B16DWHx48/1P-SC-S 2x22U+2x28U

B16DWHx48/1P-SC-S 2x22U+2x28U designates a SWEP B16DW brazed plate heat exchanger with 48 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 closing S is the pressure class: 31 bar at 155 C. Connections are listed as 2x22U+2x28U, in port order. The B16DW plate pack measures 377 x 119.5 mm (14.84 x 4.70 in) on 329 x 72 mm port centres, and by SWEP's published weight formula a 48-plate unit comes to about 12.1 kg (26.7 lb) dry. Maximum flow for the frame is 11 m3/h (48.40 GPM); that is a ceiling for the ports, not a duty point. Where a nameplate is worn, the plate count and the connection sizes are usually enough to separate this build from its neighbours in the series.