Spray Gun/Nozzle Assembly

Product Specifications

Technical details and manufacturing context for Spray Gun/Nozzle Assembly

Definition

The spray gun/nozzle assembly is a critical component of a spraying station that controls the application of liquids such as paints, coatings, adhesives, or lubricants. It consists of the spray gun body, trigger mechanism, fluid nozzle, air cap, and needle valve, working together to atomize the material and shape the spray pattern for uniform surface coverage. The assembly is designed for use in machinery and equipment manufacturing, where precise application of fluids is essential. Key materials include stainless steel, brass, hardened steel, and PTFE seals, offering durability and chemical resistance. The assembly operates within specified parameters: air consumption of 150–300 L/min, fluid flow rate of 0.5–2.5 L/min, spray width of 150–350 mm at 200 mm distance, nozzle diameter of 0.5–2.0 mm, operating temperature of 5–50°C, and weight of 0.5–1.2 kg. The material is stainless steel 304 (ASTM A276), and connection threads are BSP or NPT (1/4–3/8 inch, per ISO 7-1). Maximum fluid pressure is 0.7 MPa, and air inlet size is 1/4 inch. Spray pattern is adjustable fan 60–90°. These values are reference ranges; verify model-specific values with the manufacturer. The assembly is not a standalone product but a component; ensure compatibility with your spraying system. Always confirm standards and specifications with the legal manufacturer or supplier before procurement.

Working Principle

The assembly operates by forcing fluid through a small orifice (nozzle) while simultaneously introducing compressed air through surrounding ports (air cap). This creates shear forces that atomize the fluid into fine droplets. The trigger controls fluid flow via a needle valve, while the air cap design determines the spray pattern (fan, cone, or round). Air consumption of 150–300 L/min improves atomization. Fluid flow rate is adjustable via the needle valve. The spray width at 200 mm distance is 150–350 mm. Nozzle diameter selection depends on coating viscosity. Operating temperature should be 5–50°C; outside this range may affect viscosity. Maximum fluid pressure is 0.7 MPa; exceeding may damage seals. The spray pattern is adjustable to fan 60–90°.

Common Materials

Stainless steel, Brass, Hardened steel, PTFE seals

Technical Parameters

Parameter	Typical range	Notes & selection driver
Air Consumption	150–300 L/min	Higher air consumption improves atomization
Fluid Flow Rate	0.5–2.5 L/min	Adjustable via needle valve
Spray Width	150–350 mm	At 200 mm distance
Nozzle Diameter	0.5–2.0 mm	Select based on coating viscosity
Operating Temperature	5–50 °C	Outside range may affect viscosity
Material	Stainless Steel 304	Corrosion resistantASTM A276
Weight	0.5–1.2 kg	Includes nozzle and air cap
Connection Thread	1/4–3/8 inch	BSP or NPTISO 7-1
Max Fluid Pressure	0.7 MPa	Exceeding may damage seals
Air Inlet Size	1/4 inch	Standard quick connect
Spray Pattern	Fan 60–90 °	Adjustable

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Fluid Nozzle Part
Controls fluid flow rate and initial atomization

Material: Hardened steel or ceramic
Air Cap Part
Shapes air flow to create spray pattern and secondary atomization

Material: Stainless steel or brass
Needle Valve
Regulates fluid flow when trigger is activated

Material: Stainless steel with PTFE tip
Trigger Mechanism
Manual control for activating fluid and air flow

Material: Aluminum alloy or plastic

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Spraying Station

View system integration details

Manufacturers of Spray Gun/Nozzle Assembly

Manufacturer profiles associated with Spray Gun/Nozzle Assembly.

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Frequently Asked Questions

What is the operating pressure range for this assembly?

Always verify the exact pressure rating for your specific model with the manufacturer.

What materials are used in the construction?

The assembly is made of stainless steel, brass, hardened steel, and PTFE seals. The material specification for the body is stainless steel 304 (ASTM A276). These materials provide corrosion resistance and durability.

How do I select the correct nozzle diameter?

Nozzle diameter ranges from 0.5 to 2.0 mm. Selection depends on the viscosity of the coating material. For higher viscosity, a larger nozzle is typically required. Consult the manufacturer's guidelines for specific recommendations.

What is the maximum fluid pressure?

The maximum fluid pressure is 0.7 MPa. Exceeding this limit may damage the seals. Ensure your system operates within this limit to maintain performance and safety.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0.5 to 10 bar
flow rate:	0.1 to 5 L/min
temperature:	-20°C to 120°C
slurry concentration:	Up to 60% solids by weight

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