Recyclable, pre-compression dispenser with trigger sprayer

A trigger sprayer having no metallic components, the trigger sprayer comprising:

• a pump body defining a flow path between an inlet and an outlet nozzle connecting to a cylindrical extension disposed between the inlet and the outlet and a ball valve retained in the pump body to seal the inlet;
• a resilient bellows sealed to the pump body;
• a trigger actuator attached to the pump body so as to allow for pivotal engagement of the trigger actuator in a manner that compresses the resilient bellows and returns to an initial position in response to spring force created by the resilient bellows;
• a cup-shaped pre-compression diaphragm having a flexible panel and a cylindrical wall extending away from a periphery of the panel, with an edge portion of the cylindrical wall sealingly coupled to a portion of the pump body and coaxially surrounding the cylindrical extension, so that an annular pre-compression chamber is defined by an inner surface of the cylindrical wall, the flexible panel and the cylindrical extension, wherein a central section of the flexible panel is positioned to seal the cylindrical extension and, when a pre-determined fluid pressure builds in the pre-compression chamber in response to actuation of the trigger, temporarily open in response to the pre-determined fluid pressure and dispenses pressurized fluid through the outlet nozzle;
• and
• a closure coupled to the pump body proximate the inlet.