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  <xs:element id="dxpe_AssetsAndLiabilitiesLesseeTableTextBlock" abstract="false" name="AssetsAndLiabilitiesLesseeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="dxpe_CashPaidForLeaseLiabilitiesAbstract" abstract="true" name="CashPaidForLeaseLiabilitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dxpe_ContingentConsiderationLiabilityMember" abstract="true" name="ContingentConsiderationLiabilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationInExcessOfFairValue" abstract="false" name="BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationInExcessOfFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dxpe_TotalEquipmentCompanyIncMember" abstract="true" name="TotalEquipmentCompanyIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_ServiceCentersMember" abstract="true" name="ServiceCentersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_DebtCovenantPeriodTwoMember" abstract="true" name="DebtCovenantPeriodTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_DebtInstrumentCovenantComplianceFixedChargeCoverageRatio" abstract="false" name="DebtInstrumentCovenantComplianceFixedChargeCoverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dxpe_PercentagesOfVestingInPeriodFive" abstract="false" name="PercentagesOfVestingInPeriodFive" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dxpe_EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActTransitionTaxOnAccumulatedForeignEarningsAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActTransitionTaxOnAccumulatedForeignEarningsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dxpe_DepreciationExceptCorporate" abstract="false" name="DepreciationExceptCorporate" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dxpe_InterestRateOnBorrowingsOutstandingTableTextBlock" abstract="false" name="InterestRateOnBorrowingsOutstandingTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="dxpe_IntangibleAssetsNetIncludingGoodwillForeignCurrencyTranslationGainLoss" abstract="false" name="IntangibleAssetsNetIncludingGoodwillForeignCurrencyTranslationGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dxpe_DebtCovenantPeriodThreeMember" abstract="true" name="DebtCovenantPeriodThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_APOPumpsCompressorsMember" abstract="true" name="APOPumpsCompressorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_PreferredStockVotesPerEachShare" abstract="false" name="PreferredStockVotesPerEachShare" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:decimalItemType"/>
  <xs:element id="dxpe_PremierWaterMember" abstract="true" name="PremierWaterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_DebtCovenantDomain" abstract="true" name="DebtCovenantDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_TurboMachineryRepairMember" abstract="true" name="TurboMachineryRepairMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_ABLRevolverMember" abstract="true" name="ABLRevolverMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_StockRepurchaseProgramNumberOfInstallments" abstract="false" name="StockRepurchaseProgramNumberOfInstallments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="dxpe_SupplyChainServicesMember" abstract="true" name="SupplyChainServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_AdjustmentForAbstract" abstract="true" name="AdjustmentForAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dxpe_LondonInterbankOfferedRateLIBOROrCanadianDollarOfferedRateCDORMember" abstract="true" name="LondonInterbankOfferedRateLIBOROrCanadianDollarOfferedRateCDORMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_CanadianPrimeRateOrCanadianBaseRateMember" abstract="true" name="CanadianPrimeRateOrCanadianBaseRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_SummaryOfOperatingLossCarryforwardsAndTaxCreditCarryforwardsTableTextBlock" abstract="false" name="SummaryOfOperatingLossCarryforwardsAndTaxCreditCarryforwardsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="dxpe_StockRepurchaseProgramExpirationPeriod" abstract="false" name="StockRepurchaseProgramExpirationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="dxpe_PumpingSystemsIncMember" abstract="true" name="PumpingSystemsIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_TotalGoodwillAndIntangibleAssetsRollForward" abstract="true" name="TotalGoodwillAndIntangibleAssetsRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dxpe_DrydonEquipmentIncAndBurglingameEngineersMember" abstract="true" name="DrydonEquipmentIncAndBurglingameEngineersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dxpe_CostAndEarningsOfUncompletedContracts" abstract="false" name="CostAndEarningsOfUncompletedContracts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dxpe_DebtInstrumentCovenantComplianceConsolidatedFixedChargeCoverageRatio" abstract="false" name="DebtInstrumentCovenantComplianceConsolidatedFixedChargeCoverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dxpe_DebtCovenantPeriodOneMember" abstract="true" name="DebtCovenantPeriodOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
