Used 618 Sq. Ft. APV Crepaco Titanium (SB 265 Grade 1) Plate Heat Exchanger. Rated for 150 psi@300 F or -20 F @150 psi. Model #SR6GLOT. Serial # 76720. National Board #2756. Built 1988. 105 plates. Weight of Plates-463 lbs. Weight of Frame- 2144 lbs. 4" 150# ANS lap Joint Flanged. Frame material is carbon steel - epoxy lined. EPDM gasket materials. Drawing on file.