Used approximately 891.30 sqft surface area stainless steel plate exchanger. Alfa Laval model MK15-BWFD. Rated 150/300 PSI @ 200 degrees F. MDWT -20 deg F @ 150/300 PSI. A. Dim 569 mm w 91 0.60 MM CASS. Order Number. 18000885. NB# 31826. Built 2012. SN 30-13-93236.