Industrial Security Filter Applications
Industrial security filters are used when a process needs additional particle control before a sensitive downstream stage. The application depends on what remains in the liquid after upstream treatment and what the next process needs to protect.
Security Filters in Water Treatment
Water treatment is a common application for security filtration, particularly where additional particle protection is required before RO or UF membranes. In RO systems, security filtration before RO can provide an additional barrier against residual particles reaching the membrane stage.
YUBO's DLBF Series is designed for high-flow security filtration in applications including wastewater treatment, cooling-water reuse, and high-purity water. SSBF is also available for industrial water applications requiring stainless-steel construction.
The security filter can serve as a downstream protection stage rather than replacing the main pretreatment system.
Security Filters in Seawater Treatment
Seawater treatment can involve changing levels of suspended solids and marine contaminants. In desalination systems, additional filtration may be required before membrane treatment to reduce the particulate load reaching sensitive equipment.
YUBO's DLBF and SSBF ranges are listed for seawater desalination. DLBF is suited to higher-flow requirements, while SSBF provides a stainless-steel configuration for demanding liquid filtration environments.

Security Filtration in Chemical Processing and Refining
Chemical and refining processes often use several filtration stages. A security filtration stage can be considered after bulk solids separation when a liquid still requires additional particle control before downstream equipment or processing.
YUBO's DLBF and SSBF provide security filtration options for compatible chemical solutions.
Security Filters in Food & Beverage
Food and beverage filtration must address particle control as well as hygienic processing requirements. Applications include beverages, bottled water and drinking water where residual particles need to be controlled before the next process or treatment stage.
YUBO's SYBF Series is positioned as a food and pharmaceutical-grade security filter for beverages, bottled water, drinking water, beer and wine. SSBF is also listed for beverage and bottled-water applications requiring stainless-steel construction.

Application Example: Food Processing Water Treatment
At a food processing plant in China, unstable deep-well water contained solids ranging from trace amounts to 2%, with a treatment capacity of 300 m³/h. YUBO designed a two-stage system: a YGDF self-cleaning filter removed particles larger than 25 μm, followed by an SSBF security filter for finer filtration.
The treated water achieved 0.113 NTU turbidity, with initial and one-month samples meeting the specified requirements in third-party laboratory testing.
This project shows how security filtration can work as a downstream stage after higher-capacity filtration.
Case Detail: food processing water filtration project
Security Filters in Power Generation
Power generation facilities use filtration in cooling water, hydraulic systems and other auxiliary processes. Security filtration can be considered where an additional fine particle-control stage is required.
YUBO also supplies filtration solutions for cooling-water and auxiliary systems in power generation.
YUBO Security Filter Solutions
YUBO's security filter range includes:
• DLBF — high-flow security filtration for wastewater treatment, cooling-water reuse, seawater desalination and chemical solution preparation.
• SYBF — food and pharmaceutical-grade security filtration for beverages, bottled water, drinking water and related applications.
• SSBF — stainless-steel security filtration for seawater desalination, industrial water, chemical solutions, beverages and high-purity water.
The appropriate configuration depends on the fluid, flow requirement, filtration target, operating conditions and downstream process. YUBO also provides customized filtration equipment with pressure testing, flow distribution testing, material qualification, durability evaluation and safety validation.
FAQ
1. Where are industrial security filters used?
Common applications include water treatment, seawater desalination, chemical processing, food and beverage, high-purity water and selected power-generation systems.
2. Can a security filter be used before RO?
Yes. It can provide an additional filtration stage before RO when further control of residual particles is required. The configuration depends on the upstream treatment and RO system.
3. Which YUBO security filter is suitable for food and beverage applications?
SYBF is positioned for food and pharmaceutical-grade applications. SSBF is also listed for beverages, bottled water and related industrial applications.



