Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of Flowserve Corporation of our report dated February 23, 2022 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in Flowserve Corporation’s Annual Report on Form 10-K for the year ended December 31, 2021. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

Dallas, Texas

April 1, 2022