GRACO Pressure Relief Valve 4000 PSI (133991) - (SKU: 133991) and Exterior Insulation and Finish

and Exterior Insulation and Finish Systems (EIFS) using ToughTek® pumps and systems

particularly where check valves are required to prevent backflow and ensure proper flow direction

Use only compatible grease as recommended by GRACO

Non-GRACO parts may void the warranty and compromise equipment reliability

Ensure proper connection to GRACO DEF dispensing equipment using 3/4 inch BSPP fittings

GRACO Pressure Relief Valve 4000 PSI (133991) - (SKU: 133991) and Exterior Insulation and FinishThe GRACO 133991 is a pressure relief valve designed for use in high pressure lubrication systems. It is engineered to protect equipment by releasing excess pressure at a set point of 4000 PSI (275. 8 bar), ensuring safe operation and preventing damage to system components. The material is not specified in available documentation, but it is intended for use with grease and compatible with various GRACO lubrication equipment. Key Features: Pressure