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  <xs:element id="pnr_OtherSecuritiesMember" abstract="true" name="OtherSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pnr_DefinedBenefitPlanPlanAssetsLevel3ReconciliationIncreaseDecreaseForActualReturnLossOnPlanAssets" abstract="false" name="DefinedBenefitPlanPlanAssetsLevel3ReconciliationIncreaseDecreaseForActualReturnLossOnPlanAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pnr_DefinedBenefitPlanPlanAssetsLevel3ReconciliationCompanyContributions" abstract="false" name="DefinedBenefitPlanPlanAssetsLevel3ReconciliationCompanyContributions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pnr_DefinedBenefitPlanLevel3ReconciliationIncreaseForBenefitsReceived" abstract="false" name="DefinedBenefitPlanLevel3ReconciliationIncreaseForBenefitsReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pnr_DefinedBenefitPlanPlanAssetsLevel3ReconciliationForeignCurrencyTranslation" abstract="false" name="DefinedBenefitPlanPlanAssetsLevel3ReconciliationForeignCurrencyTranslation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pnr_DefinedBenefitPlanExpectedFutureBenefitPaymentsAfterYearFive" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPaymentsAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pnr_StockholdersEquityNoteDisclosureTable" abstract="true" name="StockholdersEquityNoteDisclosureTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="pnr_December2025ShareRepurchaseProgramMember" abstract="true" name="December2025ShareRepurchaseProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pnr_StockholdersEquityNoteDisclosureLineItems" abstract="true" name="StockholdersEquityNoteDisclosureLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pnr_IncreaseDecreasetoQuarterlyDividendRate" abstract="false" name="IncreaseDecreasetoQuarterlyDividendRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pnr_RestrictedStockAndRestrictedStockUnitsRSUsMember" abstract="true" name="RestrictedStockAndRestrictedStockUnitsRSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpiryPeriodFromDateOfGrant" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardExpiryPeriodFromDateOfGrant" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="pnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageExercisePriceAbstract" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageExercisePriceAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="pnr_CustomerOneMember" abstract="true" name="CustomerOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pnr_Dealrelatedcostsandexpenses" abstract="false" name="Dealrelatedcostsandexpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pnr_LegalSettlementAndAccrualAdjustments" abstract="false" name="LegalSettlementAndAccrualAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
