The GRACO 205122 is a manual back pressure regulator designed to maintain system pressure regardless of flow demand. It features stainless steel, plated steel, brass, tungsten carbide, Buna-N impregnated nylon, and elastomer-treated cellulose fiber wetted materials, making it compatible with catalyst and waterborne materials. Its primary function is to control upstream fluid pressure in small circulation systems, allowing operators to trigger guns, valves, and other flow controls without changing system pressure.

Key Features:

• Back Pressure Regulator
• Low Pressure Mini, 3/8 (m) x 3/8 (f)
• Stainless steel, plated steel, brass, tungsten carbide, Buna-N impregnated nylon, elastomer-treated cellulose fiber
• 180 Max psi
• Catalyst and waterborne materials
• MSD201EN, Loctite 567 Low Strength Thread Sealant, Safety Data Sheet (English)
• Closed loop control maintains system pressure regardless of flow demand
• Tungsten and carbide materials ensure low wear and long life
• Compact and lightweight design saves space and reduces payload
• PTFE/Elastomer hybrid diaphragm withstands wear while maintaining accurate responsiveness
• Air operated model available for automated control (conversion kit 237448)

Applications:
Used in small circulation systems to maintain consistent pressure for triggering guns, valves, and other flow controls, especially where compatibility with catalyst and waterborne materials is required.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with GRACO equipment.
• Ensure all connections are secure and leak-free
• Follow manufacturer guidelines for installation and maintenance
• Use appropriate thread sealant as specified in documentation
• Regularly inspect for wear and replace components as needed