Industrial Spray Technology

Industrial Spray Nozzles & Spray Technologies

LGN Group supplies industrial spray nozzle solutions for precise atomization, cleaning, cooling, coating, spray drying and process applications, with a strong focus on Delavan® spray technologies and application-specific nozzle selection.

Delavan® Spray Technology Focus Product selection spans conventional spray patterns as well as advanced technologies including SDX® spray drying, Swirl-Air™, Cool-Cast® and specialized atomizing solutions.

Industrial Spray Nozzles Spray Drying Air Atomising CIP & Cleaning OEM Identification

Delavan industrial spray nozzles and spray technology product collection supplied by LGN Group

30,000+ Delavan component types Broad spray technology coverage for manufacturing and process applications.

Spray Engineering

From Standard Spray Patterns to Advanced Atomization Technology

Correct nozzle selection affects spray coverage, droplet size, distribution, process efficiency and product quality. LGN supports customers with nozzle identification and sourcing across standard industrial spray patterns, hygienic process applications and specialized Delavan spray technologies.

Industrial Spray Patterns

Flat spray, hollow cone and solid cone configurations for washing, cooling, coating, rinsing and general process duties.

Atomisation Solutions

Air atomising, airless and dual-fluid technologies for applications requiring controlled droplet formation and fine sprays.

Process & Cleaning

Nozzle solutions for Cleaning in Place, tank cleaning, process washing and other industrial cleaning requirements.

Advanced Spray Technology

Delavan technologies for spray drying, precision atomization, controlled cooling and engineered application-specific duties.

Featured Delavan® Technology Families Dedicated technology sections are developed later in this page.

SDX® Swirl-Air™ Cool-Cast® Dela-Fit™ VCN™

Delavan® Product Structure

Industrial Spray Nozzle Categories

The LGN nozzle portfolio is organized around Delavan’s industrial spray technology families, helping users move from application requirements to the correct spray pattern, atomization method and specialist nozzle design.

Important: This section follows the Delavan industrial spray nozzle taxonomy rather than a generic nozzle classification. Dedicated innovation technologies such as SDX®, Swirl-Air™ and Cool-Cast® are introduced here and explored in greater technical depth in Part 3.

01 Spray Pattern

Flat Spray

Fan-shaped spray patterns for uniform linear coverage across washing, coating, rinsing, cooling and process applications.

Typical duties: washing, coating, cooling, rinsing, surface treatment

02 Spray Pattern

Hollow Cone

Circular spray distribution with concentration around the outer perimeter, suitable for fine atomization and process coverage.

Typical duties: cooling, gas treatment, humidification, chemical processing

03 Spray Pattern

Solid Cone

Filled-cone spray coverage for applications requiring liquid distribution across the entire circular or square spray area.

Typical duties: washing, quenching, cooling, dust control, process injection

04 Atomisation

Air Atomising

Dual-fluid atomizing solutions combining liquid and compressed air for fine droplets and controlled spray characteristics.

Typical duties: coating, humidification, cooling, lubrication, fine spraying

05 Atomisation

Airless

Pressure-driven atomization without compressed air, suited to processes requiring controlled liquid delivery and robust operation.

Typical duties: spraying, coating, cooling, process injection

06 Cleaning

Cleaning in Place

Spray devices and nozzle solutions for internal equipment, vessel and process-system cleaning without dismantling.

Typical duties: CIP, vessel cleaning, tank washing, hygienic process cleaning

07 Spray Drying

SDX® Spray Drying

Delavan’s specialist spray-drying nozzle family for controlled atomization in powder-production and process-drying applications.

Typical duties: dairy powders, food ingredients, chemicals, pharmaceutical processing

08 Advanced Atomisation

Swirl-Air™

A specialist air-assisted atomization technology engineered for fine sprays, controlled droplet size and difficult process duties.

Typical duties: fine atomization, cooling, coating, specialized process spraying

Delavan Cool-Cast nozzle OEM product collection

09 Special Technology

Cool-Cast® Nozzles

Delavan technology developed for specialized cooling and spray distribution duties where consistency and controlled droplets matter.

Typical duties: industrial cooling, controlled spray distribution, process cooling

10 Modular Nozzles

Dela-Fit™

Modular nozzle components designed for practical assembly, replacement and configuration across industrial spray duties.

Typical duties: modular spray setups, maintenance-friendly installations

11 Application Specific

Special Purpose

Application-specific nozzle designs for duties that fall outside standard spray patterns or require a specialized operating principle.

Typical duties: custom spraying, unusual process conditions, specialist machinery

12 Components

Accessories

Supporting components used to install, adapt, maintain and optimize industrial spray nozzle systems and assemblies.

Typical items: fittings, holders, adapters, strainers, mounting components

More Than a Generic Nozzle Catalogue

The next section focuses on the Delavan innovation families that differentiate advanced spray engineering from standard spray-pattern selection.

SDX® Swirl-Air™ Cool-Cast® VCN™ Custom Solutions

Delavan® Innovation

Advanced Spray Technologies

Beyond standard nozzle patterns, Delavan has developed specialist spray technologies for spray drying, fine atomization, controlled cooling, precision coating and engineered process applications.

Featured Technology Delavan SDX spray drying nozzles OEM product collection

SDX® Spray Drying

Spray Drying

The SDX® family is Delavan’s dedicated spray-drying technology for atomizing liquid feeds into controlled droplets before drying. It is widely associated with powder production where droplet quality, repeatability and serviceability are critical.

Process Focus Powder production and spray drying

Typical Industries Dairy, food, chemical, pharmaceutical

Selection Factors Capacity, pressure, feed properties, droplet target

Technology Family Mini SDX®, Compact SDX®, SDX®, SDX® III, SDX® V

Featured Technology Delavan Swirl-Air spray nozzles OEM product collection

Swirl-Air™

Air-Assisted Atomisation

Swirl-Air™ combines liquid and air energy to produce fine atomization for demanding industrial processes. The technology is designed for applications where droplet size control and effective atomization are required without relying solely on very high liquid pressure.

Process Focus Fine atomization and controlled spraying

Typical Duties Cooling, coating, conditioning, process spraying

Operating Principle Combined pneumatic and hydraulic energy

Selection Factors Liquid flow, air pressure, droplet size, spray geometry

Featured Technology Delavan Cool-Cast nozzles OEM product collection

Cool-Cast®

Controlled Cooling

Cool-Cast® is a specialist Delavan nozzle technology intended for industrial cooling duties requiring consistent spray distribution and controlled droplet formation across the target area.

Process Focus Industrial cooling and thermal control

Spray Objective Consistent droplet distribution

Typical Duties Cooling, quenching, temperature control

Selection Factors Flow, pressure, coverage, droplet behavior

Featured Technology Delavan VCN Variable Coating Nozzle

VCN™ Variable Coating Nozzle

Precision Coating

VCN™ is designed for precision coating applications where spray width, atomizing air and liquid delivery may need to be controlled to suit different products, geometries or process conditions.

Process Focus Controlled coating and finishing

Typical Industries Food, pharmaceutical, engineering applications

Control Variables Spray width, atomizing air, liquid flow

Selection Factors Coating target, viscosity, line speed, spray width

Modular Technology

Dela-Fit™

A modular nozzle concept supporting practical configuration, replacement and maintenance across industrial spray applications.

Application Engineering

Special Purpose Nozzles

Delavan also develops specialist nozzle solutions for process duties that cannot be solved efficiently with standard spray geometries.

System Integration

Custom Spray Solutions

Application-specific engineering can extend beyond an individual nozzle to include mounting arrangements, manifolds and fluid-delivery concepts.

Engineering Beyond the Catalogue

Custom-Engineered Spray Solutions

Where a standard nozzle cannot meet the required spray geometry, droplet size, capacity, material or installation constraints, LGN can support technical identification and sourcing of Delavan application- specific solutions for OEM and process projects.

Spray Pattern & Coverage

Droplet Size Control

Material Selection

Flow & Pressure Matching

OEM Replacement

Process-Specific Design

Next: Series & Model Reference. Part 4 moves from technology families into Delavan series and model groups, helping customers identify the appropriate nozzle family from technical and application requirements.

OEM Reference

Delavan® Series & Model Reference

A practical reference to key Delavan industrial nozzle families. Series identification should always be confirmed against the actual operating duty, connection, capacity, pressure, spray angle, material and required spray characteristics.

Reference note: Delavan manufactures a very large number of nozzle configurations. The series below are intended as an OEM family reference rather than a substitute for final nozzle sizing or an exhaustive part-number catalogue.

Flat Spray Series

Delavan flat spray families cover fan-pattern applications including washing, coating, cooling, rinsing, blow-off and surface treatment.

Flat Spray

AC AD AN AQ AZ Blow-Off CAC DD DE DJ DQ LA

Solid Cone Series

Filled-cone spray families for process duties requiring liquid distribution throughout the complete spray footprint.

Solid Cone

BF BI BN BQ BT BY CJF CJM CM NBI NBN RBI

Air Atomising Series

Delavan air atomising families include external-mix, internal-mix and specialist designs for fine droplet production and controlled spray characteristics.

Air Atomising

Series / Model	Configuration	Reference Use
AIRO™	Air atomising family	Fine atomisation and industrial spray duties
AL – External Mix	External mix	Independent atomisation control for selected duties
AL 15	External mix	Flat-fan air atomising applications
AL 30	Internal mix	Solid-cone air atomising applications
AL 45	Internal mix	Controlled atomisation applications
AL 60	Internal mix	Wide flat-fan atomising applications
AL 75	Internal mix	Application-specific atomisation
AL 90	Internal mix	Application-specific atomisation
External Mix	External mix family	Liquid and air mixed outside the nozzle body
Internal Mix	Internal mix family	Liquid and air mixed inside the nozzle assembly
SN	Specialist air atomising	Fine spray and application-specific duties
VCN™	Variable Coating Nozzle	Precision coating with controllable spray parameters

SDX® Spray Drying Family

The main SDX® centrifugal-pressure nozzle range is built around Delavan’s single-inlet spiral swirl-chamber concept for spray-drying duties.

Spray Drying

Mini SDX® Compact spray-drying nozzle family

Compact SDX® Compact-format SDX® solution

SDX® Original core SDX® platform

SDX® III Advanced SDX® spray-drying design

SDX® V Current-generation SDX® technology

Kwik-Chek SDX® Accessories

Swirl-Air™ Configurations

Swirl-Air™ is available in several inlet and wear-resistant configurations for fine atomisation at relatively low pressures.

Swirl-Air™

Carbide Lined In Line Concentric In Line Concentric Right Angled Inlet Version Right Angle

Cool-Cast® Series

Patented Delavan cooling nozzle configurations for controlled droplet production and industrial cooling applications.

Cool-Cast®

Cool-Cast Block Cool-Cast Round

Cleaning in Place — Representative Models

Delavan’s CIP range extends from individual nozzles and static cleaning heads to rotating and geared cleaning equipment.

CIP

Model	Type	Spray Coverage Reference	Typical Role
CL7	Fixed multi-nozzle cleaning head	270°	Tank / vessel internal cleaning
KN9	Fixed multi-nozzle cleaning head	360°	Tank / vessel internal cleaning
CIP15	Fixed multi-nozzle cleaning head	230°–360° depending on version	Fine multi-jet vessel cleaning
DWN19	Fixed multi-nozzle cleaning head	360° ball pattern	Full vessel coverage
CIP21	Fixed multi-nozzle cleaning head	360° spherical coverage	Tank cleaning applications

Accessories & Supporting Components

Supporting hardware for installation, protection, adaptation and maintenance of Delavan spray systems.

Accessories

Adjustable Joint Ball Check Nozzle Ball Check Valve Bodies and Caps Filters and Swivels HNS and Adapters Pressure Release Valves (PRV) Y-Line Strainers

Need to Identify a Delavan Nozzle?

Send the Existing Reference or Operating Data

For replacement or new applications, identification is more reliable when the available Delavan model, part number and process conditions are reviewed together rather than selecting only by appearance.

Existing Part / Model Number

Flow Rate & Pressure

Spray Angle & Pattern

Connection & Material

Liquid / Product Properties

Application & Process Duty

Delavan® product names and trademarks are used for product identification and technical reference. Availability, exact configuration and current ordering codes should be verified for each inquiry.

Applications & Industries

Spray Solutions Across Process Industries

Delavan spray technologies are used across manufacturing and process industries where liquid distribution, atomization, cooling, cleaning, coating or gas conditioning directly affect process performance.

Food & Beverage

Spray solutions for hygienic processing, product coating, sanitation, washing, humidification and controlled liquid application.

Sanitation Coating Washing Humidification

Dairy & Spray Drying

High-value applications include atomization for milk powder, whey, nutritional products and other spray-dried ingredients.

SDX® Powder Production Atomization Dryer Optimization

Pharmaceutical

Precision nozzle technologies support coating, controlled atomization, spray drying and hygienic process applications.

Tablet Coating VCN™ Fine Atomization Spray Drying

Chemical & Process

Nozzles for reaction support, gas treatment, chemical injection, temperature control and demanding process environments.

Gas Cooling Injection Scrubbing Quenching

Steel & Metals

Industrial spray systems are used for cooling, quenching, descaling, dust control and process conditioning.

Cooling Quenching Descaling Dust Control

Power & Energy

Spray duties include gas conditioning, evaporative cooling, steam desuperheating and emissions-related process applications.

Gas Conditioning Desuperheating Cooling SNCR

Mining & Mineral Processing

Rugged spray solutions support dust suppression, washing, material conditioning and extraction-related process duties.

Dust Suppression Washing Conditioning Process Water

Automotive & Surface Treatment

Spray nozzles are used in pre-treatment, washing, coating, leak testing and controlled surface-processing systems.

Pre-Treatment Coating Washing Leak Testing

Water & Environmental

Spray technologies support water treatment, odor control, dust suppression, cooling and environmental process systems.

Odor Control Dust Suppression Water Treatment Cooling

Application-to-Technology Reference

The correct technology depends on process conditions; this matrix is a practical starting point for technical evaluation.

Application	Common Spray Requirement	Relevant Delavan Technology / Family
Spray Drying	Controlled atomization and powder particle formation	SDX® / Swirl-Air™
Precision Coating	Fine droplets and controllable spray width	VCN™ / Air Atomising
Tank & Vessel Cleaning	Internal surface coverage and repeatable cleaning	Cleaning in Place
Gas Cooling / Conditioning	Fine droplets and fast evaporation	Swirl-Air™ / Hollow Cone / Air Atomising
Industrial Cooling	Controlled distribution and thermal transfer	Cool-Cast® / Solid Cone / Flat Spray
Dust Suppression	Fine spray coverage with suitable droplet size	Swirl-Air™ / Hollow Cone / Solid Cone
Surface Washing	Impact and consistent fan coverage	Flat Spray
Humidification	Fine atomization and even distribution	Air Atomising / Swirl-Air™
Quenching	High liquid distribution and thermal control	Solid Cone / Cool-Cast®
Odor Control	Fine mist distribution	Swirl-Air™ / Air Atomising

Cooling & Quenching Heat removal, thermal conditioning and controlled cooling.

Cleaning & Washing CIP, tank cleaning, belt cleaning and surface washing.

Coating & Application Precision liquid deposition, finishing and product coating.

Atomization Fine droplet generation for process and product control.

Dust Suppression Airborne particulate control across industrial environments.

Gas Treatment Cooling, scrubbing, conditioning and emissions-related duties.

Humidification Controlled moisture addition for production environments.

Spray Drying Liquid-feed atomization for controlled powder production.

LGN Technical Support

Application First, Nozzle Second

The same nozzle family can perform very differently depending on pressure, flow, liquid properties, installation geometry and target conditions. LGN supports selection from the process requirement rather than choosing only by nozzle appearance or connection size.

Process Duty Review

Spray Pattern Selection

Droplet Size Requirement

Material Compatibility

Operating Pressure & Flow

OEM Replacement Matching

Next: Technical Nozzle Selection Guide. Part 6 will turn these applications into a practical engineering selection sequence covering spray pattern, flow, pressure, angle, droplet size, liquid properties, material and connection.

Technical Selection Guide

How to Select the Right Industrial Spray Nozzle

Nozzle selection should start with the process duty and required spray result. Flow, pressure, spray geometry, droplet size, liquid properties, materials and installation conditions must then be evaluated together.

Define the Process Duty

Identify what the spray must accomplish: washing, cooling, coating, atomizing, humidifying, dust suppression, gas conditioning, CIP or spray drying.

Start with the application

Select the Spray Pattern

Choose flat spray, hollow cone, solid cone or a specialist atomizing technology according to the required impact, coverage and distribution.

Pattern + coverage

Establish Flow & Pressure

Determine the required liquid capacity and the actual pressure available at the nozzle, accounting for system losses and operating range.

Capacity + operating point

Define Spray Angle

Match spray angle to target width, nozzle-to-target distance, overlap requirements and the physical geometry of the installation.

Angle + distance

Set Droplet Requirements

Fine droplets may improve evaporation or coating, while larger droplets can provide greater momentum and resist drift in other duties.

Atomization quality

Review Liquid Properties

Consider viscosity, density, temperature, solids content, abrasiveness and chemical characteristics at the real operating condition.

Fluid behavior

Choose Materials

Select nozzle and wear-part materials for corrosion resistance, erosion resistance, hygiene requirements, temperature and expected service life.

Compatibility + wear

Confirm Installation

Verify connection, orientation, available space, filtration, mounting arrangement, maintenance access and compatibility with the existing system.

Final configuration

Pressure Changes Nozzle Performance

For many hydraulic nozzles, flow varies approximately with the square root of pressure when the liquid and nozzle geometry remain unchanged.

Q₂ = Q₁ × √(P₂ / P₁) General hydraulic relationship — always verify against the specific Delavan capacity chart.

Increasing pressure generally increases flow and can produce finer droplets, but the exact effect on spray quality and angle depends on nozzle design and application.

Key Variables Interact

Higher Pressure Generally increases flow and atomization energy.

Higher Viscosity Can make atomization more difficult and alter spray quality.

Abrasive Solids Increase erosion risk and influence wear-material selection.

Spray Distance Changes real coverage and overlap at the target.

Droplet Size Affects evaporation, drift, coating and final process result.

Orifice Size Influences capacity and plugging sensitivity.

Spray Pattern Selection — Quick Reference

A starting guide only. Final selection must be checked against the relevant Delavan product data and actual operating conditions.

Spray Type	General Character	Common Selection Reason	Typical Duties
Flat Spray	Fan-shaped coverage	Linear coverage and surface impact	Washing, rinsing, coating, cooling
Hollow Cone	Liquid concentrated around cone perimeter	Fine atomization with circular coverage	Cooling, gas treatment, humidification
Solid Cone	Liquid distributed throughout cone	Full-area liquid distribution	Washing, quenching, cooling, dust control
Air Atomising	Liquid + compressed air	Fine droplets and controllable atomization	Coating, humidification, cooling
Swirl-Air™	Air-assisted specialist atomization	Fine droplets at comparatively low liquid pressure	Evaporative cooling, spray drying, process spraying
SDX®	Pressure atomization for spray drying	Controlled droplet / particle formation	Dairy, food, chemical and pharmaceutical powders
Cleaning in Place	Fixed or moving cleaning coverage	Internal vessel and equipment cleaning	Tanks, vessels, hygienic process equipment

For Technical Selection

Information to Send LGN

The more complete the process data, the more accurately the nozzle family, size, material and configuration can be evaluated.

Application / Process Duty

Required Flow Rate

Operating Pressure

Spray Angle / Coverage

Droplet Size Requirement

Liquid Viscosity & Density

Temperature & Solids Content

Chemical / Abrasive Properties

Material Requirement

Connection & Installation

Existing Delavan Part Number

Photos / Drawings if Available

For SDX® spray-drying applications: feed-stock density, viscosity, percentage solids, abrasiveness, operating temperature, required capacity, spray angle and target droplet / particle characteristics are particularly important. Delavan notes that feed properties directly influence finished particle size and that nozzle combinations are selected to balance droplet size, flow rate and spray angle.

OEM Identification & Support

Delavan® Nozzle Identification & Technical Sourcing

Whether you are replacing an existing Delavan nozzle or specifying a new spray application, LGN can review the available OEM reference and operating data to help identify the appropriate product family and configuration.

Replacement & New Applications

Send Us What You Have

A clear model or part number is the fastest starting point, but older, worn or unidentified nozzles can often require additional process information. Photos, drawings, dimensions and operating data help distinguish visually similar configurations and reduce selection errors.

Important: final ordering codes should be confirmed against the required material, capacity, spray angle, connection and current OEM configuration.

Useful Information for Identification

✓ Delavan part number or model marking

✓ Clear photos of nozzle and markings

✓ Existing drawing or datasheet

✓ Thread / connection type and size

✓ Required flow rate and operating pressure

✓ Spray pattern and spray angle

✓ Liquid / product and operating temperature

✓ Nozzle and wear-part material

✓ Application / process description

✓ Quantity and required delivery destination

Identify Review OEM number, images and existing configuration.

Verify Check operating data, spray duty, material and connection.

Match Determine the relevant Delavan family and configuration.

Source Confirm availability and commercial supply for the inquiry.

Frequently Asked Questions

Industrial Spray Nozzle FAQ

Can LGN identify a Delavan nozzle from a part number?

Yes. A complete OEM part or model number is the preferred starting point. Where the reference is incomplete, photos, dimensions and application data may be required before the configuration can be confirmed.

Can a nozzle be selected only from flow rate?

No. Flow is only one selection variable. Operating pressure, spray pattern, angle, droplet requirement, liquid properties, material and installation conditions can all affect the correct selection.

What information is needed for an air atomising nozzle?

Typical data include liquid flow, operating pressure, air supply, required spray pattern and angle, liquid properties, material requirement and the application objective.

What information is important for SDX® spray drying?

Feed material, capacity, pressure, density, viscosity, solids content, temperature, abrasiveness and the required droplet or finished-particle characteristics are important inputs for spray-dryer nozzle evaluation.

Can worn spray-dryer components affect spray quality?

Yes. Wear or damage to precision components can influence spray performance. Bodies, adaptors, sealing surfaces, threads, orifice discs and swirl chambers should all be inspected as part of proper maintenance.

How is a tank-cleaning nozzle selected?

Selection depends on vessel geometry, contamination level, required coverage, cleaning impact, available flow and recommended operating pressure. Higher pressure alone does not automatically mean better CIP performance.

Are custom spray solutions possible?

Yes. Delavan supports application-specific spray requirements, and specialized solutions may be evaluated when standard nozzle configurations do not meet the required process duty.

Can LGN support both replacement and new applications?

Yes. Existing OEM references can be reviewed for replacement inquiries, while new applications can be evaluated from process and spray-performance requirements.

LGN Group — Technical Inquiry

Need a Delavan Nozzle or Spray Technology?

Send us your Delavan reference, nozzle photo, drawing or process data. Our team can review the requirement for industrial spray nozzles, SDX® spray drying, Swirl-Air™, air atomising, CIP and application-specific spray solutions.

Send a Technical Inquiry Contact LGN Group

Delavan®, SDX®, Swirl-Air™, Cool-Cast®, Dela-Fit™ and VCN™ are referenced for product identification and technical information. Exact product configuration, current ordering code and availability should be confirmed for each inquiry.