For Middle‑East EPC contractors, plant operators and water‑treatment integrators, high‑flow security filtration with true absolute particle retention is critical to protect expensive downstream RO membranes, heat exchangers and precision process equipment. Traditional small‑size filter cartridges require large quantities to satisfy high‑volume flow demand, leading to bulky filter vessels, heavy replacement labor and higher risk of particle breakthrough under flow fluctuation.

Fulflo Mega Flow Plus Large Diameter Pleated Filter Cartridge is a well‑known large‑diameter absolute‑rated pleated series developed by Parker Fulflo, specially designed for high‑flow working conditions requiring strict particle removal performanceThermon. Different from nominal‑grade high‑flow elements, Mega Flow Plus adopts certified absolute‑rated filter media to achieve 99.98% particle removal efficiency (β≥5000). Core‑less structure, built‑in handle and positive O‑ring sealing simplify installation and replacement. Interchangeable aftermarket replacement cartridges match original dimensional and performance standards, helping local industrial projects reduce procurement cost and shorten spare‑part lead‑time for continuous‑run production lines.
Working Principle
Fulflo Mega Flow Plus Large Diameter Pleated Filter Cartridge adopts outside‑in flow pattern. Raw liquid flows across the outer pleated surface and permeates inward through multi‑layer gradient pleated media. Large‑size impurities such as sediment, rust and flocs are trapped on outer pleat layers; fine suspended solids and colloidal contaminants are intercepted by inner dense absolute‑rated media layers, realizing graded depth filtration and maximizing dirt‑holding capacity.
This series applies thermal‑bond assembly technology without glue, effectively avoiding fluid bypass and secondary contamination caused by adhesive dissolution. Positive O‑ring sealing guarantees sealing integrity even under flow surge. Built‑in lifting handle supports fast cartridge change‑out. As contaminants accumulate, inlet‑outlet differential pressure rises gradually. Operators shall replace cartridges once differential pressure reaches recommended value. Normally installed as security pre‑filtration upstream of reverse osmosis, ultrafiltration and fine process equipment, it prevents particle abrasion and fouling of high‑value downstream components.
Key Technical Specifications
Construction Materials
Filter Media:Pleated Polypropylene / Phenolic‑bonded Cellulose
Support Layer:Polypropylene
End Caps:Glass‑filled polypropylene
Structure:Core‑less design
Sealing:Positive O‑ring seal; O‑ring options: Buna‑N, EPR, Silicone, Fluoroelastomer(Viton)
Assembly:Full thermal‑bond, no adhesive
Dimension Parameters
Outer Diameter:152 mm (6 inch)
Inner Diameter:89 mm (3.5 inch)
Standard Length:40 inch (1016 mm)
Effective Filtration Area:5.1‑5.6 ㎡ (55‑60 ft²)
Installation:Single open‑end with built‑in lifting handle; compatible with Parker Mega Flow series filter housings
Performance Parameters
Absolute Micron Rating (β≥5000,99.98% efficiency):PP media:1 μm,2 μm,5 μm,10 μm,20 μm,40 μm,70 μm
Cellulose media:10 μm,15 μm,25 μm,100 μm,150 μm
Maximum single‑cartridge flow rate:up to 662 L/min (175 gpm) for water
Max allowable differential pressure:3.4 bar (50 psid) @20℃
Recommended replacement differential pressure:2.4 bar (35 psid)
Maximum operating temperature:Polypropylene media: 82 ℃
Cellulose media:121 ℃
Compliance:PP material complies with FDA CFR Title 21 requirements for food‑contact applications
Core Product Performance & Advantages
Absolute‑rated reliable particle interception
Certified β≥5000 absolute filtration efficiency ensures target‑size particles are almost completely removed, preventing fine‑particle breakthrough under variable flow shock. It provides trustworthy security protection for RO membrane systems and precision process fluid, which nominal‑rated cartridges cannot achieve.
Superior single‑element high‑flow performance
6‑inch large‑diameter core‑less pleated structure delivers huge filtration area. One Mega Flow Plus cartridge can replace 8 pieces of standard 2.5‑inch × 40‑inch filter cartridges, reducing total element quantity, shrinking housing dimension and lowering initial capital investment for skid‑mounted treatment trainsThermon.
Core‑less design with integrated lifting handle for easy maintenance
Core‑less structure reduces internal dead zone; built‑in handle allows operators to finish cartridge removal and installation rapidly without special tools. Positive O‑ring sealing eliminates bypass risk and guarantees filtration integrity. It greatly cuts downtime and labor cost for cartridge replacement.
Large dirt‑holding capacity extends service life
Multi‑layer gradient pleated media realizes depth‑type contaminant capture, slowing pressure‑drop rising speed. Longer service intervals reduce cartridge consumption and shutdown frequency for 24‑hour continuous‑run industrial plants.
Flexible media & sealing options for diversified working‑conditions
Polypropylene media suits aqueous fluid, weak acid‑alkali medium and food‑grade application; cellulose media adapts to oil‑base liquid, lubricants and non‑aqueous process streams. Multiple O‑ring material selections cope with different chemical compatibility requirements. PP version meets FDA food contact standard for food‑beverage production lines.
Typical Industrial Application Fields
Water Treatment & Desalination
Absolute‑grade security pre‑filtration for seawater and brackish‑water RO systems; raw‑water purification for municipal drinking‑water projects; removal of silt, suspended solids and colloids to mitigate RO‑membrane fouling risk.
Food & Beverage Industry
Edible vegetable oil filtration, beverage process‑liquid purification, raw‑water pre‑treatment. Polypropylene version satisfies FDA food‑contact requirements to secure production quality and product shelf‑lifeThermon.
Petrochemical & Chemical Industry
Filtration of lubricants, cutting coolant, wastewater and amine circulating fluid; removal of solid particles to protect catalyst, heat‑exchanger and precision reaction equipment.
Power Generation Industry
Boiler feed‑water pre‑filtration; circulating cooling‑water purification for thermal‑power plants, protecting high‑pressure auxiliary equipment.
General Manufacturing
Process liquid filtration for metal‑working fluid, industrial wastewater recycling and large‑volume industrial circulating water system.
Related Industrial Filter Products
3M 7000 Series High Flow Filter Cartridge
HFU640UY700H13W Pall High Flow Filter Element
3M Filter HF40PP002A01 Industrial High Flow Filter
Parker MFNP005‑40N Industrial Precision Filter Cartridge
FAQ
Q1: What is the difference between Fulflo Mega Flow Plus and ordinary Mega Flow series?
A: Mega Flow Plus is absolute‑rated (β≥5000,99.98% efficiency), for scenarios requiring strict particle blocking; ordinary Mega Flow belongs to nominal‑rated, used for general pre‑treatment where high absolute efficiency is not mandatory.
Q2: What fluid can Fulflo Mega Flow Plus filter cartridge adapt to?
A: PP media fits water, weak acid, weak alkali and food‑grade aqueous fluid. Cellulose media applies to oil, lubricant and partial non‑aqueous liquid. Select corresponding O‑ring material according to medium chemical property. Not suitable for strong corrosive organic solvent.
Q3: How to select micron rating for RO pre‑filtration?
A: 5 μm‑10 μm absolute grade is widely used for RO security filtration. For high‑turbidity raw‑water coarse pre‑treatment, choose 20‑40 μm. Final selection should refer to local raw‑water turbidity and particle‑size test report.
Q4: When should users replace Mega Flow Plus filter cartridge?
A: Replace cartridge when system differential pressure reaches recommended 2.4 bar. Do not operate beyond maximum differential pressure, to prevent media damage and particle breakthrough.
Q5: Can you supply interchangeable replacement Fulflo Mega Flow Plus cartridges for large Middle‑East projects?
A: Yes. Interchangeable cartridges strictly follow original dimension, sealing interface and absolute‑efficiency performance. Custom micron grade and O‑ring material are available. Batch test documents and bulk‑order quotation services are provided for industrial purchasers.