B320HTLx80/1P-SC-S 4x2 1/2"

B320HTLx80/1P-SC-S 4x2 1/2" designates a SWEP B320HT brazed plate heat exchanger with 80 plates in the pack. Its L plates are the low-theta pattern: less pressure drop per plate, and correspondingly more plates for the same duty. 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 4x2 1/2" connections. The B320HT plate pack measures 525 x 243 mm (20.67 x 9.57 in) on 441 x 159 mm port centres, and by SWEP's published weight formula a 80-plate unit comes to about 44.5 kg (98.0 lb) dry. The frame is published to 61.7 m3/h (271.66 GPM) - a port limit rather than a design flow. For a new duty, send the inlet temperature on each side and the flows, and we will say immediately whether this plate count is the right one.