B20Hx32/1P-NSC-M 9.65+16+2x1"&22U

This is the 32-plate B20: SWEP designation B20Hx32/1P-NSC-M 9.65+16+2x1"&22U. The H plate is the obtuse chevron: it gives the most heat transfer per plate and the most pressure drop, so it suits duties where approach temperature matters more than pump head. The /1P-NSC fields read as single pass, with 316 channel plates, 304 cover plates 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 9.65+16+2x1"&22U. The B20 plate pack measures 324 x 94 mm (12.76 x 3.70 in) on 268.2 x 39 mm port centres, and by SWEP's published weight formula a 32-plate unit comes to about 3.3 kg (7.3 lb) dry. The frame is published to 9.7 m3/h (42.71 GPM) - a port limit rather than a design flow. 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.