A spray coating apparatus includes a tank, spray gun, pump, and base, the pump having an inlet and outlet, the tank detachably mounted on the base, the pump disposed in the base; a switching valve at the bottom of the tank, a communication structure communicating the switching valve with the inlet on the base; the tank, when being mounted on the base, actuates the switching valve to switch from closed to open, and when detached from the base, actuates the switching valve to switch from open to closed. If residual coating material remains in the tank after coating, the tank may be removed to empty the residual material or transfer it back to an external container. In addition, due to detachable setting of the tank, it is only needed to replace the worn tank alone, so that replacement cost may be reduced.

A spray coating apparatus includes a tank, spray gun, pump, and base, the pump having an inlet and outlet, the tank detachably mounted on the base, the pump disposed in the base; a switching valve at the bottom of the tank, a communication structure communicating the switching valve with the inlet on the base; the tank, when being mounted on the base, actuates the switching valve to switch from closed to open, and when detached from the base, actuates the switching valve to switch from open to closed. If residual coating material remains in the tank after coating, the tank may be removed to empty the residual material or transfer it back to an external container. In addition, due to detachable setting of the tank, it is only needed to replace the worn tank alone, so that replacement cost may be reduced.

A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.

A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.