Inquiry (采购产品): Heat Exchanger Info We have a Tranter PHE heat exchanger model #UM-20-L-05-MS-100 that currently uses water at approximately 250 degrees F and 150 PSIG. We would like to use an alternate water source at 450 degrees F and 385 psig. Can we make this change without modifying the heat exchanger? **** Hidden Message ***** Gary Weidinger 97818 Company: Portland General Electric E-mail: gary.weidinger@pgn.com **** Hidden Message ***** gary.weidinger@pgn.com