Horizontal Backwash Filter
Overview
The Horizontal Backwash Filter is a specialized filtration system designed for industrial and commercial fluid handling applications. Its horizontal configuration allows for space-efficient installation in pipeline systems, distinguishing it from vertical filter designs. These filters are widely adopted in water treatment plants, district heating/cooling systems, and industrial process lines where continuous operation with minimal maintenance is required. The automatic backwash function eliminates the need for manual cleaning, reducing downtime.
Structure and Working Principle
The filter consists of a horizontal pressure vessel containing a filtration screen (stainless steel wedge wire or perforated plate), inlet/outlet ports, and a backwash mechanism. During normal operation, fluid passes through the screen which captures particulates. When differential pressure reaches a set point (typically 0.5-1 bar), the system initiates backwashing. A motorized or hydraulic mechanism reverses flow through a localized section of the screen, dislodging accumulated debris which is discharged through a drain port. This process occurs sequentially across the entire filter surface.
Key Features
1. Continuous Operation: Backwashing occurs without interrupting main flow, ensuring uninterrupted system performance. 2. Energy Efficiency: Requires only 1-3% of total flow for backwashing, with minimal pressure loss (typically <0.3 bar when clean). 3. Customizable Filtration: Screens are available in various micron ratings (commonly 50-500μ) and materials to match application requirements.
Application Areas
Water Treatment: Pre-filtration for reverse osmosis systems, intake filtration for industrial water. HVAC Systems: Protection of heat exchangers and chillers in district energy systems. Industrial Processes: Coolant filtration in metalworking, process water in food/beverage production. Marine Systems: Seawater intake filtration for desalination or cooling systems.
Maintenance and Precautions
Routine inspections should check for screen integrity (monthly), seal condition (quarterly), and actuator performance (if automated). Always isolate pressure before maintenance. Critical precautions include ensuring the backwash drain line has adequate capacity (minimum 2x backwash flow rate) and verifying compatibility between filter materials and fluid chemistry (pH, chlorine content, etc.). In freezing climates, winterization procedures are required.
B2B Procurement Guide
Key specifications to confirm: 1) Maximum working pressure/temperature (common: 10bar/120°C), 2) Connection standards (flange type/size), 3) Filtration grade required. For large projects, request performance test reports (typically EN 12255 or AWWA standards). Lead times vary from 4-12 weeks for custom configurations. Consider total cost of ownership including energy consumption for backwashing and expected screen replacement intervals (usually 3-5 years).
Related Manufacturers
- 主营：过滤器、管夹阀、铸铁阀门、直通式反冲洗过滤器、不锈钢袋、衬氟球阀、乙丙胶管、高压铸造y、kf真空接头、不锈钢衬氟、气动管件阀、衬氟止回阀、矿山专用阀、衬胶隔膜阀、不锈钢过滤、毛发收集器、衬氟截止阀、不锈钢毛发、橡胶连接管、气动夹管阀、内全衬四氟、钢衬四氟蝶阀、直角法兰连接、衬氟对夹蝶阀、碳钢法兰蝶阀、气动对夹蝶阀
- 主营：换热机组、板式换热器、容积式换热器、除污器、水处理设备、分集水器、定压补水机组、恒压供水机组、无负压供水机组、冷凝水回收装置、全程水处理器、过滤设备
- 主营：玻璃钢罐、树脂罐、过滤器、反冲洗过滤器、软水器、石英砂过滤罐、离子交换柱
- 主营：混水机组、分集水器、板式换热机组、全自动反冲洗过滤器、多介质过滤器、浮动床过滤器、混凝反应器、弃流控制器井、复合流过滤器、自清洗过滤器、管刷在线清洗装置、自动排气定压补水装置、全自动加药装置、真空脱气机、水力模块、容积式换热器、凝结水回收装置、定期排污扩容器、海绵铁除氧器、强磁水处理器、容水机组、全程水处理器
- 主营：除砂器、集水器、软化水、除污器、反冲洗除污器、气压罐、硅磷晶、水阻垢、脱气机、软水器、分水器、紫外线、供水罐、过滤器、定压补水装置、井水除砂器、硅磷晶罐、真空脱气机、全程水处理器、旁通水处理器、电子除垢仪、蓝式过滤器、毛发过滤器、隔膜式气压罐、混水罐
- 主营：旋流除砂器、分集水器、电子除垢仪、旋流除污器、反冲洗过滤器、除污器、角通除污器、立式除污器、螺旋除污器、真空引水罐、自清洗过滤器、全程水处理器、物化全程水处理器、硅磷晶罐、真空脱气机、隔膜气压罐、定压补水机组、消防稳压罐、篮式过滤器、膨胀罐、旁流水处理器、全自动软水器、智能阻垢机、供水压力罐、定压补水真空脱气机组
- 主营：分集水器、自清洗过滤器、旁通过滤器、反冲洗过滤器、除污器、螺旋除污器、微泡排气除污器、旁流水处理器、真空引水罐、冷凝水回收装置、隔膜气压水罐、定压补水装置、全程水处理器、真空脱气机、电子水处理器、定压补水真空脱气机组、全自动软水器、自动加药装置、全自动过滤器、篮式过滤器、软水器、水处理器、变频恒压供水设备、旋流除砂器
- 主营：集水器、地源热泵、集分水器、除污器、地暖分水器、机房供水分水器
- 主营：分集水器、定压补水装置、过滤器、除污器、全自动反冲洗过滤器、水箱、全自动软水器、真空引流罐、隔膜气压罐、膨胀罐、真空脱气机、全程水处理器、自动加药装置、自清洗过滤器、刷式过滤器、真空排气定压补水装置、常压定压补水装置、电子除垢仪、离心过滤器、混水罐
- 主营：水处理设备、补水排气设备、软水设备、除污器、反冲洗过滤器、过滤设备、真空脱气机、综合水处理器、冷凝器清洗装置、混合器、旋流除砂器、石英砂过滤器、分集水器、冷凝水回收器、凝结水回收装置、全滤式水处理器、旁流水处理器
- 主营：换热机组、板式换热器、容积式换热器、卧式反冲洗除污器、软化水设备、定压补水装置、分集水器、全程水处理、污水换热器、旋流除砂器、冷凝水回收装置、全自动软水器、全程综合水处理器、板式换热机组、供水设备
- 主营：定压补水装置、全自动软水器、隔膜气压罐、反冲洗除污器、扩容除污器、立式直通除污器、螺旋排气除污器、真空脱气机、冷凝水回收装置、全程水处理器、旁流水处理器、旋流除砂器、篮式过滤器、排污降温罐、自动加药装置、自清洗过滤器、分集水器、自动定压真空脱气机组、高频电子水处理器、真空引水罐、物化全程水处理器、电化学水处理器、变频恒压供水设备、无负压稳流罐
- 主营：锚索切断器、扭矩放大器、圆环链液压剪、直通除污器、顶板离层仪、煤矿井下用聚酯纤维增强塑料网、顶板动态仪、单体支柱测压仪、矿用锚杆索测力计、钻孔应力计、煤矿井下用聚丙烯双向拉伸防护网、实验室鄂式破碎机、锤式破碎机、皮带取样机、双辊破碎机、便携式煤炭取样器、实验室圆盘粉碎机、矿用管道挂钩、矿用电缆挂钩、采煤机用电缆夹板、液压支架防冻液、风动链锯、矿用充填袋、水封式防爆器
- 主营：油缸拆缸机、矿灯充电柜、机载临时支护装置、矿用反冲洗过滤器、矿用平板车、皮带纠偏装置、岩心切割机、自动隔爆装置、液压起道机、钢轨锯轨机、钢轨打磨机、铁路捣固镐、缓冲条、防溢裙板、气相色谱仪、氢气发生器、燃气分析仪、钻孔应力计、矿用卡绳器、顶板离层仪、电缆挂钩、铁路道岔、托辊、扭矩放大器、固定式矿车
- 主营：epe滤芯、滤油车、储气罐、脱气除污器、过滤芯、滤芯精、贺德克、力士乐、冷却器、707滤芯、油滤芯、泵吸油、滤油机、专用油、聚丙烯、管道气、润滑油、气液气、卫生气、钢丝网、滤芯带、小车机、旋风气、水分离、净化器、水滤芯