EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Prospectus constituting part of 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 July 3, 1996, appearing on page 20 of this Form 10-K. /s/ Price Waterhouse LLP Seattle, Washington July 22, 1996