A hydraulic valve is a device used to control the flow and pressure of hydraulic fluid in a hydraulic system. It is typically made up of a valve body, which contains the necessary ports and passages for fluid flow, and a valve spool or poppet, which is responsible for regulating the flow of fluid.
Hydraulic valves can be classified into various types based on their function and design. Some common types include:
1. Directional control valves: These valves control the direction of fluid flow in a hydraulic system. They typically have multiple ports and can be used to control the movement of hydraulic cylinders or motors.
2. Pressure control valves: These valves regulate the pressure of the hydraulic fluid in a system. They can be used to maintain a specific pressure level or limit the maximum pressure.
3. Flow control valves: These valves control the rate of fluid flow in a hydraulic system. They can be used to adjust the speed of hydraulic cylinders or control the flow to different actuators.
4. Check valves: These valves allow fluid flow in one direction while preventing it from flowing back in the opposite direction. They are commonly used to maintain pressure in hydraulic systems or prevent backflow.
Hydraulic valves are essential components in hydraulic systems, as they enable precise control and efficient operation. They are commonly used in various industries, including manufacturing, construction, agriculture, and automotive.
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Application and Packaging of Activated Alumina Balls 
The activated alumina balls produced by Zhengda Water Supply Material Factory in Jiajinkou, Gongyi City, are widely used in various industrial applications. These high-quality granules are especially effective for defluoridation in drinking water treatment systems, ensuring safe and clean water for communities. In addition, they serve as an efficient deacidification regenerant for transformer oil, helping to maintain the performance and longevity of electrical equipment.
In oxygen production plants, particularly in steel manufacturing, activated alumina acts as a carrier and support material for oxygen generation processes. It is also commonly used as a desiccant in industries such as textiles, petrochemicals, and more, where moisture control is essential for product quality and process efficiency.
The activated alumina balls come in a range of standard specifications, including 1-2mm, 2-4mm, 3-5mm, 4-6mm, and 5-8mm. Custom sizes can be manufactured based on specific customer requirements. This flexibility ensures that the product can be tailored to suit different application needs.
For packaging, the activated alumina balls are packed in durable woven bags with a plastic inner lining to protect against moisture and contamination. Each bag has a net weight of 25 kg, with a tolerance of ±0.5 kg, ensuring consistent and reliable delivery for industrial use.
Whether you're looking for a solution for water purification, oil regeneration, or industrial drying, activated alumina balls from Zhengda Water Supply Material Factory offer a versatile and effective option. Their high adsorption capacity, long service life, and ease of handling make them a preferred choice across multiple sectors.