Abstract: Liquid spraying equipment, for example for paint, adhesives and chemicals, comprises a spray gun (30) having a luid outlet (53) to which liquid is pumped from a container, the outlet being adjaceent a pressurized air or other fluid outlet (34) to entrain the liquid and thereby atomize it. The liquid pump is housed in a separate unit of which a removable liquid container can be sealingly coupled. The unit also contains a pump to deliver pressurized air to a chamber with a hose ocnnection to the spray gun and with a tapping to the liquid container so as to pressurize the liquid and assist the liquid pump to deliver it to the spray gun through a pipe, possibly within the pressurized air hose. The flow of liquid through the outlet is regulated by a pin (38) or the like slidably mounted in a bore (35). A trigger mechanism (36) retracts the pin from the outlet against the force of a restoring spring (40). An adjustable limit stop (49) determines the degree of opening of the liquid outlet.

Abstract: Liquid spraying equipment, for example for paint, adhesives and chemicals, comprises a spray gun (30) having a luid outlet (53) to which liquid is pumped from a container, the outlet being adjaceent a pressurised air or other fluid outlet (34) to entrain the liquid and thereby atomise it. The liquid pump is housed in a separate unit ot which a removable liquid container can be sealingly coupled. The unit also contains a pump to deliver pressurised air to a chamber with a hose ocnnection to the spray gun and with a tapping to the liquid container so as to pressurise the liquid and assist the liquid pump to deliver it to the spray gun through a pipe, possibly within the pressurised air hose. The flow of liquid through the outlet is regulated by a pin (38) or the like slidably mounted in a bore (35). A trigger mechanism (36) retracts the pin from the outlet against the force of a restoring spring (40). An adjustable limit stop (49) determines the degree of opening of the liquid outlet.