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  <xs:element id="dci_ContributoryEmployeeSavingPlanPercentageOfParticipantsFirstEligibleCompensation" abstract="false" name="ContributoryEmployeeSavingPlanPercentageOfParticipantsFirstEligibleCompensation" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dci_ContributoryEmployeeSavingPlanPercentageMatchOfParticipantsSecondContributions" abstract="false" name="ContributoryEmployeeSavingPlanPercentageMatchOfParticipantsSecondContributions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dci_ContributoryEmployeeSavingPlanPercentageOfParticipantsSecondEligibleCompensation" abstract="false" name="ContributoryEmployeeSavingPlanPercentageOfParticipantsSecondEligibleCompensation" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dci_DefinedContributionPlanAnnualRetirementContributionsPercent" abstract="false" name="DefinedContributionPlanAnnualRetirementContributionsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dci_DeferredCompensationArrangementWithIndividualMaximumFutureDeferredReceiptsAllowed" abstract="false" name="DeferredCompensationArrangementWithIndividualMaximumFutureDeferredReceiptsAllowed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dci_DefinedBenefitPlanInsuranceContractsMember" abstract="true" name="DefinedBenefitPlanInsuranceContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_DefinedBenefitPlanAlternativeInvestmentsFairValueOfPlanAssets" abstract="false" name="DefinedBenefitPlanAlternativeInvestmentsFairValueOfPlanAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dci_DefinedBenefitPlanAssetsInvestmentAtFairValue" abstract="false" name="DefinedBenefitPlanAssetsInvestmentAtFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dci_DefinedBenefitPlanAssetsAccruedIncome" abstract="false" name="DefinedBenefitPlanAssetsAccruedIncome" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dci_DefineBenefitPlanAssetsIncludingAssetsMeasuredUnderTheNetAssetValueApproach" abstract="false" name="DefineBenefitPlanAssetsIncludingAssetsMeasuredUnderTheNetAssetValueApproach" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dci_DefinedBenefitPlanPlanAssetsLevel3ReconciliationIncreaseDecreaseFromForeignCurrencyExchange" abstract="false" name="DefinedBenefitPlanPlanAssetsLevel3ReconciliationIncreaseDecreaseFromForeignCurrencyExchange" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dci_SalariedPensionPlanMember" abstract="true" name="SalariedPensionPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_HourlyPensionPlanMember" abstract="true" name="HourlyPensionPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_LongTermDebtFixedInterestRateMember" abstract="true" name="LongTermDebtFixedInterestRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_LongTermDebtVariableInterestRateMember" abstract="true" name="LongTermDebtVariableInterestRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_AdvancedFiltrationSystemsIncMember" abstract="false" name="AdvancedFiltrationSystemsIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_PurilogicsMember" abstract="true" name="PurilogicsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_ContingentCompensationMember" abstract="true" name="ContingentCompensationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_FuturePerformanceMember" abstract="true" name="FuturePerformanceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_CumulativePaymentForContingentConsiderationLiability" abstract="false" name="CumulativePaymentForContingentConsiderationLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dci_CustomerOneMember" abstract="true" name="CustomerOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_CorporateAndReconcilingItemsMember" abstract="true" name="CorporateAndReconcilingItemsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_OffRoadProductsMember" abstract="true" name="OffRoadProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_OnRoadProductsMember" abstract="true" name="OnRoadProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_AftermarketProductsMember" abstract="true" name="AftermarketProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_IndustrialFiltrationSolutionsProductsMember" abstract="true" name="IndustrialFiltrationSolutionsProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dci_AerospaceAndDefenseProductsMember" abstract="true" name="AerospaceAndDefenseProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
