B8LASHx48/1P-SC-M 6.5+9.65+2x3/4"&16

B8LASHx48/1P-SC-M 6.5+9.65+2x3/4"&16 designates a SWEP B8LAS brazed plate heat exchanger with 48 plates in the pack. 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 M is the pressure class: up to 45 bar at 135 C, fatigue tested. Connections are listed as 6.5+9.65+2x3/4"&16, in port order. The B8LAS plate pack measures 317.7 x 76.2 mm (12.51 x 3.00 in) on 278 x 40 mm port centres, and by SWEP's published weight formula a 48-plate unit comes to about 3.7 kg (8.1 lb) dry. Maximum flow for the frame is 4 m3/h (17.61 GPM); that is a ceiling for the ports, not a duty point. Where a nameplate is worn, the plate count and the connection sizes are usually enough to seperate this build from its neighbours in the series.