SEC Form 425 filed by Chart Industries Inc.

J u n e 2 6 , 2 0 2 5 Chart Industries and Flowserve Corporation Global Service Center Network Chart Industries + Flowserve 1

Chart and Flowserve Global Service Center Network Europe North America Asia Pacific Middle East & Africa South America Chart Aftermarket Capabilities Flowserve Aftermarket Capabilities 50+ 450K 2,000+ 150+ 5M+ 2,000+ Service Locations Globally Installed Base Units Assets Covered by Service Service Centers Globally Installed Base Units Assets Instrumented Agreements with RedRaven Chart Industries + Flowserve 2 Source: Company data as of 6/26/2025

Important Disclosures Important Information about the Transaction and Where to Find It This communication may be deemed to be solicitation material in respect of the proposed merger transaction between Chart Industries, Inc. (“Chart”) and Flowserve Corporation (“Flowserve”). In connection therewith, the parties intend to file relevant materials with the SEC, including a registration statement on Form S-4 to be filed by Flowserve in connection with the proposed issuance of shares of Flowserve’s common stock and preferred stock pursuant to the proposed merger transaction, which will include a document that serves as a prospectus of Flowserve with respect to such shares and a joint proxy statement of Chart and Flowserve (the “joint proxy statement/prospectus”) and, after the registration statement is declared effective, will be mailed to Chart and Flowserve stockholders seeking their approval of their respective transaction-related proposals. However, such documents are not currently available. BEFORE MAKING ANY VOTING OR ANY INVESTMENT DECISION, INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE JOINT PROXY STATEMENT/PROSPECTUS REGARDING THE PROPOSED TRANSACTION AND ANY OTHER RELEVANT DOCUMENTS FILED OR TO BE FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION AND THE PARTIES TO THE PROPOSED TRANSACTION. Investors and security holders may obtain free copies of the registration statement and the joint proxy statement/prospectus, any amendments or supplements thereto and other documents containing important information about each of Chart and Flowserve, once such documents are filed with the SEC, through the website maintained by the SEC at www.sec.gov. Copies of documents filed with the SEC by Chart will be available free of charge on Chart’s website at ir.chartindustries.com. Copies of documents filed with the SEC by Flowserve will be available free of charge on Flowserve’s website at ir.flowserve.com. Participants in the Solicitation Chart, Flowserve and their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from Chart’s stockholders and Flowserve’s shareholders in respect of the proposed transaction. Information regarding Chart’s directors and executive officers, including a description of their direct interests, by security holdings or otherwise, is contained in Chart’s Form 10-K for the year ended December 31, 2024, filed on February 28, 2025, and its proxy statement filed on April 8, 2025, which are filed with the SEC. Information regarding Flowserve’s directors and executive officers, including a description of their direct interests, by security holdings or otherwise, is contained in Flowserve’s Form 10-K for the year ended December 31, 2024, filed with the SEC on February 26, 2025, Proxy Statement on Schedule 14A for its 2025 Annual Meeting of Shareholders, filed with the SEC on April 2, 2025. To the extent holdings of Chart’s or Flowserve’s securities by their respective directors or executives officers have changed since the amounts set forth in their respective 2025 proxy statements, such changes have been or will be reflected on Initial Statements of Beneficial Ownership of Securities on Form 3, Statements of Changes in Beneficial Ownership on Form 4 or Annual Statements of Changes in Beneficial Ownership of Securities on Form 5 subsequently filed with the SEC. Additional information regarding the interests of such participants in the solicitation of proxies in respect of the proposed merger transaction will be included in the registration statement on Form S-4 and the joint proxy statement/prospectus and other relevant materials to be filed with the SEC when they become available. These documents (when available) can be obtained free of charge from the sources indicated above. No Offer or Solicitation This communication shall not constitute an offer to sell or the solicitation of an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended. Forward Looking Statements Certain statements made in this communication are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, statements about the benefits of the proposed merger transaction between Chart and Flowserve including future financial and operating results, statements related to the expected timing of the completion of the transaction, the combined company’s plans, objectives, expectations and intentions, and other statements that are not historical facts. Forward-looking statements may be identified by terminology such as “may,” “will,” “should,” “could,” “expects,” “anticipates,” “believes,” “projects,” “forecasts,” “outlook,” “guidance,” “continue,” “target,” “estimates,” “potential,” “intends,” “plans,” or the negative of such terms or comparable terminology. Forward-looking statements by their nature address matters that are, to different degrees, uncertain, such as statements about the consummation of the potential merger transaction, including the expected time period to consummate the potential merger transaction, and the anticipated benefits (including synergies) of the potential merger transaction. All such forward-looking statements are based upon current plans, estimates, expectations and ambitions that are subject to risks, uncertainties and assumptions, many of which are beyond the control of Chart and Flowserve, that could cause actual results to differ materially from those expressed in such forward-looking statements. Key factors that could cause actual results to differ materially include, but are not limited to: the risk that regulatory approvals are not obtained or are obtained subject to conditions, limitations or restrictions that are not anticipated by Chart and Flowserve; the failure to receive, on a timely basis or otherwise, the required transaction-related approvals of Chart’s stockholders and Flowserve’s shareholders; potential delays in consummating the proposed merger transaction, including as a result of failure to receive any regulatory approvals (or any conditions, limitations or restrictions placed on such approvals); the ability to integrate the operations of Chart and Flowserve in a successful manner and in the expected time period; the possibility that any of the anticipated benefits and projected synergies of the proposed merger transaction will not be realized or will not be realized within the expected time period; the possibility that competing offers or acquisition proposals may be made; the occurrence of any event, change or other circumstance that could give rise to the termination of the merger agreement, including in circumstances which would require Chart or Flowserve to pay a termination fee; risks that the anticipated tax treatment of the proposed merger transaction is not obtained; unforeseen or unknown liabilities; customer, stockholder, regulatory and other stakeholder approvals and support; unexpected future capital expenditures; the combined company’s ability to pay a quarterly dividend as expected; potential litigation relating to the proposed merger transaction that could be instituted against Chart, Flowserve or their respective directors; the possibility that the transaction may be more expensive to complete than anticipated, including as a result of unexpected factors or events; the effect of the announcement, pendency or completion of the proposed merger transaction on the parties’ business relationships and business generally; risks that the proposed merger transaction disrupts current plans and operations of Chart or Flowserve and potential difficulties in employee retention as a result of the proposed merger transaction, as well as the risk of disruption of management and ongoing business operations during the pendency of, or following, the proposed merger transaction; uncertainties as to whether the proposed merger transaction will be consummated on the anticipated timing or at all or, if consummated, will achieve its anticipated economic benefits, including as a result of risks associated with third party contracts containing material consent, anti-assignment, transfer or other provisions that may be related to the proposed merger transaction which are not waived or otherwise satisfactorily resolved; changes in commodity prices; negative effects of this announcement, and the pendency or completion of the proposed merger transaction on the market price of Chart’s or Flowserve’s common stock and/or operating results; rating agency actions and the ability to access short- and long-term debt markets on a timely and affordable basis; various events that could disrupt operations, including severe weather, cybersecurity attacks, as well as security threats and governmental response to them, and technological changes; labor disputes; changes in labor costs and labor difficulties; the effects of industry, market, economic, political or regulatory conditions outside of Chart’s or Flowserve’s control; legislative, regulatory and economic developments targeting public companies in the industrial sector; global supply chain disruptions and the current inflationary environment; the substantial dependence of Chart’s and Flowserve’s sales on the success of the energy, chemical, power generation and general industries; economic, political and other risks associated with the international operations of Chart and Flowserve; potential adverse effects resulting from the implementation of tariffs and related retaliatory actions and changes to or uncertainties related to tariffs and trade agreements; and the risks described in Item 1A “Risk Factors” of Chart’s and Flowserve’s most recent Annual Reports on Form 10-K and in subsequent filings with the SEC. Other unpredictable or factors not discussed in this communication could also have material adverse effects on forward-looking statements. All forward-looking statements included in this communication are based on information available to Chart and Flowserve on the date hereof and Chart and Flowserve undertake no obligation to update or revise any forward-looking statement. Chart Industries + Flowserve 3