Parker MFNP050-40N Fulflo Mega-Flow Large Diameter Pleated Filter Cartridge
Parker MFNP050-40N is a core model of the Fulflo Mega-Flow series large diameter pleated filter cartridge, featuring 5 micron nominal precision and 40-inch standard length, specially designed for high-flow industrial liquid pre-filtration and membrane system protection. This 6-inch oversized diameter filter element delivers ultra-large filtration area, low initial pressure drop and excellent dirt-holding capacity, perfectly adapting to 24/7 continuous heavy-duty water treatment operations. Many industrial EPC contractors and system integrators widely match Parker MFNP050-40N-ITT high flow filter cartridge and PFTM102UEPFA RO pre-filter cartridge to build complete multi-stage pretreatment filtration systems, effectively improving raw water quality and extending the service life of downstream membrane equipment.

Product Description
Parker MFNP050-40N is a standard general-purpose high-flow pleated filter cartridge under the Parker Fulflo Mega-Flow product line, widely used in industrial raw water purification, process liquid filtration and reverse osmosis security pre-filtration. Adopting a classic 6-inch (152mm) large outer diameter and 40-inch (1016mm) standard length design, it boasts an effective filtration area of 5.6 square meters, far exceeding the filtration capacity of traditional 2.5-inch small-size filter cartridges. A single MFNP050-40N filter element can replace dozens of conventional filter cartridges, significantly reducing the number of built-in elements of the filter housing, simplifying equipment layout, and saving project installation space and initial investment cost.
This filter cartridge adopts full polypropylene structural configuration, including multi-layer gradient pleated polypropylene filter media, reinforced polypropylene inner and outer support cages, and glass fiber reinforced polypropylene end caps. It adopts professional thermal fusion hot-melt welding process throughout the whole process without any adhesive bonding, completely avoiding fiber shedding, glue dissolution and secondary water pollution risks. Equipped with standard Buna-N (nitrile) O-ring sealing and an integrated molded lifting handle, it supports tool-free quick disassembly and installation by a single person, greatly reducing on-site maintenance time and labor costs.
Different from the ITT customized end-cap version, Parker MFNP050-40N is a universal base model, perfectly compatible with all standard Parker Mega-Flow series filter housings without any equipment modification. With a stable 5-micron nominal filtration accuracy, it can efficiently intercept fine sediment, suspended solids, colloidal particles and other impurities in water. The maximum continuous operating temperature reaches 82°C, with excellent chemical compatibility, adapting to most neutral aqueous solutions, weak acid and weak alkali industrial working environments. It is the preferred standard consumable for long-term stable operation of industrial water treatment systems.
Working Principle
Parker MFNP050-40N high flow pleated filter cartridge follows the mature outside-in depth filtration principle. Untreated raw water and industrial process liquid uniformly enter the filter housing, fully contact the outer pleated surface of the filter cartridge under system pressure, and complete graded interception of impurities through multi-layer gradient filter media.
Large-particle sediment and coarse suspended flocs are trapped on the outer coarse filter layer, while fine colloids and tiny particulate impurities are gradually intercepted by the inner fine filter layer. The gradient pore structure of outer-coarse and inner-fine maximizes the dirt-holding space of the filter element, effectively slowing the rising speed of inlet and outlet differential pressure. After being fully purified, the liquid converges through the inner support core and stably flows to the downstream RO, UF and other precision filtration systems.
The all-polypropylene reinforced structure effectively resists high-speed water flow impact, preventing filter media collapse and liquid bypass. When the intercepted pollutants continue to accumulate and the system differential pressure rises to the 25-30PSID alarm threshold, the operator needs to replace the filter cartridge in time to restore the rated flow and filtration efficiency of the system, ensuring long-term stable and efficient operation of the water treatment system.
Technical Features
Standard universal specification: 40-inch length, 6-inch large outer diameter, universal end-cap structure, perfectly matching standard Parker Mega-Flow filter housings, no modification required for installation
5μm stable filtration accuracy: Multi-layer gradient polypropylene pleated media, stable interception of fine suspended solids and colloidal impurities, meeting RO system pretreatment water quality standards
Glue-free thermal fusion process: Overall hot-melt welding molding, no adhesive addition, effectively avoiding fiber shedding and secondary liquid pollution
High temperature and corrosion resistance: Full PP material structure, maximum continuous operating temperature 82°C, compatible with most industrial water and mild chemical fluids
Standard Buna-N sealing: Equipped with nitrile rubber O-ring, reliable sealing performance, effectively preventing unfiltered liquid bypass
Tool-free quick maintenance: Integrated integral lifting handle design, supporting fast disassembly and installation, reducing equipment downtime
Ultra-large filtration area: 5.6㎡ effective filtering area, strong dirt-holding capacity, low initial pressure drop, reducing pump operating energy consumption
Product Advantages
High cost performance:
As a universal base model, it has stable performance and more competitive procurement cost than customized models, suitable for large-scale batch replacement in industrial projects
Ultra-high single-element flow:
Single filter element achieves large flux operation, which can replace multiple traditional small filter cartridges, reducing the number of filter elements and housing investment
Long service cycle:
Large-area pleated structure and graded dirt holding design slow down pressure drop rise, extend replacement cycle, and reduce manual maintenance frequency
Stable and reliable operation:
Reinforced inner and outer support cages, anti-deformation and anti-collapse under high-flow impact, maintaining consistent filtration efficiency throughout the service life
Wide adaptability:
Universal interface design, compatible with new-built and renovated water treatment systems, suitable for multiple industrial scenarios
Low operating cost:
Low initial differential pressure reduces the load of water supply pumps, saving long-term system operating power consumption
Application Fields
Membrane system pretreatment:
5μm security pre-filtration for seawater desalination, brackish water desalination and industrial RO/UF ultrafiltration systems to protect precision membrane elements
Power industry water treatment:
Pretreatment and purification of boiler make-up water, circulating cooling water and condensate water in thermal power plants
Petrochemical industry:
Filtration of process water, circulating cooling water and mild chemical liquid to remove particulate impurities
Food and beverage industry:
Raw water pretreatment and process water purification for beverage, beer, juice and food production lines
Electronic manufacturing industry:
Preliminary filtration of ultrapure water production water to ensure stable water quality of subsequent precision processes
Municipal and industrial park water supply:
Large-scale raw water pretreatment and circulating water purification for municipal water plants and industrial parks
Industrial wastewater reuse:
Advanced filtration of biochemically treated wastewater to realize industrial water resource recycling
FAQ
Q1: What is the core parameter of Parker MFNP050-40N?
A1: It is a 40-inch, 6-inch outer diameter Mega-Flow high flow filter cartridge with 5 micron nominal filtration accuracy, standard Buna-N sealing, maximum operating temperature 82°C, and effective filtration area up to 5.6 square meters.
Q2: What is the difference between MFNP050-40N and MFNP050-40N-ITT?
A2: MFNP050-40N is a universal standard base model with ordinary end-cap, suitable for standard Mega-Flow filter housings; MFNP050-40N-ITT is a customized version with special ITT end-cap interface, applicable for specific customized housing equipment.
Q3: When does the MFNP050-40N filter cartridge need to be replaced?
A3: During system operation, when the inlet and outlet differential pressure rises to 25-30PSID (0.3-0.35MPa), or the water flow drops significantly, it indicates that the filter element is blocked and needs to be replaced in time.
Q4: Is MFNP050-40N reusable after cleaning?
A4: It is a disposable pleated polypropylene filter element. After long-term operation, the internal fine pores are easily blocked by colloids and impurities, which cannot be completely restored by cleaning. It is recommended to replace it directly after the pressure difference alarms.
Q5: What are the water quality requirements for the use of this filter cartridge?
A5: It is suitable for industrial water with SDI≤5, free of strong oxidants and heavy pollutants. It supports long-term stable operation in neutral, weak acid and weak alkali water environments.
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