Big flow filter element is a large-caliber deep-pleated filter consumable specially developed for front-end protection of large industrial ultrafiltration equipment, intercepting suspended solids, colloids and particulate pollutants in raw water to slow down membrane fouling and extend the overall service life of ultrafiltration modules. Every complete water treatment process equipped with ultrafiltration devices needs a matched industrial liquid filter to remove large granular impurities at the foremost pipeline, realizing graded filtration protection and stabilizing the continuous operation efficiency of ultrafiltration units; our full range of big flow filtration products covers High-Flow Filter Cartridges: The Pinnacle of Performance in Industrial Filtration, High-Flow Filter Cartridges: Redefining Industrial Water Purification, High Flow Filter Cartridge: Maximizing Efficiency in Industrial Liquid Treatment and Premium High Flow Filter Cartridges – Engineered for Harsh Working Conditions, which can match ultrafiltration systems in desalination, chemical wastewater reuse, pure water preparation and circulating water treatment industries. With enlarged outer diameter and lengthened structural design, the big flow filter element obtains ultra-large effective filtration area, realizing high liquid handling volume under low operating differential pressure and providing stable qualified influent water for subsequent ultrafiltration deep purification. This paper comprehensively elaborates the structural composition, water filtration working mechanism, standardized technical indicators, strict whole-process quality management system and diversified industrial application scenarios of big flow filter element. Global water treatment contractors, factory procurement departments and overseas filter distributors are allowed to select standard big flow filter elements or customize material, precision and dimensional parameters, so as to cut the long-term maintenance cost and membrane replacement expense of enterprise ultrafiltration production lines.
Big Flow Filter Element for Industrial Ultrafiltration Pretreatment Systems
Big flow filter element is a large-caliber deep-pleated filter consumable specially developed for front-end protection of large industrial ultrafiltration equipment, intercepting suspended solids, colloids and particulate pollutants in raw water to slow down membrane fouling and extend the overall service life of ultrafiltration modules. Every complete water treatment process equipped with ultrafiltration devices needs a matched industrial liquid filter to remove large granular impurities at the foremost pipeline, realizing graded filtration protection and stabilizing the continuous operation efficiency of ultrafiltration units; our full range of big flow filtration products covers High-Flow Filter Cartridges: The Pinnacle of Performance in Industrial Filtration, High-Flow Filter Cartridges: Redefining Industrial Water Purification, High Flow Filter Cartridge: Maximizing Efficiency in Industrial Liquid Treatment and Premium High Flow Filter Cartridges – Engineered for Harsh Working Conditions, which can match ultrafiltration systems in desalination, chemical wastewater reuse, pure water preparation and circulating water treatment industries. With enlarged outer diameter and lengthened structural design, the big flow filter element obtains ultra-large effective filtration area, realizing high liquid handling volume under low operating differential pressure and providing stable qualified influent water for subsequent ultrafiltration deep purification. This paper comprehensively elaborates the structural composition, water filtration working mechanism, standardized technical indicators, strict whole-process quality management system and diversified industrial application scenarios of big flow filter element. Global water treatment contractors, factory procurement departments and overseas filter distributors are allowed to select standard big flow filter elements or customize material, precision and dimensional parameters, so as to cut the long-term maintenance cost and membrane replacement expense of enterprise ultrafiltration production lines.
Big flow filter element is the most critical security filter component at the inlet of industrial ultrafiltration equipment, widely used to replace a large number of small-size folded filter cartridges and simplify the construction of ultrafiltration pretreatment filter tank. Conventional small filter elements need dozens of pieces to meet the water demand of large ultrafiltration equipment, while one single big flow filter element can bear a large water flow load, effectively reducing the quantity of filter housings, pipeline valves and later replacement workload. Raw water firstly removes gravel, rust slag and fibrous dirt through the upstream liquid filter, then enters the big flow filter element for precision interception, avoiding hard substances scratching the ultrafiltration membrane surface and fine pollutants blocking the membrane pores.
We supply serialized big flow filter products to meet different working conditions of ultrafiltration pretreatment projects: adopt High-Flow Filter Cartridges: The Pinnacle of Performance in Industrial Filtration for high-purity water ultrafiltration pretreatment in the pharmaceutical and electronic industries; apply High-Flow Filter Cartridges: Redefining Industrial Water Purification for municipal reclaimed water ultrafiltration supporting filtration; select High Flow Filter Cartridge: Maximizing Efficiency in Industrial Liquid Treatment for petrochemical wastewater ultrafiltration front protection; configure Premium High Flow Filter Cartridges – Engineered for Harsh Working Conditions for high-turbidity raw water and corrosive water quality environments of ultrafiltration stations.
The complete structure of the big flow filter element consists of multi-gradient pleated filter media, integral injection molding PP support framework, upper and lower sealing end caps, high-performance rubber sealing rings and external protective cage. The mainstream raw material is food-grade polypropylene, with optional glass fiber and PTFE materials for special corrosive liquids. The optional filtration precision ranges from 1μm to 50μm, and the common interface types are 226 fin type and flat opening, which are compatible with most international standard big flow filter housings on the market. All finished big flow filter elements must pass bubble point test and hydraulic pressure resistance test before delivery to ensure zero leakage during long-term matching operation with ultrafiltration equipment. Our factory supports spot delivery of standard specifications and customized development of non-standard sizes and precision for special ultrafiltration projects.
The liquid filter, big flow filter element and ultrafiltration main machine form three-level step-by-step purification: coarse filtration → big flow precision filtration → ultrafiltration deep separation. The big flow filter element relies on physical interception, inertial deposition and surface adsorption of the folded filter layer to trap harmful impurities in the water body.
Treated by the front liquid filter, raw water flows into the filter housing and permeates from the outer wall of the big flow filter element to the central inner tube. Suspended solids, colloids and tiny organic pollutants are trapped inside the folded layer, and the filtered clean water converges into the central pipeline and flows into the ultrafiltration module. The optimized deep pleated structure keeps low system pressure drop under large water flow, will not cause water supply shortage during the continuous water intake of ultrafiltration equipment.
Impurities will continuously accumulate in the filter layer as the filtration proceeds, making the inlet and outlet pressure difference of the filter tank rise gradually. When the pressure difference reaches 0.25 MPa, users need to replace the big flow filter element in time. Blocked filter elements will increase the operating load of the water pump, reduce the water inflow of ultrafiltration, and even worsen the pollution degree of ultrafiltration membranes.
Ultrafiltration membranes need regular gas-water mixed backwashing to remove surface pollutants. The clean water filtered by the big flow filter element can be used as backwashing water source, cooperating with compressed air to complete the membrane cleaning work, effectively relieve membrane fouling and reduce the frequency of chemical cleaning of ultrafiltration equipment.
Common length specifications: 20in / 40in / 60in customizable
Outer diameter: 152 mm
Single element rated flow: 75 ~ 115 m³/h
Optional filtration precision: 1μm, 3μm, 5μm, 10μm, 20μm, 50μm
Connection form: 226 fin / flat end cap
Filter media & support skeleton: Polypropylene (standard), glass fiber, PTFE (customized)
Sealing material: EPDM rubber, silicone rubber, fluororubber
Long-term working temperature: ≤60℃
Maximum working pressure: 1.0 MPa
Recommended replacement differential pressure: 0.25 MPa
Applicable pH range: 1 ~ 13, excellent acid and alkali resistance
Industrial liquid filter, big flow stainless steel filter housing, differential pressure gauge, pipeline fixing accessories
As a professional manufacturer integrating big flow filter element production and ultrafiltration supporting filter solutions, all production procedures strictly abide by ISO9001 international quality system standards. Export-oriented products can provide complete material certificates and inspection reports for project acceptance and customs clearance of overseas customers.
Raw material incoming inspection: Filter membrane particles, skeleton raw materials and sealing rubber rings are sampled for tensile resistance, corrosion resistance and folding uniformity test to screen out unqualified raw materials at the source.
Production process inspection: QC inspect the folding tightness, hot-melt bonding strength and straightness of each big flow filter element one by one to prevent internal liquid channeling of finished products.
Factory delivery inspection: 100% air tightness and burst pressure test for each batch of products to adapt to 24-hour uninterrupted operation of industrial ultrafiltration systems.
Packaging & delivery: Independent vacuum moisture-proof packaging + hard carton outer protection. Standard big flow filter elements are delivered within 3–7 working days, and customized products require 12–20 working days for production and delivery.
Under conventional clean circulating water conditions, the service life of the big flow filter element is 1.5 ~ 3 months. We provide permanent technical selection guidance and remote operation troubleshooting services for all customers using matched filter + ultrafiltration systems.
Ultrafiltration & RO system pretreatment: Front security filtration for large pure water and ultrapure water production lines
Seawater and brackish water desalination projects: Raw water pre-filtering to protect desalination ultrafiltration membrane components
Petrochemical and chemical industry: Pretreatment filtration for wastewater entering tubular ultrafiltration equipment
Municipal reclaimed water reuse: Mass water filtration for centralized municipal ultrafiltration stations
Power plant circulating water system: Supporting filtration for workshop large-scale ultrafiltration devices
Food and beverage industry: Process water pretreatment for food-grade ultra-clean water ultrafiltration units
Q1: What core protection functions does the big flow filter element bring to industrial ultrafiltration equipment?
A: It efficiently intercepts colloids, suspended solids and tiny particles in raw water, reduces the pollutant load on ultrafiltration membranes, slows down membrane fouling speed, extends the service life of ultrafiltration modules and cuts the maintenance frequency of ultrafiltration equipment.
Q2: Can I customize the precision, length and material of big flow filter elements according to my ultrafiltration system?
A: Yes. Our technical team can adjust all structural parameters of filter elements combined with your on-site water quality, system flow and existing filter housing size to realize perfect matching with your ultrafiltration equipment.
Q3: What is the normal replacement cycle of standard big flow filter elements?
A: The replacement cycle is about 1.5–3 months under clean water quality conditions; if the raw water turbidity is high and impurities are abundant, the pressure difference rises rapidly, and replacement needs to be completed within one month.
Q4: Why configure an industrial liquid filter before the big flow filter element for ultrafiltration pretreatment?
A: The front liquid filter intercepts large foreign matters such as gravel and rust blocks to avoid hard particles scratching the folded filter surface of big flow elements, slow down the pollution speed of filter elements and reduce the overall operation cost of the ultrafiltration system.
Q5: What factors will cause premature blockage of big flow filter elements?
A: Excessive impurity content in inlet water, failure of front liquid filter, long-term overload water flow operation and excessively small selected filtration precision will lead to rapid differential pressure rise and early blockage of filter elements.
Q6: Can multiple big flow filter elements be installed in parallel to supply water for large ultrafiltration units?
A: Parallel installation inside a single large-flow filter housing is fully supported. Multiple filter elements work simultaneously to provide stable large-flow qualified water for large industrial ultrafiltration equipment, which is widely applied in various large centralized water treatment projects.
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