Big Flow Filter Element for Industrial Ultrafiltration Pretreatment

Big Flow Filter Element for Industrial Ultrafiltration Pretreatment

Big Flow Filter Element is a large diameter pleated filter consumable installed on the front of industrial ultrafiltration membrane modules. This liquid filter delivers excellent dirt holding capacity and stable low pressure drop under continuous high-volume raw water operation. It can be matched with PARKER High-flow water filter cartridge and HFU640UY1000J high flow filter cartridge to build multi-stage prefiltration systems for raw water treatment skids. It offers reliable prefiltration solutions for municipal, power, chemical, food and beverage water reuse projects globally.

Product Introduction

Big Flow Filter Element is a large-diameter pleated filter cartridge specially developed for the pretreatment section of ultrafiltration water treatment equipment. As the core consumable component of the whole filtration system, it is mounted upstream of UF membrane modules. Its core task is to intercept suspended solids, fine silt, pipeline rust, colloids and granular contaminants in raw water before the fluid enters ultrafiltration membranes. By removing particulate pollutants in advance, it greatly reduces membrane fouling risk, extends the service life of expensive UF membrane elements, and cuts down the frequency of high-cost chemical cleaning cycles for the whole water treatment system.

Different from conventional small-diameter filter cartridges, Big Flow Filter Element adopts wide-diameter pleated construction, which significantly expands the effective filtration surface area of each single filter element. To satisfy the same total system flow demand, much fewer filter elements need to be fitted inside filter housings. This structural advantage reduces spare parts inventory pressure, accelerates on-site filter replacement operations, and lowers long-term operating costs for water treatment plant operators and system integrators. When designing complete water treatment skids, engineers can match this Big Flow Filter Element with Parker MFNP050-40N Fulflo Mega-Flow Large Diameter Filter and Replace Pall Ultipleat High-Flow Cartridge for Ultrafiltration to construct gradient multi-stage raw water prefiltration.

This big flow filter element adopts glue-free thermal fusion pleating technology. No adhesive is added inside the filter medium, eliminating the risk of glue dissolution and secondary water contamination caused by long-term high-speed water scouring. End caps and internal and external support cores are integrally molded polypropylene, maintaining stable structural integrity under frequent pressure fluctuations and continuous large-volume water flow. The all-polypropylene material delivers outstanding chemical compatibility and can tolerate most weak acid, weak alkali and neutral aqueous solutions. Whether users need to replace aging filter cartridges in existing ultrafiltration production lines or purchase spare filter consumables for newly commissioned UF equipment, Big Flow Filter Element can provide stable and repeatable pretreatment filtration performance for various industrial water treatment projects.

Working Principle

Big Flow Filter Element operates based on the surface-depth composite pleated filtration principle. Raw water flows into the filter housing and travels radially inward starting from the outer pleated surface of the filter cartridge. Larger solid particles, rust fragments and sediment are trapped on the outer pleated layer. Fine colloids and tiny suspended particles penetrate into layered polypropylene fiber medium and get intercepted within dense fiber gaps.

With optimized wide-area pleat layout, captured pollutants spread evenly across the whole filter medium surface instead of accumulating only on the outer layer. This design slows the rising speed of inlet-outlet differential pressure, maximizes dirt holding capacity and extends the usable operating cycle of each filter cartridge. When the pressure difference between filter inlet and outlet reaches the preset threshold value, the filter medium becomes saturated with trapped contaminants, and field operators need to install new Big Flow Filter Element.

This filter element forms the primary protective barrier for ultrafiltration membranes. Without this upstream prefiltration, raw water loaded with solid particles will directly impact UF membrane surfaces. Contaminant deposits block membrane pores and flow channels, accelerate fouling, increase chemical cleaning frequency, and may even cause irreversible permanent damage to ultrafiltration membranes. When installed in series with PFTM11UEPFA high flow filter cartridge for multi-stage combined filtration, the long-term running stability of the ultrafiltration system can be greatly enhanced. It should be noted that Big Flow Filter Element can only remove solid particulate impurities and cannot filter dissolved ions, so it only serves as mechanical prefiltration before ultrafiltration membranes.

Technical Parameters

Quality Control

Every batch of Big Flow Filter Element undergoes full-process production inspection and finished-product performance testing before shipment. Incoming raw material inspection is carried out for polypropylene filter media, support cores and end caps to guarantee batch-to-batch consistency. During manufacturing, sampling inspections cover pleating uniformity, thermal bonding strength and sealing performance of end caps.

Finished product tests include bubble point integrity test, cyclic pressure impulse test and water flow pressure drop detection. Defective filter cartridges with medium cracks, poor sealing or loose structures will be fully screened out. The glue-free thermal bonding craft removes the risk of adhesive leaching that may contaminate process water. The all-PP material design also avoids metal shedding risk in filtration, making it suitable for sanitary water treatment scenarios.

Products comply with strict industrial filtration quality management standards. Each filter cartridge is individually packaged to avoid dust and particle contamination during storage and transportation. Complete technical datasheets are supplied for engineering design, BOM creation and quotation reference. After installation and before system startup, on-site inspection should be performed to confirm filter housing interface matching and sealing integrity.

Application Fields

Big Flow Filter Element is widely adopted as pretreatment filter element for ultrafiltration water treatment systems, and it also applies to a wide range of other industrial liquid filtration scenarios.

Industrial ultrafiltration system pretreatment: Capture sediment, iron oxide scale and suspended particles, protect UF membrane elements, reduce membrane chemical cleaning frequency. Suitable for raw water purification and reclaimed water reuse projects.

Power plant water treatment: Pre-filtration for boiler makeup water and condensate water, removing pipeline rust and suspended particulate pollutants.

Food and beverage industry: Raw water pretreatment for drinking water and beverage production to remove granular impurities.

Chemical industry: Process water filtration and circulating cooling water pretreatment for chemical production lines.

Municipal water supply and reclaimed water reuse: Large-flow raw water prefiltration for municipal water plants and wastewater recycling projects.

Pharmaceutical and cosmetic purified water preparation: Sanitary grade prefiltration for water production equipment.

System designers can configure multi-stage gradient filtration according to raw water turbidity and pollutant composition of each individual project to achieve better overall filtration efficiency.

FAQ

Q1: What is the main function of Big Flow Filter Element in ultrafiltration equipment?

A: It serves as the upstream pretreatment protective filter for ultrafiltration systems. It intercepts suspended solids, silt and granular contaminants inside raw water, reduces pollutant load on UF membranes, slows membrane fouling, lowers chemical cleaning frequency and extends the service life of ultrafiltration membrane elements.

Q2: What factors influence the service life of Big Flow Filter Element?

A: There is no fixed time-based service life. Service cycle depends on raw water turbidity, contaminant concentration and real operating flow rate. It is recommended to replace the cartridge when inlet-outlet differential pressure reaches 0.35 MPa.

Q3: Can I clean and reuse clogged Big Flow Filter Element?

A: It is a disposable pleated filter cartridge. Once fiber gaps are saturated with trapped contaminants, backwashing cannot fully restore original filtration performance. Reuse after cleaning brings particle leakage risks, direct replacement is recommended.

Q4: What filter housings match Big Flow Filter Element?

A: It fits 40-inch or 60-inch big flow filter housings with bayonet locking interface. Before ordering, verify housing interface dimensions, internal cavity space and pressure bearing rating to avoid installation mismatch.

Q5: Is Big Flow Filter Element suitable for high temperature working conditions?

A: The polypropylene material has a maximum operating temperature of 65℃. It is not recommended for continuous operation above this temperature. Contact our technical team for high-temperature working condition assessment.

Q6: How many Big Flow Filter Element do I need for my ultrafiltration system?

A: The required quantity is calculated based on total system flow rate, single-cartridge rated flow and raw water quality parameters. Calculate according to the technical datasheet and reserve reasonable surplus to cope with raw water quality fluctuations.

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