B80SHx80/1P-SPS-M 4x1 1/4"&28U(27)

B80SHx80/1P-SPS-M 4x1 1/4"&28U(27) designates a SWEP B80S brazed plate heat exchanger with 80 plates in the pack. 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-SPS fields read as single pass, with 316 stainless steel plates and a stainless, copper free braze. The closing M is the pressure class: up to 45 bar at 135 C, fatigue tested. It is catalogued with 4x1 1/4"&28U(27) connections. The B80S plate pack measures 526 x 119 mm (20.71 x 4.69 in) on 470 x 63 mm port centres, and by SWEP's published weight formula a 80-plate unit comes to about 20.7 kg (45.5 lb) dry. The frame is published to 17 m3/h (74.85 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.