B85Hx70/1P-SC-M 4x1"&22U

This is the 70-plate B85: SWEP designation B85Hx70/1P-SC-M 4x1"&22U. 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. It is catalogued with 4x1"&22U connections. The B85 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 70-plate unit comes to about 11.7 kg (25.7 lb) dry. The frame is published to 17 m3/h (74.85 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 whether this configuration still fits.