EXHIBIT 31.2

CERTIFICATION PURSUANT TO
RULE 13a-14(a), AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Allen M. Hsieh, certify that:

1.	I have reviewed this annual report on Form 10-K/A for the year ended April 30, 2009 of Flow International Corporation;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

/s/ Allen M. Hsieh

Allen M. Hsieh
Principal Financial Officer and Principal Accounting Officer
July 13, 2009