ELECTROSTATIC SPRAY TOOL SYSTEM

摘要

A system (10) comprises an electrostatic spray tool (12) which includes a material passage configured to deliver a material, an air passage (122) through the electrostatic tool (12) configured to deliver compressed air for spraying the material, and a first duckbill valve (132) within the air passage (122) configured to block the backflow of the material in the air passage (122) past the duckbill (132). The system has the advantage of blocking the excess material to backflow through the electrostatic spray tool and protecting components from unnecessary maintenance.