Abstract: There is provided an attachment for an air spray gun, to be connected to the bottom of a grip of the spray gun. It includes a control valve to adjust the air flow rate, a gun coupling disposed in the body of the control valve to communicate with an outlet-side passage and thus connect to the spray gun, and a rotary joint having a hose coupling fixed thereto and which is to be fitted rotatably into an inlet-side passage to allow the hose coupling to communicate with the inlet-side passage. The hose coupling is freely turned in relation to the gun coupling fixed to the spray gun for the angle formed between them to freely be variable. A pressure gauge is installed on the attachment to communicate with the outlet-side passage and indicate the pressure of air supplied through the passage. The display surface of the pressure gauge forms an obtuse angle in relation to the axis of the gun coupling.

Abstract: There is provided an attachment for an air spray gun, to be connected to the bottom of a grip of the spray gun. It includes a control valve to adjust the air flow rate, a gun coupling disposed in the body of the control valve to communicate with an outlet-side passage and thus connect to the spray gun, and a rotary joint having a hose coupling fixed thereto and which is to be fitted rotatably into an inlet-side passage to allow the hose coupling to communicate with the inlet-side passage. The hose coupling is freely turned in relation to the gun coupling fixed to the spray gun for the angle formed between them to freely be variable. A pressure gauge is installed to the attachment to communicate with the outlet-side passage and indicate the pressure of air supplied through the passage. The display surface of the pressure gauge forms an obtuse angle in relation to the axis of the gun coupling.