B220Mx60/1P-SC-S 4x2"

This is the 60-plate B220: SWEP designation B220Mx60/1P-SC-S 4x2". The M plate sits between the H and L patterns, trading a little thermal length for a lower pressure drop. 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. The connection field reads 4x2". The B220 plate pack measures 524 x 202 mm (20.63 x 7.95 in) on 442 x 120 mm port centres, and by SWEP's published weight formula a 60-plate unit comes to about 29.6 kg (65.2 lb) dry. Maximum flow for the frame is 39 m3/h (171.71 GPM); that is a ceiling for the ports, not a duty point. If the flow on either side would excede the published ceiling, the answer is a larger frame, not more plates on this one.