B427Lx280/1P-SC-S / 4xDN100C cs

B427Lx280/1P-SC-S / 4xDN100C cs designates a SWEP B427 brazed plate heat exchanger with 280 plates in the pack. The L plate is the acute chevron, which gives up some heat transfer per plate for a lower pressure drop - the usual answer when the available head is small. 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 / 4xDN100C cs, in port order. The B427 plate pack measures 694 x 304 mm (27.32 x 11.97 in) on 567 x 179 mm port centres, and by SWEP's published weight formula a 280-plate unit comes to about 195.7 kg (431.5 lb) dry. Maximum flow for the frame is 155.5 m3/h (684.65 GPM); that is a ceiling for the ports, not a duty point. Thermal performance depends on the duty as much as on the part number, so include the fluids if the unit is going into a new application.