DeVilbiss FLG-P5 Pressure-Feed Spray Gun: The Official Manual for Safety, Precision and Durability
The FLG-P5 Transtech Pressure-feed Spray Gun is the professional solution for high throughput and efficient coating of large areas. This manual summarizes the critical information from the official operating manual: from the important ATEX approval to precise pressure adjustment, step-by-step maintenance, and spare part replacement. This ensures you work safely, efficiently, and according to manufacturer specifications.
Important Safety & Certification Notes
Before operating the spray gun, the following points are mandatory:
- ATEX approval: The FLG5 spray gun is certified according to Directive 94/9/EC for use in explosive atmospheres of Zones 1 and 2 (protection class II 2 G X).
- Material limitations: The spray gun is designed for solvent-based coating materials. It is NOT suitable for halogenated hydrocarbons or highly abrasive/corrosive materials.
- Grounding: To prevent ignition sources caused by static charges, the spray gun must be grounded. The resistance between the spray gun and ground should be < 10⁶ ohms. Conductive hoses are essential.
- Initial commissioning: Before first use, flush the gun with a suitable solvent to remove protective oils and greases.
Personal Protective Equipment (PPE)
Always wear: respiratory protection (compatible with the material), safety glasses, and gloves during spraying and cleaning. Observe the material safety data sheets.
Technical Specifications (FLG-P5)
- Max. air inlet pressure: 12 bar
- Recommended working pressure (trigger pulled): 2.4 bar
- Air consumption: ~277 l/min
- Weight: 930 g
Construction Materials
Gun body: Aluminum (with stainless steel channels). Nozzle, needle, and fluid passages: stainless steel for chemical resistance and durability.
Step-by-Step: Proper Commissioning & Adjustment
Follow this sequence from the manual for optimal results:
- Prepare material: Mix according to manufacturer specifications and adjust to working viscosity.
- Secure needle: Turn adjustment knob (18) clockwise to lock needle movement.
- Open spray pattern: Fully open the fan adjustment valve (10) counterclockwise.
- Set air pressure (important!): With the trigger pulled, set the inlet pressure to the recommended 2.4 bar (a gauge at the gun inlet is recommended).
- Release material flow: Turn needle adjustment knob (18) counterclockwise until the first thread becomes visible.
- Test spray & fine adjustments:
- Coating too dry? Reduce air supply via pressure or air valve (22).
- Coating too wet? Reduce material flow via needle knob (18) clockwise or lower material pressure.
- Atomization too coarse? Increase air inlet pressure.
- Adjust spray pattern size: Turn fan adjustment valve (10) clockwise to reduce width.
- Technique: Hold gun at 90° to surface. Recommended distance: 150–200 mm. Coat edges first, overlap each pass by 50%, maintain steady speed.
Daily Maintenance & Cleaning (Preventive Maintenance)
These short steps after each workday greatly extend the life of your spray gun:
- Release pressure: Shut off air and material supply and relieve pressure from the lines.
- Clean air cap: Remove and clean the air cap (No. 622). Clean clogged holes only with a toothpick—never metal!
- Check nozzle tip: Inspect fluid nozzle (3) for cleanliness and damage. Remove dried paint residue.
- Lubrication: Daily oil the trigger pin (24), needle (16), and air valve stem (13).
Guide: Replacing Nozzle & Needle
When worn or changing to a different size (1.1 mm or 1.4 mm):
- Disassembly: Remove parts in this order: adjustment knob (18), spring (17), needle (16), retaining ring (1), air cap (2), nozzle (3).
- Inspection: Check the condition of the nozzle seal (4) and replace if necessary.
- Assembly: Install matching nozzle and needle (see table). Reassemble in reverse order.
- Tightening torque: Tighten fluid nozzle (3) to 16–20 Nm.
| Nozzle (Part No.) | Matching Needle (Part No.) | Size |
|---|---|---|
| SGK-0013-11 | SGK-0402-11 | 1.1 mm |
| SGK-0012-14 | SGK-0402-14 | 1.4 mm |
FAQ – Questions About the Manual and Operation
What does the ATEX approval "II 2 G X" actually mean?
"II" stands for equipment group (other than mining), "2" for category (high level of protection), "G" for gas/vapor/air mixtures, and "X" means that special operating conditions must be observed (see manual). It allows use in Zones 1 and 2.
Why must pressure be set with the trigger pulled?
Only in the open state (trigger pulled) does the actual operating pressure in the system establish itself. The static pressure (at rest) is higher and would lead to incorrect (too low) settings.
Where can I find the correct spare parts?
Use the official part numbers from the parts list (e.g., K-5044 for the seal kit, K-5032 for the fan control kit). These are available from authorized dealers like beschicht.com. This avoids hazards caused by incompatible parts.
Can I clean the spray gun in an automatic gun washer?
Yes, this is recommended. However, do not leave the gun in the washer for extended periods, as aggressive cleaners may damage seals and surfaces.
What should I watch out for when replacing the fan adjustment valve (10)?
Caution: Before installing the valve into the body, it must be turned counterclockwise into the fully open position. Otherwise, damage may occur.
Conclusion
The DeVilbiss FLG-P5 is a high-quality pressure-feed spray gun approved for demanding environments. Long and reliable service requires strict adherence to safety regulations, precise pressure adjustment according to manufacturer specifications, and consistent daily maintenance. By using this manual as a guide, you ensure not only your personal safety and compliance with regulations but also consistently excellent spray results and maximum equipment lifespan.
Source: Official Operating Manual "FLG-P5 Transtech Pressure-feed Spray Gun" (SB-E-2-792ISS.07) by Carlisle Fluid Technologies UK Ltd., 2018.
