This unloads the pump so the pump will not start under direct head pressure

Graco Contractor PC Gun Trigger Assembly

Air #6 VANE Cast Iron Air Motor - Reel Only - 1 1/2" X 250'

CWC-5005-4MGH

Horizontal Spray Gun

Devilbiss HGS SS Air Pilot Fluid Regulator - (1/4" NPSM(M) Inlet x 1/4" NPSM(M) Standpipe Outlet) 13/16 inch This unloads the pump soThis service bulletin covers installation, operation, preventive maintenance, parts replacement, and accessory items for HGS Fluid Regulators. HGS Fluid Regulators provide regulation of fluid to the spray gun without stopping the flow of material which can cause settling of pigmented materials. * Manual, non circulating, single gun fluid regulator, primarily used in conjunction with fluid pumps or dead end systems. ** Manual, non circulating, can be