E8ASHx42/1P-SC-S 4x3/4"(20)

Part number E8ASHx42/1P-SC-S 4x3/4"(20) is the SWEP E8AS frame carrying 42 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. The /1P-SC fields read as single pass, with 316/316L stainless steel plates and a copper braze. The closing S is the pressure class: 31 bar at 155 C. It is catalogued with 4x3/4"(20) connections. The E8AS plate pack measures 315 x 74 mm (12.40 x 2.91 in) on 278 x 40 mm port centres, and by SWEP's published weight formula a 42-plate unit comes to about 2.9 kg (6.5 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 separate this build from its neighbours in the series.