Graco 104815 Regulator, Air – Precision Pressure Control for Spray Systems
Compatible Machines
- Graco fluid‑handling systems requiring regulated air supply
- Graco finishing and coating rigs where compressed air drives valves or actuators
- Graco spray packages and mobile units needing consistent air‑pressure control
- Graco industrial equipment where the air regulator 104815 is specified in service manuals
Product Description
The Graco 104815 Regulator, Air is an OEM‑specified pressure regulator designed to deliver consistent, precise control of compressed air in spray, fluid‑handling and finishing equipment. It features an 1/8″ inlet/outlet port size, a zinc‑plated body for durability in industrial environments, and an adjustment range typically around 0‑60 psi, making it well‑suited for controlling air signals within Graco systems.
Key Features
- Compact 1/8″ inlet/outlet size: Ideal for downstream control of air‑actuated devices.
- Zinc‑plated durable body: Built to resist corrosion and industrial wear.
- Precise pressure adjustment: Provides stable air feed to pneumatic components and spray controls.
- OEM part: Ensures fit, conformity and performance for Graco systems.
Technical Specifications
| Specification | Details |
| Part Number | 104815 |
| Port Size | 1/8″ (female) inlet/outlet |
| Adjustment Range | 0‑60 psi (approx.) |
| Material / Finish | Zinc‑plated metal body |
| Typical Use | Regulating control air for valves, actuators & processes |
Applications
This regulator is widely used in finishing and fluid‑handling systems where controlling air pressure reliably is critical. It is ideally suited for controlling pilot lines, air‑actuated valves, spray guns, tubing and dispensing systems that require stable air supply for consistent performance.
Performance Advantages
- Helps maintain consistent pneumatic actuation, thereby improving system repeatability and quality.
- Supports longer equipment life by avoiding pressure spikes or instability in air systems.
- Simplifies machine setup and reduces downtime by offering stable control at the air‑feed point.
- OEM compatibility ensures correct fit, reduces service errors, and helps maintain warranty support.
- Compact and rugged design fits easily into spray modules, control panels or mobile rigs.
Maintenance Tips
■ During service, ensure the inlet air is clean and free of debris since contamination can affect regulator performance.
■ Mount the regulator as close as possible to the device it serves, following the installed flow direction and using the arrow indicator on the body.
■ Adjust the knob or handle slowly; secure the lock nut once the correct pressure is achieved.
■ Inspect the diaphragm, springs and internals periodically; replace when leaks, oscillations or drift are observed.
Frequently Asked Questions
The regulator is typically used to control air pressure in the range of 0‑60 psi for downstream pneumatic actuation.
While the regulator’s specifications might match other systems, using the OEM part ensures exact compatibility, correct materials and optimal performance in Graco‑specified circuits.
Inspect the regulator during routine maintenance intervals; replace if performance drifts, if the knob begins to oscillate under load, or if contamination is detected in the air supply.
The regulator features 1/8″ female NPT inlet and outlet ports, matching typical air‑line connections in Graco systems.}
