A clamping device for a sprayer can is provided, including a shell body. The shell body includes a grip portion and a clamping portion for clamping one end of a sprayer can. The sprayer can is provided with a dispenser valve. The clamping portion includes a circumferential wall, and the circumferential wall defines a space for receiving the dispenser valve and a receiving opening communicating with the space. The circumferential wall is further formed with a window which communicates with the space, and the dispenser valve can spray through the window. The circumferential wall includes first flexible portions and at least one second flexible portion. At least one said second flexible portion is connected between every two adjacent first flexible portions. The second flexible portion is greater than the first flexible portion in flexibility.

A sprayer apparatus for dispensing fluid from an aerosol spray can includes a tube which is couplable to a valve stem of the aerosol spray can. A spray can valve actuator is coupled to the tube and couplable to the spray can. The spray can valve is operable to depress the valve stem to fluidly couple a chamber of the aerosol spray can and the tube. A dispenser gun is attached to the tube and is operable to release the fluid supplied through the tube.

A sprayer apparatus for dispensing fluid from an aerosol spray can includes a tube which is couplable to a valve stem of the aerosol spray can. A spray can valve actuator is coupled to the tube and couplable to the spray can. The spray can valve is operable to depress the valve stem to fluidly couple a chamber of the aerosol spray can and the tube. A dispenser gun is attached to the tube and is operable to release the fluid supplied through the tube.