DeVilbiss Pro Lite Spray Gun: The Complete Practical Guide
The DeVilbiss GTI Pro Lite G is a high-quality HVLP and High Efficiency spray gun for demanding industrial and workshop applications. In this guide, you will learn how to get the most out of your gun – from first setup to optimal settings, professional maintenance, and troubleshooting.
The DeVilbiss GTI Pro Lite G – engineered for high transfer efficiency and low overspray.
At a Glance: The DeVilbiss GTI Pro Lite G
This gravity spray gun impresses with its versatile technology and robust construction. Here are the key features at a glance:
| Features | Description / Advantages |
|---|---|
| Technology | Choice between HVLP (low pressure, low overspray) and High Efficiency (EPA-compliant, >65% transfer efficiency). |
| Materials | Anodized aluminum body, wear-resistant stainless steel nozzles and needle, nickel-plated brass air cap. |
| Application areas | Suitable for water-based and solvent-based coatings. Not suitable for highly corrosive/abrasive materials or halogenated hydrocarbons. |
| Weight | Only 446 g (without cup), ergonomic for fatigue-free work. |
| Cup | 500 ml acetal cup with antistatic properties and drip-free lid valve. |
High Efficiency
Over 65% material transfer, less overspray, more cost efficiency, and lower environmental impact.
Robust Durability
High-quality materials like anodized aluminum and stainless steel ensure long service life even in professional use.
Easy Maintenance
Thought-out design with easily replaceable wear parts such as nozzle, needle, and seals.
🛠️ Pro Tip: Avoid static! The antistatic cup must never be cleaned or rubbed with a dry cloth to avoid dangerous spark formation. Always use a damp cloth or antistatic wipes!
Ready for perfect coating results?
The DeVilbiss Pro Lite G combines precision, efficiency, and robust quality. Ideal for anyone who values professional results.
Discover the DeVilbiss Pro Lite at beschicht.comRecommended Basic Settings (Guideline Values)
For an optimal start, the following settings are good starting points. Adjust them according to material and desired results.
| Parameter | HVLP (e.g., HV30 air cap) | High Efficiency (e.g., TE10/TE20) |
|---|---|---|
| Inlet pressure | Max. 1.75 bar | 2.0 bar |
| Spray pressure at the gun | 0.69 bar (10 psi) | 0.69 bar (10 psi) |
| Nozzle size start* | 1.2–1.4 mm for basecoats 1.6–2.0 mm for primers/clear coats |
|
| Spray distance | 15–20 cm | |
* According to nozzle chart in the manual. Always replace nozzle and needle together.
Pro Workflow in 7 Steps
- Preparation: Mix and strain material according to manufacturer instructions. Insert cup filter.
- Connection: Connect the gun with a conductive air hose (min. 8 mm inner diameter) to a clean, oil- and moisture-free air supply.
- Set pressure: With a pressure gauge attached to the gun and the trigger pulled, set the pressure to the target value (1.75 bar for HVLP / 2.0 bar for High Efficiency).
- Fill the cup: Fill the cup up to max. 20 mm below the rim and close the lid.
- Presetting: Close the material control (28) clockwise. Open atomizing air control (16) fully counterclockwise.
- Test spray: Open material control 5 turns. Perform test spray. Pattern too dry? Reduce air pressure. Pattern too wet? Reduce material flow.
- Work technique: Hold gun at 90° to surface, distance 15–20 cm, constant speed, 75% overlap. Coat edges first.
Quick Troubleshooting: 4 Common Problems
| Problem | Possible Cause | Action |
|---|---|---|
| Irregular/one-sided spray pattern | Clogged horn holes in the air cap or contamination on the fluid nozzle. | 1. Clean air cap (brush, wooden stick). 2. Clean fluid nozzle. 3. If issue persists: replace nozzle and needle. |
| Dripping gun / leakage at front | Worn or damaged fluid nozzle/fluid needle. Foreign particles in nozzle. | 1. Always replace nozzle and needle together. 2. Backflush with compressed air or solvent. 3. Ensure correct size combination. |
| Too much overspray / dry spray mist | Air pressure too high. Gun too far from surface. | 1. Gradually reduce inlet pressure. 2. Reduce spray distance to 15–20 cm. 3. Increase material flow if necessary. |
| Paint running/sags | Material flow too high. Material too thin. Gun movement too slow. | 1. Close material control / choose smaller nozzle. 2. Mix material correctly. 3. Hold gun perpendicular and increase movement speed. |
Maintenance Checklist for Long Service Life
- After each use: Flush gun immediately with appropriate solvent. Wipe exterior with damp cloth. Do not immerse completely!
- Clean air cap: Only with soft brush, wooden stick, or toothpick. Never use metal tools to avoid damaging the holes.
- Check seals: If leaks occur at the packing nut or air valve, replace according to manual.
- Replace wear parts: Fluid nozzle and fluid needle are wear parts. Always replace together and tighten with torque wrench to 18–20 Nm.
- Cup care: Clean antistatic cup only with damp cloth. Check for cracks.
FAQ – Frequently Asked Questions About the DeVilbiss Pro Lite
1. Which materials is the gun suitable for?
It is suitable for most water-based and solvent-based paints, stains, and primers. Do not use with halogenated hydrocarbons (e.g., 1,1,1-trichloroethane) or highly corrosive/abrasive materials.
2. What is the difference between HVLP and High Efficiency?
HVLP (High Volume Low Pressure) operates at max. 0.7 bar (10 psi) at the air cap for minimal overspray. High Efficiency achieves a transfer efficiency of over 65% (EPA-compliant) and allows a higher inlet pressure (2 bar). The technology is determined by the air cap used.
3. How often do I need to replace nozzle and needle?
This depends on frequency of use and materials sprayed. Replacement is needed when spray pattern deteriorates, leaks occur, or visible wear appears. Always replace as a set.
4. Can I use the gun in a spray booth?
Yes, due to high transfer efficiency and low overspray, it is ideal for use in spray booths. Conductive hoses are mandatory to prevent electrostatic charge.
5. Where can I find spare parts?
All common wear parts such as nozzles, needles, air caps, seals, and repair kits are available as original spare parts. Relevant part numbers can be found in the manual or from authorized DeVilbiss distributors such as beschicht.com.
Conclusion
The DeVilbiss GTI Pro Lite G is a versatile and durable spray gun designed for both HVLP and High Efficiency applications. With correct setup, the optimal settings from this guide, and regular maintenance, you will achieve consistently professional coating results with high material efficiency and excellent surface quality. It is a reliable choice for every ambitious user and professional.
