Fpro P Manual Spray Gun: HVLP and LVLP Explained
The Short Version
- The Fpro P Manual Spray Gun is a professional airspray gun for controlled application of solvent-based, water-based and high-solids coatings.
- It supports Conventional, HVLP and LVLP airspray technologies, giving operators flexibility across different finishing requirements.
- Adjustable fluid flow, fan width and air pressure help the operator control coverage, atomisation and finish quality.
- Its lightweight, ergonomic design, chemical-resistant fluid passages and straightforward maintenance suit demanding industrial use.
- Professional Finishing Supplies provides technical advice, genuine parts, servicing and repairs to support the gun throughout its working life.
The Fpro P Manual Spray Gun is designed for industrial finishing jobs where the operator needs direct control over how a coating is applied. It is a manual airspray gun, which means compressed air is used to break liquid coating into fine droplets and project those droplets towards the workpiece.
That basic description covers several different ways of working. The FPro P supports Conventional, HVLP and LVLP airspray technologies. Understanding the difference helps an operator choose a suitable air cap and set up the gun more deliberately, rather than treating every coating and component in exactly the same way.
What is the Fpro P Manual Spray Gun designed to do?
The gun is made for professional finishing applications that require a consistent spray pattern and precise manual control. It can be used with solvent-based, water-based and high-solids coatings, subject to checking that the particular material and equipment configuration are suitable for the job.
Atomisation is the process of breaking the liquid coating into small droplets. Good atomisation helps those droplets form an even spray pattern. Poor atomisation can produce an uneven finish, excessive build-up or a pattern that is difficult to control.
The FPro P combines several controls to help the operator manage this process:
- Fluid flow control adjusts how much coating reaches the air cap.
- Fan width control changes the shape and width of the spray pattern.
- Air pressure control helps regulate the air used to atomise and apply the coating.
These adjustments matter because a small component, a broad panel and a detailed touch-up area do not usually need the same spray pattern. The operator can alter the settings for the job instead of relying on a fixed output.
The gun is part of Professional Finishing Supplies’ professional airspray range. It is also listed within the company’s category for Fpro P Manual Spray Gun equipment, where the available product information can be checked before specifying a gun for an application.
How do Conventional, HVLP and LVLP airspray technologies differ?
The three technologies describe the way air is used at the gun to atomise the coating. The choice affects the balance between spray force, air consumption, control and transfer efficiency.
Conventional airspray
Conventional airspray uses compressed air to atomise the coating and produce a spray pattern. It can be useful where the operator needs a familiar airspray process and a particular combination of atomisation and application speed.
The FPro P has a Conventional air cap option, alongside its HVLP and LVLP options. The right choice depends on the coating, the component, the required finish and the available air supply. Those details should be confirmed during product selection rather than assumed from the gun name alone.
What does HVLP mean?
HVLP stands for High Volume Low Pressure. The technology uses a relatively high volume of air at low pressure to atomise and apply the coating. In practical terms, HVLP is associated with controlled application and high transfer efficiency, meaning a greater proportion of the sprayed material can reach the workpiece rather than becoming overspray.
HVLP can be a sensible option where controlling material use and overspray is a priority. It still needs correct fluid, fan and air settings. Low pressure does not remove the need for preparation, a suitable air supply or a coating that can be atomised properly.
What does LVLP mean?
LVLP stands for Low Volume Low Pressure. It is designed to work with a lower volume of air and low pressure. This can provide a useful balance of control and air demand, although the result depends on the coating, nozzle and air cap configuration.
LVLP may be worth considering where the available air supply is a key constraint, or where the operator wants controlled application with lower air volume. As with HVLP, the setting must be matched to the material and the job. A coating that is too thick or a spray pattern that is too wide can still lead to poor results.
The important point is that HVLP and LVLP are not automatic finish settings. They are application technologies. The FPro P gives the operator the flexibility to select the appropriate air cap and then adjust the gun for the work being carried out.
What features help with finish quality and control?
The Fpro P Manual Spray Gun includes Paint Restrictor and Vortex technologies. These are intended to support fine atomisation, transfer efficiency and finish quality. Fine atomisation is particularly relevant where the coating must be distributed evenly across the surface without obvious heavy droplets or an inconsistent pattern.
Its responsive trigger action also supports manual control. The trigger operates the spraying process in the operator’s hand, so a responsive action can make it easier to start, maintain and stop application accurately. This is useful when working around edges, openings or areas where the coating must be carefully placed.
The fan width adjustment is another practical feature. A narrow fan can help with smaller areas, while a wider fan may cover a broader surface more efficiently. The correct approach is to overlap passes consistently and keep the gun movement controlled. Exact distances, pressures and coating reductions are application-specific and should be established for the material and component rather than copied from a general guide.
The gun’s lightweight and ergonomic design is intended to improve balance and comfort during extended spraying sessions. This matters in manual work because awkward handling can make it harder to maintain a consistent angle and speed. A well-balanced gun does not replace operator technique, but it can make controlled spraying more manageable over a longer task.
Compatibility with both BSP and NPS fittings can help the gun integrate with existing spray systems. The connection still needs to be checked carefully before installation, including the hose, air supply and fluid arrangement.
Which coatings and jobs can it handle?
The FPro P is compatible with solvent-based, water-based and high-solids coatings. These materials can behave differently during spraying. Viscosity, drying behaviour and the required film build all affect how the gun should be configured.
A high-solids coating contains a relatively high proportion of material that remains after the carrier has evaporated or otherwise leaves the applied film. It may need particular attention to fluid delivery and atomisation. Water-based and solvent-based coatings also have different handling requirements, so the operator should follow the coating manufacturer’s instructions and use suitable cleaning and safety procedures.
The gun’s flexibility makes it suitable for a wide range of industrial finishing applications, but flexibility should not be confused with universal suitability. The correct fluid components, air cap and configuration must be matched to the coating and production requirement. Professional Finishing Supplies can provide information about its equipment and technical approach when a specification needs to be discussed.
A worked example: setting up the gun for a broad panel
Consider an operator applying a water-based coating to a broad metal panel. The aim is an even finish across the panel, with controlled material use and no unnecessary build-up at the edges.
- The operator first confirms that the coating is suitable for the equipment and selects an appropriate FPro P air cap technology. HVLP may be considered where transfer efficiency and controlled application are priorities. LVLP may be considered where lower air volume is relevant to the available system.
- The operator adjusts the fan width so the pattern covers a practical section of the panel without becoming difficult to control.
- Fluid flow is set to provide enough coating for a continuous pass, without flooding the surface.
- Air pressure is adjusted to support proper atomisation. The operator checks the spray pattern on a suitable test surface before coating the finished component.
- The panel is sprayed with steady, overlapping passes. The operator watches for dry spray, heavy edges, uneven coverage or visible droplets and makes one adjustment at a time.
This example shows why the gun’s controls work together. If the fan is widened without considering fluid flow, the coating may become too light across the pass. If fluid flow is increased without checking atomisation, the pattern may become heavy. If the air setting is unsuitable, the finish may become uneven.
There is no responsible universal setting for every coating and panel. The correct result comes from matching the air cap, fluid flow, fan width and air pressure to the material and the job. A test panel or test area is a practical way to confirm the pattern before production work begins.
How is the Fpro P built for industrial maintenance?
The FPro P has stainless steel fluid passages, with POM-C and polypropylene components. These materials provide chemical resistance, which is valuable when the gun is exposed to coatings and cleaning materials. The particular cleaning method must still be compatible with the coating, equipment and component materials.
Its precision-engineered metal body has a durable anodised finish intended to withstand demanding industrial environments. The gun is also designed for straightforward maintenance and cleaning. Regular cleaning helps prevent dried coating from affecting the fluid path, air cap or spray pattern.
Maintenance should be treated as part of the application process, not as an afterthought. Before cleaning, the operator should follow the relevant equipment and coating safety instructions. The gun should be checked for contamination, damage and worn parts before it is returned to service.
What support, repairs and parts are available?
Choosing a manual spray gun involves more than comparing its features at the point of purchase. Parts wear, cleaning mistakes happen and a change in coating may require technical advice. Access to support can help avoid unnecessary downtime and keep the equipment working as intended.
Professional Finishing Supplies provides servicing, repairs and technical support for finishing equipment, including Sames Kremlin systems. The service covers routine servicing, replacement parts, fault diagnosis and equipment refurbishment. The company also has access to genuine parts and provides support throughout the equipment’s lifecycle.
For the FPro P, the website includes both Fpro P Manual Spray Gun kit parts and individual Fpro P Manual Spray Gun parts. Kit parts can be useful when several related service items are required, while individual parts may suit a more specific repair. The correct part should be confirmed against the gun configuration before ordering.
Technical advice is particularly useful when the problem is not immediately clear. An inconsistent fan, poor atomisation or a change in fluid delivery may relate to cleaning, air supply, fluid settings, a worn component or coating suitability. Professional Finishing Supplies can help with product specification, fault diagnosis and the practical questions that arise during use.
Is the Fpro P a good choice for your application?
The Fpro P Manual Spray Gun is a strong option for industrial users who need a manual airspray gun with flexibility across Conventional, HVLP and LVLP technologies. Its adjustable controls, fine atomisation features, ergonomic design and chemical-resistant fluid passages support controlled, repeatable finishing work.
It is most suitable where the operator wants direct control and the application involves different coating types or component sizes. It may be less suitable if the process requires a fully automatic gun or a different application method. That decision depends on production volume, coating behaviour, required finish and the existing spray system.
Before choosing the gun, confirm the coating, air supply, fittings, air cap technology, fluid arrangement and available service support. Professional Finishing Supplies can help assess those requirements and supply the parts, repairs and advice needed after installation.
Common Questions
What is the Fpro P Manual Spray Gun used for?
It is a professional manual airspray gun for applying solvent-based, water-based and high-solids coatings in industrial finishing applications. Its fluid flow, fan width and air pressure controls help the operator adjust the application to the component and coating.
What is the difference between HVLP and LVLP spray technology?
HVLP means High Volume Low Pressure and uses a relatively high volume of air at low pressure. LVLP means Low Volume Low Pressure and uses a lower volume of air at low pressure, which may suit applications where available air supply and controlled application are key considerations.
Can the Fpro P Manual Spray Gun apply water-based coatings?
Yes, the FPro P is compatible with water-based coatings as well as solvent-based and high-solids coatings. The coating, fluid components, air cap and settings should be checked for suitability before production spraying.
How should an Fpro P spray gun be maintained?
Clean the gun after use in line with the coating and equipment safety instructions, and check the air cap, fluid path and other components for contamination or wear. Professional servicing and replacement parts can help maintain spray performance and reduce avoidable downtime.
Are spare parts and repairs available for the Fpro P?
Professional Finishing Supplies provides servicing, repairs, technical support and access to genuine parts for finishing equipment. FPro P kit parts and individual parts are available, subject to confirming the correct gun configuration.