PULSATION DAMPER

A pulsation damper (20, 120, 220) is disposed within a fluid volume (52) defined by a fluid volume wall (54) such that the pulsation damper (20, 120, 220) is exposed to pressure pulsations within the fluid volume (52). The pulsation damper (20, 120, 220) includes a pulsation damper first half (58, 158, 258) having a first damper wall (58a, 158a, 258a) which is flexible in response to the pressure pulsations; a pulsation damper second half (60, 160, 260) having a second damper wall (60a, 160a, 260a) which is flexible in response to the pressure pulsations; and a damping volume (62, 162, 262) defined between the pulsation damper first half (58, 158, 258) and the pulsation damper second half (60, 160, 260) such that the damping volume (62, 162, 262) is fluidly segregated from the fluid volume (52). One of the pulsation damper first half (58, 158, 258) and the pulsation damper second half (60, 160, 260) defines a spacing member (58e, 158e, 258b) which maintains separation between the fluid volume wall (54) and one of the first damper wall (58a, 158a, 258a)) and the second damper wall (60a, 160a, 260a).