The Graco Triton 308 233500 is an aluminum air operated double diaphragm pump designed for finishing applications, coating circulation, and controlled fluid transfer. This bare pump version uses NPT threaded connections and a 1:1 pressure ratio, making it suitable for industrial systems that require stable delivery of waterborne coatings, solvent-based paints, catalysts, and other compatible materials.
The pump provides a maximum free flow rate of 32 L/min and a maximum fluid working pressure of 8 bar. Its air-driven diaphragm mechanism delivers low pulsation output, helping maintain smooth material flow during spraying, circulation, priming, and color changes.
Part number 233500 uses a 3/4 in. NPT fluid inlet, a 3/8 in. NPT fluid outlet, and a 1/4 in. NPT air inlet. The aluminum construction provides a practical balance of durability and weight for finishing equipment, wall-mounted circulation systems, mobile spray packages, and compact industrial fluid-transfer installations.
The Triton 308 design is especially suitable for applications where low shear is important. It helps reduce degradation of shear-sensitive materials while providing reliable pneumatic operation in coating and finishing environments.
Key Features
- Triton 308 1:1 air operated diaphragm pump
- Aluminum NPT threaded pump version
- Maximum flow rate of 32 L/min
- Maximum fluid pressure of 8 bar
- 3/4 in. NPT fluid inlet
- 3/8 in. NPT fluid outlet
- 1/4 in. NPT air inlet
- Low pulsation material delivery
- Low shear handling for coatings and sensitive fluids
- ATEX and CE compliant design
- Approximate pump weight of 4 kg
Applications
- Automotive refinishing systems
- Industrial paint circulation
- Waterborne coating transfer
- Solvent-based coating systems
- Wood finishing equipment
- Metal finishing lines
- Spray booth fluid supply
- Catalyst and compatible chemical transfer
FAQ
Q1: What is the maximum flow rate of the 233500 pump?
A: The maximum free flow rate is 32 L/min, equivalent to 8.5 GPM.
Q2: What is the maximum working pressure?
A: The maximum fluid working pressure is 8 bar, 0.8 MPa, or 115 psi.
Q3: What are the connection sizes?
A: The fluid inlet is 3/4 in. NPT, the fluid outlet is 3/8 in. NPT, and the air inlet is 1/4 in. NPT.
Q4: What material is the 233500 pump made from?
A: This part number is the aluminum Triton 308 pump version.
Q5: What fluids can this pump handle?
A: It is designed for compatible waterborne paints, solvent-based paints, catalysts, coatings, and industrial finishing fluids.
Q6: Can this aluminum pump be used with every solvent?
A: No. Do not use halogenated hydrocarbon solvents such as methylene chloride or 1,1,1-trichloroethane. Always confirm wetted-material compatibility before use.
Q7: Is this a complete spray package?
A: No. Part number 233500 is the bare pump. Hoses, regulators, guns, and mounting accessories are selected separately as needed.
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