I’ve decided to give you more surprises! So all materials enjoy a 15% discount.
00
News and Information
Consult now
Need help? We’re here to help!
Phone/Fax
+86-631-5684177
Service hotline (same number on WeChat)
+86-15588424700
Contact email
whzhpc.business@whzhpc.com
Contact Address
No. 55 Dalian Road, High-Tech Industrial Development Zone, Weihai City, Shandong Province
Common types of filters
Release time:
2021-07-21
Source:
Filters are indispensable components in agricultural irrigation systems. The impurities in water can be broadly categorized into physical impurities, chemical impurities, and biological organic impurities. Their practical application in fields—especially in large-scale operations—is highly essential. However, in small-scale drip irrigation systems covering just a few mu (about 0.3–0.6 acres), we often see that many farmers have not yet installed filters directly. Many farmers claim that since their drip irrigation tapes are replaced once a year, they don’t experience clogging. Yet, prolonged use without proper filtration can significantly affect the main pipelines as well. So, what kinds of filtration equipment are currently available both domestically and internationally? We’ll briefly introduce them next.
Let me explain to you the common types of filters.
Filters are indispensable components in agricultural irrigation systems. The impurities in water can be broadly categorized into physical impurities, chemical impurities, and biological organic impurities. Their practical application in fields—especially in large-scale operations—is highly essential. However, in small-scale drip irrigation systems covering just a few mu (about 0.3–0.6 acres), we often see that many farmers have not yet installed filters directly. Many farmers claim that since their drip irrigation tapes are replaced once a year, they don't experience clogging. Yet, prolonged use without proper filtration can significantly affect the main pipelines as well. So, what kinds of filtration equipment are currently available both domestically and internationally? Let’s take a brief look at them next.
I. Gravel Filter
Sand-and-gravel filters are commonly used in large-scale cultivated farmlands that rely on surface water for irrigation, particularly in drip irrigation systems. Such filters typically consist of two or more filter tanks connected in parallel via outlet piping to form a filtration station. The filters can remove organic impurities such as algae, moss, certain bacteria, and other organisms. When using lake water for irrigation, sand filters are the best choice, as they provide excellent filtration performance over large areas.
II. Centrifugal Filter
A centrifugal filter operates on the principle of centrifugal force, causing water to spin and separating sand from the water. When properly selected, this system maintains a constant flow rate and exhibits excellent sand-removal performance. It is primarily used in irrigation water with high sand content, and this type of filter is widely adopted in the northwest region of China.
Generally, gravel filters are used as the primary filter, followed by mesh filters as the secondary filter, thereby extending the cleaning cycle of the sand filter.
III. Grid Filter
Mesh filters are effective for treating water containing inorganic impurities such as silt and sand. However, they generally have limited effectiveness when dealing with water rich in organic impurities. Unlike gravel filters, mesh filters cannot store large amounts of organic impurities and are typically used as a secondary filtration stage.
IV. Cascade Filter
A stacked filter is a type of filter that lies between gravel filters and mesh filters. It consists of numerous thin, circular layers stacked on top of one another; when tightened, these layers form a cylindrical filtering element. Water flows through the spaces between the stacked layers, while impurities remain trapped in the filter chamber. Stacked filters are currently widely used across the country and come in manual, semi-automatic, and fully automatic cleaning versions. Their filtration capacity ranges from 20 to 400 mesh.
V. Y-Strainer
For water quality containing sand and other debris, these impurities can damage valves, pump impellers, and other components of drip irrigation systems. Various Y-type filters are commonly used to remove these impurities; they are typically installed downstream in the filtration system as a secondary filter, or they can also be placed at the upstream end of field branch lines to prevent clogging of capillary tubes.
Alright, that’s all for today’s explanation. If you have any other questions, don’t forget to reach out to our company. Wishing you all a happy life!
Other updates
Complete Guide to Directional Control Valves: Types, Selection 2026
This 2026 comprehensive guide covers all key information about directional control valves, from basic definition and working principles to practical selection and maintenance tips. Drawing on 15+ years of manufacturing and testing experience at Zhonghao Pneumatic, we share actionable insights, answer common user questions, and help you avoid costly mistakes when choosing directional control valves for your systems.
Directional Control Valves: Complete Guide to Types, Selection & Maintenance 2026
This comprehensive guide for engineers, procurement teams and maintenance technicians covers everything you need to know about directional control valves in 2026. Backed by hands-on testing data from Zhonghao Pneumatic, we explain definitions, classifications, selection steps, troubleshooting and answer the most common industry questions to help you make the right choice.
Directional Control Valves 2026 Guide: Types, Selection, Maintenance Tips
This 2026 comprehensive guide draws on decades of hands-on experience from Zhonghao Pneumatic to cover all key aspects of directional control valves, from core functions and common classifications to step-by-step selection and routine maintenance. It helps engineers, procurement teams and maintenance staff pick the right valve for their application and cut long-term operating costs.
Directional Control Valves: Complete Guide, Types & Selection 2026 | Zhonghao Pneumatic
This complete 2026 guide for beginners and industry professionals covers all key information about directional control valves, from basic definitions to advanced selection and troubleshooting. Drawing on real-world testing and 20+ years of experience from Zhonghao Pneumatic’s engineering team, this guide helps you avoid common mistakes and choose the right valve for your application.
Directional Control Valves: Complete 2026 Guide, Types & Selection Tips | Zhonghao Pneumatic
This 2026 expert guide shares everything you need to know about directional control valves, from basic definition to practical selection and maintenance tips. We draw on over 15 years of practical experience supplying pneumatic and hydraulic components to bring you actionable, data-backed insights that help both system designers and maintenance technicians make informed decisions.
2026 Complete Guide: Choosing Reliable Pressure Regulators for Pneumatic & Hydraulic Systems
This 2026 professional guide covers core knowledge of pressure regulators, from basic definitions and classification to step-by-step selection and routine maintenance. Drawing on decades of manufacturing and field testing experience from Zhonghao Pneumatic, it provides actionable insights for engineers and procurement teams to cut operational costs and improve system stability.
2026 Complete Guide to Pressure Regulating Valves: Selection, Uses & Maintenance
This expert guide draws from 18 years of hands-on manufacturing and testing experience at Zhonghao Pneumatic to cover core functions, common types, step-by-step selection, and maintenance of pressure regulating valves. We also answer the most common questions from engineers and buyers to help you make the right purchase decision.
2026 Complete Guide to Pressure Regulators: Types, Selection & Maintenance
This guide is built on hands-on testing and decades of supply experience from Zhonghao Pneumatic, a professional supplier of pneumatic and hydraulic components. It covers core definitions, types, step-by-step selection, common issues, and maintenance tips for pressure regulators, helping engineers and procurement teams pick the right product and reduce long-term operational costs.
Contact now
Need help? We’re here to help!
Phone/Fax
+86-631-5684177
Service hotline (same number on WeChat)
+8615588424700
+8613561811500
Contact email
whzhpc.business@whzhpc.com
Contact Address
No. 55 Dalian Road, High-Tech Industrial Development Zone, Weihai City, Shandong Province
If you have any questions about our products or need assistance, please feel free to contact us.
Enter your information, and our team will contact you shortly.