B439Hx200/1P-SC-S / 4xDN100C cs

This is the 200-plate B439: SWEP designation B439Hx200/1P-SC-S / 4xDN100C cs. Its H plates are the high-theta pattern - the choice when the leaving temperature is tight and the pump has head to spare. The /1P-SC fields read as single pass, with 316/316L stainless steel plates and a copper braze. The closing S is the pressure class: 31 bar at 155 C. The connection field reads / 4xDN100C cs. The B439 plate pack measures 979 x 304 mm (38.54 x 11.97 in) on 854 x 179 mm port centres, and by SWEP's published weight formula a 200-plate unit comes to about 193.7 kg (427.1 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. Depth is the one dimension that changes across the plate counts of a series, so measure the space behind the unit before moving to a larger pack.