Lobe pump with steam jacket: Steam or hot water can be injected into the pump body or pump cover to keep the working chamber constant temperature. Prevent the material solidifying resulting in damage to the seal when starting up. Lobe pump with steam jacket,Rotary lobe pumps with steam jacket,Rotor pump with steam jacket NINGBO DURREX PUMPS CO.,LTD , https://www.durrexlobepump.com
The second dilution of pesticides, also known as the two-step preparation method, is a widely used technique in pesticide formulation. This method involves diluting the pesticide in two stages, which helps to ensure better solubility and uniform distribution, especially for water-insoluble wettable powders (WPs) or small quantities of active ingredients. By using this approach, the pesticide can be more accurately measured, leading to improved efficacy and reduced risk of phytotoxicity. Additionally, it minimizes the exposure risk to concentrated formulations, making the application process safer for both users and the environment.
There are several ways to perform the second dilution, depending on the equipment available:
A. Using a medical saline bottle with clear volume markings is an effective way to prepare a stock solution. Place the required amount of pesticide into the bottle, add a suitable quantity of water, shake well to create a concentrated mother liquid, and then measure the necessary amount for the final dilution.
B. When using a knapsack sprayer, you can directly mix the pesticide in the tank. Start by adding a small amount of water to the sprayer, then add the required amount of pesticide, shake thoroughly, and finally top up the tank with water to reach the desired volume.
C. For large-scale applications with a motorized sprayer, a larger container such as a barrel or drum can be used for the first dilution. After preparing the concentrated solution, transfer it to the sprayer’s tank for the second dilution and thorough mixing.
It's important to note that accurate measurement of the water used in the mother solution is crucial for maintaining the quality of the diluted pesticide. Any arbitrary changes in the concentration can significantly affect the effectiveness of the treatment and may even lead to crop damage. Always follow the recommended guidelines and avoid making adjustments without proper knowledge.
By following these steps, farmers and applicators can ensure safe, efficient, and effective pesticide use.