Used Alfa Laval Spiral Heat Exchanger, Type ALSHE-LTL-8L, Approximate 94 Square Feet, 316 Stainless Steel. Multiple ratings from -14.5/152 at -40 to 200 degrees F., -14.5/152 at 300 degrees F., -14.5/150 psi at 400 degrees F., -14.5/136 psi at 500 degrees F., -14.5/126 psi at 600 degrees F., -14.5/103 psi at 700 degrees F., -14.5/87 psi at 752 degrees F. National Board# 4, serial# 31000-02-487, built 2009.