The GRACO 231663 President Hydra-Cat Fixed Ratio Proportioning Pump is a robust, air-powered pump designed to accurately proportion and pump two-component materials. It features three displacement pumps for reliable mixing at a fixed 4:1 ratio. The wetted parts are constructed from stainless steel, carbon steel, chrome plating, tungsten carbide, and Teflon®, ensuring durability and chemical resistance. This pump is intended for use in industrial applications requiring precise, high-volume material mixing and dispensing.

Key Features:

• Fixed Ratio Proportioning Pump
• President Hydra-Cat, Three Displacement Pumps, 4:1 Mix Ratio
• Wetted parts: stainless steel, carbon steel, chrome plating, tungsten carbide, Teflon®
• Maximum fluid inlet pressure: 750 psi (5.1 MPa, 51 bar); Maximum output pressure: 20.4 MPa (204 bar, 2960 psi)
• Designed for use with two-component materials in industrial mixing and dispensing systems
• Severe duty lowers for wear resistance
• Accurate fixed ratio proportioning (4:1 mix ratio)
• Air-powered operation for safety and reliability
• High-pressure capability for demanding applications
• Durable construction for long service life
• Ease of maintenance with accessible components

Applications:
Industrial mixing and dispensing of two-component materials such as coatings, adhesives, and sealants. Suitable for environments requiring high reliability and precise material proportioning.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and compatibility with existing systems.
• Mount the pump securely on a stand or wall as per GRACO guidelines
• Install fluid pressure gauges at the pump inlets to monitor feed pressures
• Never exceed 25% of the Hydra-Cat pump outbound fluid pressure on the feed supply
• Ensure all air and fluid components are compatible and properly connected
• Regularly inspect and maintain wetted parts for wear and chemical compatibility
• Follow GRACO installation diagrams and instructions for safe and efficient setup
• Use recommended air and fluid filters to protect the pump and extend its life
• Monitor cycle rates and air consumption for optimal operation
• Consult GRACO documentation or a specialist for customized system design