B18Hx30/1P-SC-U 4xS28.58&W35.1

This is the 30-plate B18: SWEP designation B18Hx30/1P-SC-U 4xS28.58&W35.1. Its H plates are the high-theta pattern - the choice when the leaving temperature is tight and the pump has head to spare. Reading the string: /1P is single pass; -SC is 316/316L stainless steel plates joined with copper. The closing U is the pressure class: 64 to 140 bar. Connections are listed as 4xS28.58&W35.1, in port order. The B18 plate pack measures 377 x 119.5 mm (14.84 x 4.7 in) on 329 x 72 mm port centres, and by SWEP's published weight formula a 30-plate unit comes to about 11.6 kg (25.5 lb) dry. The frame is published to 9 m3/h (39.63 GPM) - a port limit rather than a design flow. 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.