EXHIBIT 23.1
CONSENT OF
INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in Registration
Statement Nos.
33-82396,
33-82398,
333-23697,
333-24475,
333-71044,
333-113426,
and Post-Effective Amendment No. 1 to
333-113426
on
Form S-8
of our reports dated June 2, 2009, relating to the
consolidated financial statements (which report expresses an
unqualified opinion and includes an explanatory paragraph
concerning the adoption of the measurement date provisions of
FASB Statement No. 158, Employers’ Accounting for
Defined Benefit Pension and Other Postretirement Plans, as
of April 1, 2008) and financial statement schedule of
Graham Corporation and subsidiary, and the effectiveness of
Graham Corporation’s internal control over financial
reporting, appearing in the Annual Report on
Form 10-K
of Graham Corporation for the year ended March 31, 2009.
/s/ Deloitte & Touche LLP
Deloitte & Touche LLP
Rochester, New York
June 2, 2009