B25THx70/1P-SC-S 4x1"(20)

Part number B25THx70/1P-SC-S 4x1"(20) is the SWEP B25T frame carrying 70 plates. 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. The connection field reads 4x1"(20). The B25T plate pack measures 526 x 119 mm (20.71 x 4.69 in) on 479 x 72 mm port centres, and by SWEP's published weight formula a 70-plate unit comes to about 14.6 kg (32.1 lb) dry. Maximum flow for the frame is 9 m3/h (39.63 GPM); that is a ceiling for the ports, not a duty point. It is not necessary to send drawings for a like-for-like replacement - the string above carries the whole build.