EXHIBIT 32.2

                    CERTIFICATION OF CHIEF FINANCIAL OFFICER

     Pursuant to 18 U.S.C. Section 1350, as created by Section 906 of the
Sarbanes-Oxley Act of 2002, the undersigned officer of IDEX Corporation (the
"Company") hereby certifies, to such officer's knowledge, that:

          (i) the accompanying Quarterly Report on Form 10-Q of the Company for
          the quarterly period ended September 30, 2005 (the "Report") fully
          complies with the requirements of Section 13(a) or Section 15(d), as
          applicable, of the Securities Exchange Act of 1934, as amended; and

          (ii) the information contained in the Report fairly presents, in all
          material respects, the financial condition and results of operations
          of the Company.


November 9, 2005                      /s/ Dominic A. Romeo
                                      ------------------------------------------
                                      Dominic A. Romeo
                                      Vice President and Chief Financial Officer


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