B5THx40/1P-SC-M 4x3/4"&16

B5THx40/1P-SC-M 4x3/4"&16 designates a SWEP B5T brazed plate heat exchanger with 40 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. It is catalogued with 4x3/4"&16 connections. The B5T plate pack measures 193 x 76 mm (7.6 x 2.99 in) on 154 x 40 mm port centres, and by SWEP's published weight formula a 40-plate unit comes to about 2.3 kg (5.1 lb) dry. The frame is published to 4 m3/h (17.61 GPM) - a port limit rather than a design flow. Where a nameplate is worn, the plate count and the connection sizes are usually enough to separate this build from its neighbours in the series.