Tranter PHE, Inc. has been in the plate-type heat exchanger business for over 60 years. We manufacture plate and frame heat exchangers under the brand name of SUPERCHANGER; prime surface heat exchangers - brand name PLATECOIL; expanded plate heat exchangers - brand name ECONOCOIL; and all-welded units - brand name MAXCHANGER. Our sister company in Sweden, SWEP, manufactures compact braised heat exchangers. We are ISO 9001 in our plants in the U.S. and Sweden and sell through manufacturers representatives worldwide