseLabel_en-US" xlink:label="lab_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_40E0FA68174A188C05A978CB2B7A7DE4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effect of exchange rate changes on cash and cash equivalents</link:label>
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    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_E377A973D7B198A9F89978CB2B7AB551_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_E377A973D7B198A9F89978CB2B7AB551" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net increase (decrease) in cash, cash equivalents, restricted cash, and restricted cash equivalents</link:label>
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