FORM10-Q (Mark One) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For thequarterly period endedSeptember 30, 2025 OR☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission File No.1-13179 FLOWSERVE CORPORATION (Exact name of registrant as specified in its charter) (972)443-6500 (Registrant’s telephone number, including area code)Former name, former address and former fiscal year, if changed since last report: N/A Indicate by check mark whether the registrant (1)has filed all reports required to be filed by Section13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12months (or for such shorter period that the registrant was required to file such reports), and(2)has been subject to such filing requirements for the past 90days.☑Yes¨No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submittedpursuant to Rule405 of RegulationS-T (§232.405 of this chapter) during the preceding 12months (or for such shorter period that theregistrant was required to submit such files).☑Yes¨No Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reportingcompany,”and"emerginggrowthcompany"inRule12b-2oftheExchangeAct. Large accelerated filer☑Accelerated filer☐Non-accelerated filer☐Smaller reporting company☐Emerging growth company☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule12b-2 of the Exchange Act). Yes☐No☑ As of October22, 2025 there were127,115,509shares of the issuer’s common stock outstanding. FLOWSERVE CORPORATIONFORM 10-QTABLE OF CONTENTS PART I – FINANCIAL INFORMATION Item1.Financial StatementsCondensed Consolidated Statements of Income and Condensed Consolidated Statements of ComprehensiveIncome– Three Months EndedSeptember 30, 2025and2024(unaudited)Condensed Consolidated Statements of Income and Condensed Consolidated Statements of ComprehensiveIncome–Nine Months EndedSeptember 30, 2025and2024(unaudited)Condensed Consolidated Balance Sheets –September 30, 2025and December31,2024(unaudited)Condensed Consolidated Statements of Shareholders' Equity – Three Months EndedSeptember 30, 2025and2024(unaudited)Condensed Consolidated Statements of Shareholders' Equity –Nine Months EndedSeptember 30, 2025and2024(unaudited)Condensed Consolidated Statements of Cash Flows –Nine Months EndedSeptember 30, 2025and2024(unaudited)Notes to Condensed Consolidated Financial Statements (unaudited)Item2.Management’s Discussion and Analysis of Financial Condition and Results of Operations2Item3.Quantitative and Qualitative Disclosures About Market Risk4Item4.Controls and Procedures4PART II – OTHER INFORMATIONItem1.Legal Proceedings4Item1A.Risk Factors4Item2.Unregistered Sales of Equity Securities and Use of Proceeds4Item 3. Defaults Upon Senior Securities4Item 4. Mine Safety Disclosures4Item 5. Other Information4Item6.Exhibits4SIGNATURES4 FLOWSERVE CORPORATION FLOWSERVE CORPORATION CONDENSED CONSOLIDATED BALANCE SHEETS(Unaudited) FLOWSERVE CORPORATION FLOWSERVE CORPORATION CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY FLOWSERVE CORPORATIONCONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS(Unaudited) FLOWSERVE CORPORATION (Unaudited) NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS 1.BASIS OF PRESENTATION AND ACCOUNTING POLICIES Basis of Presentation The accompanying condensed consolidated balance sheet as of September 30, 2025 and December 31, 2024, and the relatedcondensed consolidated statements of income, condensed consolidated statements of comprehensive income, condensed consolidatedstatements of shareholders' equity for the three and nine months ended September 30, 2025 and 2024 and condensed consolidatedstatements of cash flows for the nine months ended September 30, 2025 and 2024 of Flowserve Corporation are unaudited. Inmanagement’s opinion, all adjustments comprising normal recurring adjustments necessary for fair statement of such condensedconsolidated financial statements have been made. The accompanying condensed consolidated financial statements and notes in this Quarterly Report on Form 10-Q for the quarterlyperiod ended September 30, 2025 ("Quarterly Report") are presented as permitted by RegulationS-X and do not contain certaininformation included in our annual financial statements and notes thereto. Accordingly, the accompanying condensed consolidatedfinancial information should be read in