B56Hx140/1P-SC-S 4xDN65C cs

This is the 140-plate B56: SWEP designation B56Hx140/1P-SC-S 4xDN65C cs. 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 S is the pressure class: 31 bar at 155 C. The connection field reads 4xDN65C cs. The B56 plate pack measures 525 x 243 mm (20.67 x 9.57 in) on 430 x 148 mm port centres, and by SWEP's published weight formula a 140-plate unit comes to about 58.8 kg (129.6 lb) dry. Maximum flow for the frame is 76.2 m3/h (335.50 GPM); that is a ceiling for the ports, not a duty point. If any field on your nameplate differs from the string above, tell us which one; a single letter is relevant to both rating and fit.