1 Exhibit 23.3 KPMG Peat Marwick LLP [LOGO} Two Central Park Plaza Telephone 402 348 1450 Telefax 402 348 0152 Suite 1501 Omaha, NE 68102 233 South 13th Street, Suite 1600 Telephone 402 476 1216 Telefax 402 476 1944 Lincoln, NE 68508-2041 ACCOUNTANTS' CONSENT The Board of Directors Aqua-Chem, Inc.: We consent to the use of our report on the financial statements of National Dynamics Corporation included herein and to the references to our firm under the headings "Selected Financial Data of NDC" and "Independent Auditors" in the Prospectus. /s/KPMG Peat Marwick LLP Omaha, Nebraska August 5, 1998