AirCoat Spray System Diaphragm Pump Parts
The AirCoat Spray System Diaphragm Pump Parts category includes OEM replacement components engineered to maintain smooth, pulse-free fluid delivery and stable pressure regulation in Titan AirCoat air-assisted airless spray systems.
The diaphragm pump is one of the most critical fluid-handling sections of the sprayer, responsible for moving coating material consistently while reducing pressure fluctuations that can affect finish quality.
These components are designed for professional finishing applications requiring controlled atomization, reduced overspray, and reliable long-term performance.
Key Components & Pump Performance
Key components in this assembly include the Titan 0278240 Diaphragm Assembly, Titan 0270494 Diaphragm Ring, Titan 0270529 Stem Valve, Titan 0047373 Pressure Regulating Spring, Titan 0089475 Pressure Valve Needle, and Titan 0508193A Pump Head.
Together, these parts regulate fluid movement, maintain pressure stability, and reduce pulsation throughout the spraying cycle.
Regular inspection of diaphragms, seals, springs, and valves helps prevent pressure loss, leakage, and inconsistent spray patterns.
The diaphragm pump assembly is commonly used in fine-finish wood coatings, cabinetry, industrial metal finishing, enamels, primers, lacquers, and other professional coating environments where smooth fluid control is essential.
The diaphragm-based design also reduces wear compared to traditional piston-style pump systems, improving service life and operational consistency.




















