B56Hx180/1P-SC-Y 4x2 1/2"(54)

B56Hx180/1P-SC-Y 4x2 1/2"(54) designates a SWEP B56 brazed plate heat exchanger with 180 plates in the pack. The H plate is the obtuse chevron: it gives the most heat transfer per plate and the most pressure drop, so it suits duties where approach temperature matters more than pump head. Reading the string: /1P is single pass; -SC is 316/316L stainless steel plates joined with copper. The connection field reads 4x2 1/2"(54). The B56 plate pack measures 525 x 243 mm (20.67 x 9.57 in) on 430 x 148 mm port centres, and by SWEP's published weight formula a 180-plate unit comes to about 75.6 kg (166.7 lb) dry. Maximum flow for the frame is 76.2 m3/h (335.50 GPM); that is a ceiling for the ports, not a duty point. Depth is the one dimension that changes accross the plate counts of a series, so measure the space behind the unit before moving to a larger pack.