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  <xs:element id="ggg_CommittedFacilityMember" abstract="true" name="CommittedFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ggg_AllowanceforCredits" abstract="false" name="AllowanceforCredits" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ggg_DocumentandEntityInformationAbstract" abstract="true" name="DocumentandEntityInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ggg_ScheduleOfAcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTableTextBlock" abstract="false" name="ScheduleOfAcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsByMajorClassTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ggg_ProcessMember" abstract="true" name="ProcessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ggg_ShelfNotesMember" abstract="true" name="ShelfNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ggg_ContractorMember" abstract="true" name="ContractorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ggg_InterestCoverageRatioNoAcquisitionsMember" abstract="true" name="InterestCoverageRatioNoAcquisitionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ggg_CovenantRatiosDomain" abstract="true" name="CovenantRatiosDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ggg_InterestCoverageRatioWithAcquisitionsMember" abstract="true" name="InterestCoverageRatioWithAcquisitionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ggg_PatentsProprietaryTechnologyAndProductDocumentationMember" abstract="true" name="PatentsProprietaryTechnologyAndProductDocumentationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ggg_CovenantRatioAxis" abstract="true" name="CovenantRatioAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="ggg_IndustrialMember" abstract="true" name="IndustrialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ggg_ProductWarrantyMarginReversed" abstract="false" name="ProductWarrantyMarginReversed" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ggg_IntangibleAssetsTranslationAdjustments" abstract="false" name="IntangibleAssetsTranslationAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ggg_CashFlowLeverageRatioWithAcquisitionsMember" abstract="true" name="CashFlowLeverageRatioWithAcquisitionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ggg_ImpairmentSegmentInformation" abstract="false" name="ImpairmentSegmentInformation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ggg_DefinedBenefitPlanAmortizationOfGainsLossesAndOther" abstract="false" name="DefinedBenefitPlanAmortizationOfGainsLossesAndOther" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ggg_CashFlowLeverageRatioNoAcquisitionMember" abstract="true" name="CashFlowLeverageRatioNoAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
