Exhibit 23 INDEPENDENT AUDITORS' REPORT Graham Corporation We consent to the incorporation by reference in Registration Statement No.'s 2-83432, 2-82275, 33-82432, 333-00401 and Post-Effective Amendment No. 1 to Registration Statement No. 33-82432 of Graham Corporation and subsidiaries on Forms S-3 and S-8 of our reports dated May 22, 1998 (which express an unqualified opinion and includes an explanatory paragraph relating to a change in accounting for revenue recognition from the completed contract to the percentage-of-completion method for certain long-term contracts), appearing in this Annual Report on Form 10-K of Graham Corporation and subsidiaries for the year ended March 31, 1998. /s/ Deloitte & Touche LLP - ------------------------- Deloitte & Touche LLP Rochester, New York June 23, 1998