B25THx70/1P-SC-M 2x28U+2x1"&22U

This is the 70-plate B25T: SWEP designation B25THx70/1P-SC-M 2x28U+2x1"&22U. Its H plates are the high-theta pattern - the choice when the leaving temperature is tight and the pump has head to spare. The /1P-SC fields read as single pass, with 316/316L stainless steel plates and a copper braze. The closing M is the pressure class: up to 45 bar at 135 C, fatigue tested. Connections are listed as 2x28U+2x1"&22U, in port order. 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. The frame is published to 9 m3/h (39.63 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.