B120THx80/1P-SC-M 2x42U+2x1 1/2"&35.1

Part number B120THx80/1P-SC-M 2x42U+2x1 1/2"&35.1 is the SWEP B120T frame carrying 80 plates. 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-SC fields read as single pass, with 316/316L stainless steel plates and a copper braze. The closing M is the pressure class: up to 45 bar at 135 C, fatigue tested. The connection field reads 2x42U+2x1 1/2"&35.1. The B120T plate pack measures 525 x 243 mm (20.67 x 9.57 in) on 456 x 174 mm port centres, and by SWEP's published weight formula a 80-plate unit comes to about 40.6 kg (89.6 lb) dry. The frame is published to 27.4 m3/h (120.64 GPM) - a port limit rather than a design flow. Check the connection field separately from the plate count: two units can be consistent in every other field and still not pipe up.