MFNP050‑40N‑ITT CARTRIDGE FILTERS Mega‑Flow High‑Flow Pleated Element

MFNP050‑40N‑ITT CARTRIDGE FILTERS are 5‑micron nominal Mega‑Flow high‑flow pleated filter elements, designed for heavy‑duty large‑volume industrial water pretreatment and widely adopted as security pre‑filtration for reverse osmosis membrane systems. It works alongside POV12UNPFA high flow filter cartridge, and cooperates with PFTM11UNF high flow filter cartridge to deliver stable particle interception for seawater desalination, power‑plant boiler makeup water and industrial water reuse projects. MFNP050‑40N‑ITT cartridge filters adopt multi‑layer gradient polypropylene pleated media, with 40‑inch length and 6‑inch large outer diameter, bringing large dirt‑holding capacity and low initial pressure drop. They effectively trap fine silt, suspended solids and colloidal contaminants, protecting high‑cost downstream RO membrane modules from particle abrasion and premature fouling. Built‑in lifting handle and integrated nitrile O‑ring seal support tool‑free quick cartridge swap, reducing equipment downtime and cutting comprehensive operating costs for global industrial water‑treatment facilities.

Product Description

MFNP050‑40N‑ITT CARTRIDGE FILTERS belong to the Mega‑Flow high‑flow filter product line, developed for large‑flow liquid pre‑filtration and RO membrane protection scenarios. The nominal dimension is 40‑inch (1016 mm) length and 6‑inch (152 mm) outer diameter, featuring core‑free single open‑end outside‑in flow structure. A single filter cartridge can reach flow rate up to 1300 LPM, which greatly reduces the total number of filter elements and filter housing investment compared with traditional small‑size filter cartridges.

This cartridge filter is fully constructed of poly‑propylene materials, including multi‑layer progressive pleated polypropylene filter media, reinforced inner‑outer polypropylene support cages, glass‑fiber reinforced PP end caps and integrated nitrile O‑ring. All connecting joints adopt thermal fusion hot‑melt welding technology without adhesive, avoiding secondary water pollution caused by glue dissolution. Large pleated area provides sufficient filtration surface to extend service life. With nominal 5‑micron filtration accuracy, it mainly removes fine silt, suspended particles and colloidal impurities ahead of high‑precision reverse osmosis systems.

An integrated molded lifting handle is set on the open‑end side for convenient pulling‑out and installation during on‑site maintenance, compatible with vertical and horizontal Mega‑flow filter housings. When cooperating with upstream multimedia filtration and activated carbon pretreatment devices, the whole pretreatment system can keep feed‑water SDI value stably below 5, meeting strict inlet‑water index requirements of seawater and brackish‑water reverse osmosis systems. MFNP050‑40N‑ITT cartridge filters are widely purchased and stocked by EPC contractors, power plants, water‑treatment operators and filter spare‑part distributors. The maximum continuous operating temperature of standard nitrile seal version reaches 80 °C; EPDM, silicone and fluororubber sealing options are available for special working‑condition demands.

Working Principle

MFNP050‑40N‑ITT CARTRIDGE FILTERS follow outside‑in cross‑flow depth microfiltration principle. Untreated raw water flows into high‑flow filter housing and evenly spreads to the outer pleated surface of MFNP050‑40N‑ITT cartridge. Driven by system operating pressure, large‑granule sediment and coarse suspended flocs are trapped on outer pleated layers, while fine particles and colloids are intercepted layer‑by‑layer through gradient polypropylene media from outer surface to inner core.

Purified filtrate penetrates filter media layers, converges inside inner core and flows toward downstream RO or UF membrane units. The outer‑coarse‑inner‑fine gradient pore‑size structure maximizes dirt‑holding capacity and slows the rising speed of inlet‑outlet differential pressure. With continuous operation, intercepted pollutants accumulate gradually on filter media surface. Operators need to replace the cartridge timely when differential pressure reaches 25‑30 PSID alarm threshold, so as to restore rated water throughput and filtration performance.

Full‑polypropylene material delivers reliable chemical compatibility, adapting to most neutral aqueous solutions and conventional acid‑base cleaning agents for housing maintenance. Reinforced inner‑outer support cages effectively prevent media collapse and deformation under high‑velocity water‑flow impact, avoid fluid bypass, and maintain stable 5‑micron particle‑removal efficiency in the whole service cycle.

Technical Features

• 40‑inch length, 6‑inch large outer diameter, core‑free single open‑end structure, perfectly matched for Mega‑Flow high‑flow filter housings, supporting vertical and horizontal installation.

• Multi‑layer progressive pleated polypropylene filter media, nominal 5‑micron rating, stable interception performance for fine silt, suspended solids and colloidal contaminants.

• Outside‑in flow‑path layout, capturing pollutants on outer media surface and reducing fine‑particle leakage risk towards downstream membrane pipelines.

• Full thermal‑fusion hot‑melt welded structure without adhesive, eliminating secondary fluid‑pollution risk for industrial pure‑water scenarios.

• Large effective pleated filtration area, huge dirt‑holding capacity and low initial differential pressure, reducing feed‑pump load and long‑term system energy consumption.

• Reinforced PP inner‑outer support cages, anti‑collapse and anti‑deformation under high‑speed water‑flow impact.

• Built‑in integrated lifting‑handle design, supporting tool‑free quick removal and on‑site installation, greatly cutting maintenance time.

• Standard nitrile O‑ring seal; optional EPDM, silicone and fluororubber seals for different pH, water‑quality and temperature working‑conditions.

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• Product Advantages

• Ultra‑high single‑cartridge flow capacity up to 1300 LPM, decreases total cartridge quantity and filter‑housing investment, saving installation space for large‑scale water‑treatment plants.

• Stable 5‑micron filtration performance: gradient polypropylene media maintains consistent particle‑removal efficiency under long‑term continuous running.

• Excellent dirt‑holding performance: large filtration surface extends service interval, reduces replacement frequency and manual‑maintenance workload.

• Corrosion‑resistant all‑polypropylene construction, suitable for seawater, brackish water, process liquid and industrial circulating‑water filtration applications.

• User‑friendly on‑site maintenance: integrated lifting handle enables fast cartridge swap, minimizing system downtime and production‑loss risk.

• Good chemical tolerance, compatible with most neutral and moderate acid‑alkali industrial water‑treatment environments.

• Reliable integrated O‑ring sealing performance, effectively prevents unfiltered‑fluid bypass inside filter housing cavity.

• Dual installation modes for vertical and horizontal housings, flexible to adapt various project layout demands.

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• Application Fields

• 1. Industrial membrane pretreatment:

• 5‑micron security pre‑filtration for seawater desalination, brackish‑water reverse osmosis and ultrafiltration systems.

• 2. Power‑plant water‑treatment:

• boiler makeup‑water and condensed water filtration for thermal power plants.

• 3. Petrochemical industry:

• process‑liquid fine filtration to protect high‑value membrane separation equipment from fine‑particle damage.

• 4. Electronic manufacturing:

• pretreatment filter consumables for semiconductor ultrapure‑water production workshops.

• 5. Food & beverage industry:

• process‑water filtration and raw‑material extract purification.

• 6. Industrial wastewater recycling:

• advanced filtration consumables after biochemical treatment for industrial water resource recovery projects.

• 7. Municipal engineering:

• raw water pretreatment for large municipal water‑supply facilities.

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• FAQ

Q1: What is MFNP050‑40N‑ITT CARTRIDGE FILTERS mainly used for?

A1: MFNP050‑40N‑ITT cartridge filters are Mega‑Flow series 5‑micron high‑flow pleated elements, widely used as security pre‑filtration to protect RO membrane modules.

Q2: When should MFNP050‑40N‑ITT cartridge filters be replaced?

A2: Replace when inlet‑outlet differential pressure reaches 25‑30 PSID or obvious flow drop occurs. Actual service life depends on raw‑water quality.

Q3: Can MFNP050‑40N‑ITT cartridge filters be reused after chemical cleaning?

A3: It is disposable pleated polypropylene filter element. Severe fouling cannot be recovered by cleaning. Replace once differential pressure reaches alarm value.

Q4: What are feed‑water requirements for MFNP050‑40N‑ITT cartridge filters in RO pre‑filtration?

A4: Recommended feed‑water SDI ≤5; free chlorine and strong oxidants shall be removed; standard continuous operating temperature shall not exceed 80 °C.

Q5: What filter housings are compatible with MFNP050‑40N‑ITT cartridge filters?

A5: It fits Mega‑Flow series high‑flow filter housings, supports vertical and horizontal installation without extra modification.

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