CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statement on Form S-3 (No. 33-57100) and in the Registration Statements on Form S-8 (No. 33-40397 and No. 33-44776) of Flow International Corporation of our report dated June 3, 1999 relating to the financial statements and financial statement schedules, which appears in this Form 10-K. /s/ PricewaterhouseCoopers LLP PRICEWATERHOUSECOOPERS LLP Seattle, Washington July 23, 1999