Graco 162642 Leather Cup

The Graco 162642 Leather Cup operates by creating a sealing interface within pump or fluid handling systems to control the movement of liquid during pressure cycles. It works through flexible material that expands and contracts against the cylinder wall as pressure is applied and released, allowing controlled fluid displacement during reciprocating pump action. This is positioned inside compatible pump assemblies, usually within the piston or plunger system, where it engages directly with the cylinder bore. It interfaces with the pump housing, piston rod, and internal sealing components within designated fluid delivery or spray equipment configurations.