B18Hx120/1P-SC-U 4xS28.58&W35.1

The B18Hx120/1P-SC-U 4xS28.58&W35.1 is a 120-plate build of the SWEP B18. 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. The /1P-SC fields read as single pass, with 316/316L stainless steel plates and a copper braze. The closing U is the pressure class: 64 to 140 bar. The connection field reads 4xS28.58&W35.1. The B18 plate pack measures 377 x 119.5 mm (14.84 x 4.7 in) on 329 x 72 mm port centres, and by SWEP's published weight formula a 120-plate unit comes to about 34.1 kg (75.2 lb) dry. The frame is published to 9 m3/h (39.63 GPM) - a port limit rather than a design flow. Treat each side as an independent circuit when you ask for a quote: give both flows and what each fluid is.