E8LASHx70/1P-SC-S 4x3/4"(20)

E8LASHx70/1P-SC-S 4x3/4"(20) designates a SWEP E8LAS brazed plate heat exchanger with 70 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. 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. The connection field reads 4x3/4"(20). The E8LAS plate pack measures 316 x 74 mm (12.44 x 2.91 in) on 278 x 40 mm port centres, and by SWEP's published weight formula a 70-plate unit comes to about 4.5 kg (10.0 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. Depth is the one dimension that changes across the plate counts of a series, so measure the space behind the unit before moving to a larger pack.