Embark on a comprehensive exploration of the Teejet Orifice Chart, an indispensable tool for maximizing spray efficiency. This detailed guide unravels the intricacies of nozzle types, orifice sizes, spray patterns, flow rates, pressure, chemical compatibility, maintenance, and troubleshooting. Prepare to elevate your spraying operations with a profound understanding of Teejet orifices.
Delve into the nuances of nozzle selection, understanding the impact of orifice size on spray patterns and coverage. Discover the flow rate and pressure dynamics associated with different orifices, ensuring optimal performance for your specific spraying needs. Explore the compatibility of various chemicals with Teejet orifices, ensuring safe and effective application.
Contents
Nozzle Types and Orifice Sizes

Teejet nozzles are available in various types, each designed for specific applications and flow rates. The orifice size of a nozzle is a crucial factor that determines the flow rate and spray pattern.
The relationship between nozzle type and orifice size is critical. Different nozzle types require specific orifice sizes to achieve optimal performance. Choosing the appropriate orifice size ensures efficient spraying and accurate application of chemicals.
Table of Nozzle Types and Orifice Sizes, Teejet Orifice Chart
The following table lists different Teejet nozzle types and their corresponding orifice sizes:
| Nozzle Type | Orifice Sizes |
|---|---|
| Flat Fan | 0.02 – 0.06 inches |
| Hollow Cone | 0.03 – 0.08 inches |
| Air Induction | 0.04 – 0.12 inches |
| FloodJet | 0.06 – 0.15 inches |
| TwinJet | 0.02 – 0.06 inches |
Spray Patterns and Coverage
Teejet orifices produce a variety of spray patterns to suit different application requirements. The spray pattern is determined by the shape of the orifice and the angle at which the liquid is discharged.
The most common spray patterns are:
- Flat fan: A flat, wide spray pattern that is ideal for broadcast applications.
- Round fan: A round, cone-shaped spray pattern that is used for spot spraying.
- Full cone: A cone-shaped spray pattern that is used for overall coverage.
- Hollow cone: A cone-shaped spray pattern with a hollow center that is used for penetrating dense foliage.
The orifice size also affects the spray coverage and droplet size. Smaller orifices produce smaller droplets and a narrower spray pattern, while larger orifices produce larger droplets and a wider spray pattern.
Orifice Size and Spray Coverage
The orifice size is a critical factor in determining the spray coverage and droplet size. Smaller orifices produce smaller droplets and a narrower spray pattern, while larger orifices produce larger droplets and a wider spray pattern.
The following table shows the relationship between orifice size and spray coverage:
| Orifice Size | Spray Coverage |
|---|---|
| 0.02 inches | Narrow spray pattern |
| 0.04 inches | Medium spray pattern |
| 0.06 inches | Wide spray pattern |
Flow Rates and Pressure: Teejet Orifice Chart

The flow rate through a Teejet orifice is determined by the orifice size and the pressure applied. The larger the orifice, the higher the flow rate. The higher the pressure, the higher the flow rate.
The following table shows the flow rates and pressures associated with different Teejet orifices.
| Orifice Size | Flow Rate (gpm) | Pressure (psi) |
|---|---|---|
| 0.02 | 0.1 | 10 |
| 0.03 | 0.2 | 15 |
| 0.04 | 0.3 | 20 |
| 0.05 | 0.4 | 25 |
| 0.06 | 0.5 | 30 |
As you can see from the table, the flow rate increases as the orifice size increases. The flow rate also increases as the pressure increases.
Chemical Compatibility

Teejet orifices are manufactured using various materials to ensure compatibility with a wide range of chemicals. The chemical compatibility of orifices is crucial to prevent damage, corrosion, or reduced performance.
The following table provides a general overview of the compatibility of different chemicals with specific orifice materials:
Orifice Materials and Chemical Compatibility
| Orifice Material | Compatible Chemicals |
|---|---|
| Brass | Most pesticides, herbicides, and fertilizers |
| Stainless Steel | Highly corrosive chemicals, such as acids and alkalis |
| Ceramic | Abrasive chemicals, such as sand or grit |
| Polypropylene | Non-corrosive chemicals, such as water or mild detergents |
Maintenance and Troubleshooting

To ensure optimal performance and longevity of Teejet orifices, proper maintenance and troubleshooting are crucial. By adhering to the guidelines and resolving common issues, you can maintain the efficiency and accuracy of your spraying operations.
Orifice Maintenance
Regular maintenance is essential to prevent clogging, wear, and damage to orifices. Here are some key maintenance practices:
- Clean orifices regularly: Remove any debris, dirt, or chemical buildup using a soft brush or compressed air.
- Inspect orifices for wear: Check for any signs of erosion, pitting, or damage that may affect flow rate or spray pattern.
- Replace worn orifices: If an orifice shows significant wear or damage, it should be replaced to maintain optimal performance.
- Store orifices properly: Keep orifices in a clean and dry place to prevent contamination or damage.
Troubleshooting Common Problems
Despite proper maintenance, certain issues may arise with Teejet orifices. Here are some common problems and their potential solutions:
- Clogged orifices: This can be caused by debris, dirt, or chemical buildup. Clean the orifices as described above.
- Incorrect flow rate: Ensure that the correct orifice size is installed for the desired flow rate. Check for any leaks or blockages in the system.
- Uneven spray pattern: This may indicate a damaged or worn orifice. Replace the orifice and check the spray pattern again.
- Leaking orifices: Inspect the orifice for any cracks or damage. Replace the orifice if necessary.
Last Point

In conclusion, the Teejet Orifice Chart serves as a cornerstone for optimizing spray performance, empowering users to make informed decisions that maximize efficiency and minimize waste. By leveraging the insights provided in this comprehensive guide, you can harness the full potential of Teejet orifices, ensuring precision, consistency, and effectiveness in your spraying operations.
Essential FAQs
What factors influence the selection of an orifice size?
The selection of an orifice size depends on the desired spray pattern, coverage, flow rate, and pressure requirements for the specific spraying application.
How does orifice size affect spray coverage?
Larger orifice sizes produce wider spray patterns with larger droplets, while smaller orifice sizes result in narrower spray patterns with smaller droplets.
What maintenance is recommended for Teejet orifices?
Regular cleaning and inspection of Teejet orifices are essential to prevent clogging and ensure optimal performance. Replace worn or damaged orifices promptly.