| 摘要 |
<p>A liquid spray gun in which all wear parts, namely the armature, spring, valve needle or ball, valve seat and spray nozzle can be quickly and easily replaced with minimal interruption of a production line. A replacement parts module contains all these wear parts. The module can be quickly removed from the gun as a unit and easily replaced with a new module. The invention can be applied to an electric spray gun, in which grooves and O-rings are provided on the exterior of the module housing to provide a fluid seal between the module housing and the coil housing to which the module housing is secured. All fluid and electric lines associated with the gun are attached to the coil housing so that no lines need to be disconnected when the module is removed and replaced. Further, no individual parts, such as springs, are loose during this operation.</p> |
