Parker Mega‑Flow is the flagship Fulflo large‑diameter pleated high‑flow filter cartridge series, covering 0.5‑10 μm nominal precision and 20‑40‑inch lengths, built for heavy‑duty industrial liquid filtration and RO membrane pre‑protection. Its 6‑inch oversized outer‑diameter structure delivers ultra‑high single‑element flow rate and outstanding dirt‑holding capacity, widely adopted by EPC contractors and water‑treatment system integrators worldwide. Many project engineers select PFTM11UNF pleated filter cartridge and RTM41HF050E high‑flow filter element to build multi‑stage pretreatment systems together with Parker Mega‑Flow products, effectively reducing SDI value and mitigating fouling risk for downstream membrane systems.
Parker Mega‑Flow Fulflo Series Large Diameter High Flow Filter Cartridge
Parker Mega‑Flow is the flagship Fulflo large‑diameter pleated high‑flow filter cartridge series, covering 0.5‑10 μm nominal precision and 20‑40‑inch lengths, built for heavy‑duty industrial liquid filtration and RO membrane pre‑protection. Its 6‑inch oversized outer‑diameter structure delivers ultra‑high single‑element flow rate and outstanding dirt‑holding capacity, widely adopted by EPC contractors and water‑treatment system integrators worldwide. Many project engineers select PFTM11UNF pleated filter cartridge and RTM41HF050E high‑flow filter element to build multi‑stage pretreatment systems together with Parker Mega‑Flow products, effectively reducing SDI value and mitigating fouling risk for downstream membrane systems.
Product Description
Parker Mega‑Flow belongs to the Fulflo product family of large‑diameter high‑flow pleated filter cartridges, designed as an economical upgrade solution replacing traditional 2.5‑inch small‑size filter cartridges for high‑flow industrial filtration scenariosParkerGB. The core feature is the 6‑inch (152 mm) large outer‑diameter design; one single Mega‑Flow cartridge can reach the equivalent flow capacity of about 8 pieces of conventional 2.5‑inch × 40‑inch filter cartridges, greatly cutting the total quantity of filter elements inside filter housings, shrinking equipment footprint and lowering overall project capital investment.
This series includes multiple sub‑models such as MFNP005‑40N, MFNP010‑40N, MFNP050‑40N and MFNP050‑40N‑ITT, with nominal filtration ratings ranging from 0.5 μm to 10 μm, and mainstream length options of 20‑inch and 40‑inch. Most versions adopt full polypropylene construction: gradient pleated polypropylene filter media, reinforced PP inner and outer support cages, glass‑fiber‑filled polypropylene end caps and integrated lifting handles. Thermal‑fusion hot‑melt welding is applied throughout production without adhesive glue, avoiding fiber shedding and secondary fluid contamination. Standard Buna‑N nitrile O‑ring provides stable sealing performance, preventing unfiltered liquid bypass. The integrated handle supports tool‑free quick replacement, reducing on‑site maintenance labor and equipment downtimeParkerGB.
The series contains universal flat‑end‑cap models and special customized end‑cap variants for special housings. It supports maximum continuous operating temperature up to 82°C, with good chemical compatibility for neutral aqueous solutions, weak acid and weak‑alkali process fluids. As a general‑purpose industrial consumable, it is widely deployed for raw water purification, process liquid filtration and security pre‑filtration for reverse osmosis and ultrafiltration systems across multiple industries.
Working Principle
Parker Mega‑Flow high‑flow filter cartridges adopt mature outside‑in depth filtration principle. Raw water or industrial process liquid enters the filter housing under system operating pressure and flows to the outer pleated surface of the filter cartridge. The multi‑layer gradient pore filter media realizes graded interception: large‑size sediment and coarse flocs are trapped on the outer coarse‑pore layer, while fine suspended solids and colloidal particles are intercepted by the inner fine‑pore layer.
The gradient structure maximizes dirt‑holding space and slows the rising speed of inlet‑outlet differential pressure. After purification, liquid converges through the inner support core and flows to downstream RO, UF and other precision separation equipment. Reinforced inner‑outer support cages enhance structural rigidity to resist high‑speed water‑flow impact and prevent filter media collapse and liquid bypass. When the differential pressure rises to the 25‑30 PSID alarm threshold, operators need to replace the filter cartridge timely to restore rated flow and filtration efficiency of the whole water‑treatment system.
Technical Features
Ultra‑large‑diameter structural design:
6‑inch outer diameter, single‑element flow equals multiple traditional small‑size cartridges, reduces housing quantity and installation space
Rich specification portfolio:
Nominal precision 0.5 μm‑10 μm; 20‑inch / 40‑inch length options; universal and customized end‑cap versions for different housing requirements
Glue‑free thermal‑fusion welding process:
All‑polypropylene components thermally bonded, no adhesive addition, eliminate risks of glue dissolution and fiber shedding
Large pleated filtration area:
High dirt‑holding capacity, slow pressure‑drop growth, extend service cycle and reduce replacement frequency
Wide chemical and temperature adaptability:
Full‑PP material system, max continuous working temperature 82°C, suitable for neutral, weak‑acid and weak‑alkali aqueous fluids
Reliable O‑ring sealing:
Buna‑N nitrile sealing ring prevents liquid bypass and guarantees complete filtration effect
Integrated lifting‑handle design:
Tool‑free disassembly and installation, lower maintenance workload and system downtime
Strict industrial‑grade manufacturing:
Stable filtration performance for 24/7 continuous heavy‑duty industrial operating conditions
Product Advantages
Remarkable cost‑saving effect:
Fewer filter cartridges and smaller‑size filter housings, lower initial investment for water‑treatment projects
Low‑pressure‑drop performance:
Large‑area pleated structure brings low initial differential pressure, reduces pump load and saves long‑term power consumption
Flexible model selection:
Multiple precision and length options, meet coarse pre‑filtration and high‑precision security filtration demands of different working conditions
Stable long‑term operation:
Reinforced support cages resist high‑flow impact, avoid media deformation, maintain consistent interception efficiency during service life
Easy spare‑part management:
Mature industrial series, abundant alternative models, convenient for project spare‑part stocking and later‑stage replacement
Wide‑range compatibility:
Fit newly‑built and retrofitted industrial water‑treatment systems, can be matched with original Parker housings and compatible replacement elements
Application Fields
Membrane system pretreatment:
Security pre‑filtration for brackish‑water desalination, seawater desalination, industrial RO and UF systems, protect high‑value membrane elements
Power industry water treatment:
Boiler make‑up water, circulating cooling water and condensate water filtration for thermal‑power plants
Petrochemical industry:
Filtration of process water, circulating cooling water and partial weak‑chemical process liquid, remove granular impurities
Food & beverage industry:
Raw‑water pretreatment and process‑liquid purification for beverage, beer and juice production lines
Electronics manufacturing:
Pre‑filtration for ultrapure‑water production lines, stabilize inlet water quality for precision manufacturing processes
Municipal and industrial park water supply:
Large‑scale raw‑water pretreatment and circulating‑water purification for water plants and industrial parks
Industrial wastewater reuse:
Advanced filtration for biochemically‑treated wastewater, support industrial water recycling projects
FAQ
Q1: What is Parker Mega‑Flow series?
A1: Parker Mega‑Flow is the Fulflo large‑diameter pleated high‑flow filter cartridge series, mainly represented by MFNP series models, 6‑inch outer diameter, covering 0.5‑10 μm precision, widely used for industrial high‑flow liquid filtration and RO pre‑filtrationParkerGB.
Q2: What is the difference between Mega‑Flow and Mega‑Flow Plus?
A2: Mega‑Flow adopts nominal‑rate filter media for general industrial pretreatment; Mega‑Flow Plus uses absolute‑rating media for scenarios requiring stricter particle removal performance.
Q3: When should Mega‑Flow series filter cartridges be replaced?
A3: Replace cartridges when inlet‑outlet differential pressure reaches 25‑30 PSID, or obvious flow attenuation occurs. Periodic replacement according to on‑site raw‑water quality is also recommended.
Q4: Can Parker Mega‑Flow cartridges be cleaned and reused?
A4: It is disposable pleated polypropylene filter element. After colloids and fine particles block internal pores, cleaning cannot fully restore filtration performance, direct replacement is suggested.
Q5: What shall be noticed for selecting Mega‑Flow models?
A5: Confirm filter housing inner structure (universal or special ITT end‑cap), select micron rating according to raw‑water SDI and downstream membrane requirements, and confirm seal material adapting to actual fluid temperature and chemical properties.
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