The GRACO 21535-00 is a check valve designed for use with catalyst injection in GRACO equipment. Its material is not specified in available documentation, but it is engineered for reliable flow control and to prevent backflow in high-pressure fluid systems, particularly those handling catalysts in resin transfer molding (RTM) or similar applications.

Key Features:

• Check Valve
• 21535-00
• Designed for use with GRACO RTM injection systems and compatible with catalyst lines
• Prevents backflow of catalyst
• Engineered for high-pressure applications
• Reliable performance in demanding environments

Applications:
Used in GRACO RTM injection systems for polyester resin and gel-coat applications, ensuring safe and controlled catalyst injection.

Installation Notes:

• Use only genuine GRACO replacement parts to ensure system integrity, safety, and optimal performance.
• Verify all connections are secure before operating the unit
• Check for signs of damage and replace any damaged parts
• Follow equipment manual for specific installation and maintenance procedures