Security Filter For Circulating Water Reuse

Product Overview

The Security Filter for Circulating Water Reuse is a precision filtration device designed to remove fine particles, suspended solids, and residual impurities from circulating or recycled water. It provides reliable protection for downstream systems such as ultrafiltration (UF) and reverse osmosis (RO), preventing membrane fouling and extending system lifespan. The unit is compact, durable, and easy to maintain, making it essential in advanced water reuse processes.

Working Principle

Under pressure, the feed water flows into the filter housing and passes through the filter cartridges. Impurities are trapped on the outer surface of the cartridges, while clean water is collected from the inner core and discharged through the outlet. When the differential pressure reaches the preset limit, cartridges should be replaced or cleaned to restore filtration efficiency.

Main Components

• Filter housing (SUS304 / SUS316L)

• Cartridge assembly (melt-blown or pleated type)

• Inlet/outlet flanges and support base

• Pressure gauge and vent valve

• Sealing gaskets and quick-clamp design

Features

• High filtration precision and stable effluent quality

• Compact design and small footprint

• Easy cartridge replacement and low maintenance cost

• Modular configuration for multiple flow capacities

• Corrosion-resistant, pressure-resistant structure

• Ideal pre-protection for UF/RO and water reuse systems

Applications

• Industrial circulating and cooling water systems

• Pretreatment for UF/RO filtration units

• Chemical, electronic, and food-grade process water

• Advanced wastewater and reclaimed water systems

Optional Configuration

• Full SUS316L anti-corrosion structure

• Quick-opening clamp design

• Differential pressure monitoring and alarm system

• Skid-mounted modular combination

• Activated carbon or micro-porous cartridge options

     Jiangsu Sanhe Environmental Protection Group Co., Ltd., formerly Jiangsu Sanhe Environmental Protection Equipment Co., Ltd., is located on the scenic shores of Lake Taihu. It is a renowned manufacturer and developer of modern environmental protection and water treatment equipment in China. It comprises several subsidiaries, including Jiangsu Sanhe Environmental Engineering Co., Ltd. and Yixing Sanhe Environmental Protection Design Institute Co., Ltd. The parent company has a registered capital of 100.2 million yuan, a building area of ​​over 20,000 square meters, and a staff of 52 technicians. The company boasts not only strong environmental protection equipment production and R&D capabilities, but also a highly qualified team with over 30 years of experience in environmental protection equipment production and service, a passion for environmental protection, and a commitment to integrity.

     After nearly 30 years of continuous effort, our innovative development of new products, technologies, materials, and processes, along with our expertise, has been widely adopted in the industry. We have developed advanced continuous-flow activated carbon filters and differential fully automatic backwash filters specifically for reclaimed water reuse and zero-discharge projects. We have also independently developed high-efficiency activated carbon suitable for flow-through activated carbon towers, resolving challenges in China due to poor adsorption performance, short service life, saturation, and high operating costs, hindering widespread adoption and ensuring long-term effective use of activated carbon.

    ​Since its establishment, Jiangsu Sanhe Environmental Protection Group Co., Ltd. has provided qualified products and services to nearly a thousand renowned domestic and international manufacturers, including municipal sewage treatment plants, the machinery and chemical industry, CNPC, Sinopec, Baosteel Group, Jiangxi Copper Group, Dongfeng Nissan, Dongfeng Motor Corporation, commercial passenger vehicle companies, Hangzhou Luxgen, Great Wall Motors, Dongfeng Peugeot Citroen Automobile, Dongfeng Yangzijiang Bus, CSR Corporation, and the Tarim Oilfield, earning a strong reputation. We are grateful to all our friends who have given us opportunities and helped us grow!

     We firmly believe in down-to-earth and steady development; we advocate scientific innovation and unremitting pursuit; and we promote energy-saving, low-carbon, and green living. We provide our customers with ingenious products and services and strive to establish our company as a leading modern enterprise in China's environmental protection production, research, and development sectors.