B12Hx50/1P-SC-S 4x1 1/4"&28U(27)

The B12Hx50/1P-SC-S 4x1 1/4"&28U(27) is a 50-plate build of the SWEP B12. 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. Connections are listed as 4x1 1/4"&28U(27), in port order. The B12 plate pack measures 287 x 117 mm (11.3 x 4.61 in) on 234 x 63 mm port centres, and by SWEP's published weight formula a 50-plate unit comes to about 5.8 kg (12.8 lb) dry. The frame is published to 16.9 m3/h (74.41 GPM) - a port limit rather than a design flow. If the duty has changed since the original equipment went in, send the flows and both inlet conditions and we will confirm wether this configuration still fits.