Plastic Spray Nozzle
What is Plastic Spray Nozzle
Plastic nozzles can be good options for certain applications due to their lightweight nature, corrosion resistance, and relatively low cost. They are often employed in industries where chemical compatibility, ease of manufacturing, or reduced weight is a priority.
Why Choose Us
Our Factory
Yuyao Bangfu Hardware and Plastic Products Co., Ltd. began production and manufacturing in 2002, It is located in Zhangting Industrial Park, Yuyao City, Ningbo. Covering an area of 6000 square meters, currently employing over 100 people.
Rich Experience
We have our own design department, and designers have rich experience in collaborating with domestic and foreign clients. Every year, many new products are born, all of which have high quality.
Custom Service
The company supports customers to process and customize according to their drawings. The company does not sell customized products and keeps them confidential to ensure the uniqueness of our products.
24H Online Service
We provide 24 hours online service, can let your doubts to solve in time. Fast and efficient service and to ensure customer satisfaction, so that you have no worries after sale.
Advantages of Plastic Nozzles
Cost Savings
Plastic is cheaper to manufacture than metal alloys. These material savings translate into plastic nozzle prices 30% to 50% lower than steel or aluminum models with similar specifications. Their affordable cost makes them attractive for applications requiring large quantities of nozzles.
Corrosion Resistance
Most plastic compounds demonstrate high corrosion resistance. Unlike metals, sprayed fluids or gaseous media do not cause material degradation in plastics. Even acidic or basic solutions with pH ranges under 2 or over 12 do not affect popular plastics like nylon, polypropylene or PVDF. Their immunity to corrosion suits them for demanding chemical environments.
Customization Options
Plastics allow molding intricate, customized nozzle designs impossible with machined metals. Complex flow passages tailored to user needs optimize spray performance. Color coding by plastic type enables easier visual inspections. Other custom options like anti-drip valve integration suit specific applications.
Spray Nozzles: Stainless Steel vs. Plastic
Choosing the proper nozzle for an application is not always easy. There are many variables to consider and evaluate, one of which is the nozzle's material. The intrinsic characteristics of the material can extend or shorten the operating life of the nozzle but also positively or negatively affect its performance.
What environmental and non-environmental factors we have to consider when choosing the most suitable material for a spray nozzle?
The most suitable material for a nozzle is one of the most crucial decisions since its operating life depends upon it.
There are several factors to influence or shorten the nozzle operating life -sometimes more than one at the same time- the most important being:
Temperature of the environment and of the sprayed liquid
The temperature at which the nozzle will operate is of primary importance. Each material has a melting point determined by different temperatures. It is crucial to consider both the temperature of the sprayed liquid and of the environment in which the nozzle is operating.
Corrosion caused by the environment and by the sprayed liquid
Each material, including plastic and steel, has different corrosion resistance characteristics. Therefore, it is essential to study both the level of corrosion of the environment in which the nozzle is inserted and the corrosive characteristics of the sprayed liquid.
Cost
Often, choosing the less expensive option hides additional long-term costs. An inexpensive nozzle with physical and chemical characteristics incompatible with its application requires rapid replacement, resulting in higher costs in the long run.
Which are the differences between plastic and stainless steel for spray nozzles?
Plastic and stainless steel have different physical and chemical characteristics, which can determine the final choice.
Stainless steel
Stainless steel is an alloy of iron and carbon, with other elements such as chromium, nickel, molybdenum, vanadium, titanium. The most popular steels in our sector range from 303 to 316L.
Thanks to its greater hardness and resistance to erosion and to chemical attacks, 316L stainless steel is used for special applications. The various types of steel have different degrees of weldability, from 303 – which is poorly weldable – up to 304 and 316L, which allow excellent quality and tightness welds and are therefore used in the food industry.
Resistance of stainless steel to high temperatures
Steel is a very resistant material to high temperatures, up to 500 °. If your environment or the sprayed liquid is extremely hot, stainless steel is a great choice.
Steel resistance to corrosion
Steel can not be counted among the most corrosion-resistant materials. If you plan to use particularly aggressive chemicals, plastic might be a good choice.
Let's see in detail the corrosion resistance of the different types of steel:
Aisi 303 stainless steel
Good resistance: Atmospheric exposure, food substances, organic chemicals.
Low resistance: Chlorides, reducing acids and over 800° C
Aisi 316 stainless steel
Good resistance: Atmosphere, great number of salts, organic acids, foods
Low resistance: Solutions of reducing acids temperatures over 500° C
Aisi 316l stainless steel
Good resistance: Atmosphere, great number of salts, organic acids, foods, salt water
Low resistance: Solutions of reducing acids temperatures over 500° C
Aisi 420 | 416 stainless steel
Good resistance Drinkable water, steam, gasoline, oil, alcohol, ammonia.
Thermoplastic materials
These are polymers that have high melting points and can be processed by injection molding. The most used for making nozzles are polyvinyl chloride (PVC), polypropylene (PP), polyvinylidene fluoride (PVDF), each one with specific characteristics of temperature and resistance to chemicals. The choice of the most appropriate material is usually made based on the compatible with the materials of other parts of his plant, such as pipes and valves.
Thermoplastic materials resistance to high temperatures
Thermoplastic's resistance to high temperatures is low. As the temperature rises, the plastic will melt and deform. We therefore recommend, if your application involves high temperatures, to orient yourself on steel nozzles.
Thermoplastic materials resistance to corrosion
Chemical resistance and corrosion resistance are among the major advantages offered by plastics over metals. By choosing the right polymer family, it is possible to cope with the most aggressive environmental conditions without the need for additional protection such as surface treatments, painting or cathodic protection.
Selecting the Correct Material for Spray Nozzles: 8 Modern Options
When spraying pesticides or other chemicals on agricultural land, one of the most important decisions a farmer can make is the nozzle selection. There are a variety of nozzles available, but depending on the material sprayed, one could be more efficient and effective than another.
The type of nozzle used affects both the amount of material applied to a particular area and how uniform the overall spray is, the amount of coverage, and the drift that could occur due to the nozzle. Every nozzle is unique and has a specific application technique that works best for a given substance.
While the type and shape of the nozzle can affect the effectiveness and application of the chemical or substance, the material of the nozzle can also play a significant role in how well the nozzle holds up over multiple uses and a variety of sprays. Choosing the correct material for spray nozzles is something every farmer should consider when purchasing a new nozzle.
Types of Materials Used for Spray Nozzles
There are many different materials used for spray nozzles. From stainless steel to plastic, there's a variety of options to make spraying fields the most efficient process it can be. The correct material can save a farmer both time and money. Below are some of the most commonly used materials for spray nozzles in the agricultural industry.
● Aluminum
Aluminum nozzles are great for various gardening, lawn, and turf applications. However, since this is a softer metal, they aren't the best for overall durability. They can wear a bit more quickly than other nozzles made of poly materials, stainless steel, or ceramic. Still, aluminum spray nozzles can be a dependable option.
● Brass
Brass spray nozzles are generally robust and weatherproof. This material used to dominate before plastic became available because of its affordability and looks. Brass nozzles over 10 years old still hold up well as long as they're taken care of. It's resistant to corrosion and can withstand temperature extremes. However, they still wear a bit more easily than ceramic or stainless steel.
● Hardened Stainless Steel
Spray nozzles made with hardened stainless steel are the most common for industrial sprayers. Hardened stainless steel is the most economically sound material for more extensive application needs. Even though they're more expensive, they last through multiple sprays per year for generations. Plus, they generate a more uniform pattern for spraying over a longer time. If a farmer cannot afford hardened stainless steel nozzles, choose inserts with a nylon outer nozzle.
● Stainless Steel
Stainless steel is a bit different from hardened stainless steel. Stainless steel has a lower carbon content, so it cannot go through the same heat treatment process as hardened steel. This makes it slightly weaker than hardened, but it is still a great investment for spray nozzles because it doesn't rust or corrode. If spraying at a higher rate and volume, stainless steel is the way to go. Stainless steel is a popular option among farmers.
● Polypropylene
Polypropylene is a type of plastic. It's a more affordable option than most other spray nozzles, but that doesn't take away from its durability. For the most part, plastic nozzles can hold up just as well as stainless steel. The process to make the nozzles is cheaper, and that makes the material more readily available. Another benefit is that these nozzles can be color-coded, which can be a time-saver when in the field. Farmers can check that the color matches the boom.
● Combination Ceramic and Stainless Steel
Ceramic nozzles are another great investment for farmers who spray larger regions or amounts of product. Farmers who spray more frequently at higher pressures will want to get a combination ceramic nozzle with a stainless steel insert. These have a higher resistance and will last for years. They're not used as frequently because they're higher priced and have a stigma that they're fragile. However, if they're cleaned properly, they will last a long time.
● Cast Iron
Cast iron nozzles aren't as popular as other spray nozzles, but they still do the job. Cast iron is most widely known for its appearance in cooking appliances, so that means that it can withstand higher temperatures and won't break under pressure. However, it isn't a material that is resistant to corrosion. Any scrapes or scratches in the nozzle can spread across the entire surface in no time. Cast iron takes a bit more care and caution than other materials.
● Nickel-Based Alloys
Nickel-based materials are another option for spray nozzles. They're more resistant to corrosion compared to cast iron, brass, and some stainless steel. Nickel alloys have an extremely high temperature tolerance, which can withstand the hottest of days or spray products. Additionally, they have increased durability and reduce spatter when a pesticide or chemical is applied to a field, making the flow rate more consistent.
Factors to Spray Nozzle Consider When Choosing the Material
Before choosing a material for a spray nozzle, it's important to consider the application process and substance being applied. Some sprays are harsher than others and can cause corrosion in no time, which wastes money spent on the incorrect spray nozzle material.
It can be challenging to know which material to choose for a spray nozzle, which is why there are various factors to consider when selecting a spray nozzle material. Here are some of those:
Frequency of Use
Spraying less than 100 acres a few times every year would only require a nozzle made out of a soft metal material. This low usage won't put on wear and tear, and the nozzle can last for years. However, spraying more frequently requires materials that can hold up to the amount of spraying at high pressures. The materials best for high-frequency applications include polypropylene, stainless steel, and ceramic.
Cost Savings
Budget is a consideration when choosing the correct material for spray nozzles. A nozzle made with ceramic or stainless steel may cost more upfront, but it may reduce overall costs also, since it won't have to be replaced as often. Plastic, brass, and cast iron are a bit more affordable, but they could wear down faster.
Temperature
Each type of nozzle material may soften if the temperature begins to rise. For farmers working in higher temperatures, the best materials include brass, stainless steel, and ceramic. Each of these can handle higher temperatures.
Abrasiveness
Farmers widely use spray nozzles to spread chemicals and pesticides. The material should be able to withstand the chemical. Ceramics and carbides are highly resistant to abrasion. Materials on the lower end of abrasion resistance include brass, aluminum, and steel.
Corrosion Resistance
Plastics are an excellent choice for corrosion resistance. However, they have a low temperature rating. The most resistant materials for corrosion are refractory metals and precious metals. Ceramics are also highly resistant to corrosion unless they're in a high-pH environment.
Cleaning Requirements
Cleaning nozzles can reduce wear and tear, meaning it will last longer. Most of the materials for spray nozzles need to be cleaned with clean water. Water contaminated with fine particles can cause extra friction. After each use, be sure to care for the nozzles.
How Long do Spray Nozzles Time?
Worn spray nozzles can have a significant impact on the performance of your sprayer and ultimately the crop protection chemistry it is used to apply. In the graphic below we have calculated the effect on pressure and droplet size resulting from the use of nozzles exhibiting 10% wear. Modern sprayers utilize flow rate controllers to maintain a desired application volume. To do this the flow rate controller monitors the liquid flow rate out of the boom and matches it with the ground speed of the sprayer to maintain your desired application volume. As nozzles wear the orifices increase in size and allow for more liquid volume to pass through them. When using worn spray nozzles, the flow rate controller will compensate for the increase in flow rate by reducing spray system pressure.
Reducing spray system pressure can have a resulting impact on spray nozzle performance by influencing droplet size, coverage and spray pattern distribution. When spraying at lower pressures worn spray nozzles can result in pressure reductions below the minimum pressure for a given nozzle. We can also experience changes in droplet size resulting from pressure reductions in worn spray nozzles (Table1). These increases in droplet size can have a negative impact on spray coverage. If the pressure reduction is significant it is possible to see reductions in spray angle, also known as pattern collapse that can negatively impact spray coverage and application distribution across your fields.
But how do you know when spray nozzles are worn and should be changed? How can you avoid the performance issues related to worn spray nozzles? And how long should we expect spray nozzles to last?
Flow rate in gallons per minute (GPM) at 40 psi is used to measure the % wear of a spray nozzle. By collecting the flow through nozzles at 40 psi, we can determine the level of nozzle wear by comparing the captured volume versus the manufacture stated flow volume for that spray nozzle. The application industry recommends changing nozzles when they reach 10% wear, or an increase in flow rate of 10% greater than the manufacture stated flow rate.
To answer the question of how long spray nozzles last, Pentair Hypro supplied 3D nozzles to applicators in order to produce field wear and tear. For one spraying season these nozzles were used to apply herbicides and fungicides to 8, 10, 27, 30, 38, 40 and 44,000 acres to produce nozzle sets with varying degrees of wear.
Nozzles were then retrieved and their respective flow rates were collected using a bench top spray table with pressure set to 40 psi. A handheld Spot On calibrator was used to collect and measure flow rate. Flow rates in gallons per minute were recorded and used to calculate % wear by number of acres sprayed.
Nozzles used to apply 8,000 acres of crop protection chemistry showed no signs of wear present. Significant signs of nozzle wear were not detected until nozzles had applied 30,000 acres of crop protection chemistry, when 5% wear was recorded. The 10% wear threshold was crossed with nozzles that applied 40,000 acres. Nozzles seeing 40,000 acres of use exhibited a 12% increase in flow rate compared to a 3D100-04 nozzle that is new .
Coefficient of Variation (CV) is a metric used to quantify the uniformity of a spray pattern. A higher percent CV number indicates lower uniformity of spray droplet distribution. Areas under a spray boom will receive a higher dose, while other areas will receive a lower dose. Similar to golf, a lower percent CV number is the goal. For agricultural spray nozzles the accepted threshold to remain under is 7%.
The same spray nozzles that were used for the flow rate and wear testing were also tested to determine their uniformity of spray pattern distribution. Nozzles used on 44,000 acres exhibited an 80% increase in the spray pattern CV compared to the same nozzle when new. When new Pentair Hypro 3D-04 nozzles displayed a CV of 3.1% at 40 psi, however, after 40,000 acres of use these same nozzles displayed a CV of 7.5% at 40 psi. This CV after 40,000 acres of usage crosses over the desired threshold of 7% CV for agricultural spray nozzles. Increasing levels of CV will reduce the accuracy and precision of an application and may have potential if left unchecked to allow pest control escapes to occur.
From this field and lab testing we have determined that 40,000 should be used as an expected lifespan for agricultural spray nozzles made of polyacetal. Once you reach 40,000 acres of use it is recommended to check spray nozzles for wear and condition. Check at 5,000 acre intervals until flow rate increases to 10% above manufacturer stated flow rate at 40 psi.
Fall/early winter will be the best time to check your sprayer for worn or damaged nozzles. This will give you the winter months to acquire new nozzles if needed. With all the supply chain disruptions and higher than usual demand we have seen this year, I could foresee some backorder issues in the spring when demand for new nozzles and other sprayer parts is highest. Checking the condition of your nozzles this fall will help you get parts orders in early so your sprayer is in prime condition when the spring spraying season arrives.
Our Factory
A garden tool manufacturing factory that integrates professional research and development, production, and sales. Yuyao Bangfu Hardware and Plastic Products Co., Ltd. began production and manufacturing in 2002, and was officially established for production and operation in 2006. It is located in Zhangting Industrial Park, Yuyao City, Ningbo. Covering an area of 6000 square meters, currently employing over 100 people.
FAQ
As one of the leading plastic spray nozzle manufacturers and suppliers in China, we warmly welcome you to wholesale cheap plastic spray nozzle from our factory. All custom made products are with high quality and competitive price.
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