Get in touch with ECOFILTRONE™ Company
ECOFILTRONE™ · QINGDAO, CHINA
Filter Cartridge Manufacturer for Industrial Liquid Filtration
ECOFILTRONE™ is a filter cartridge manufacturer supplying industrial water and process liquid filtration from Qingdao, China. Our production covers filter cartridges and liquid filter bags, with engineering support for product selection, replacement matching and custom configurations.
- High-flow, pleated, membrane, melt-blown and string-wound cartridges
- Liquid filter bags for industrial filtration systems
- Application review, samples and order-to-operation support
24 hours
Quotation requests receive our response within 24 hours.
4–5 days
Stock products ship in 4–5 days.
Free samples
Samples are free; you pay the freight.
100 pieces
Our custom orders start from 100 pieces.
Filter Cartridges and Liquid Filter Bags
Use the application route when the filtration duty requires a fresh review. Our filtration products cover water treatment applications, RO and UF pretreatment, seawater desalination, wastewater reuse and process production.
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PHASE // 01
Pleated Filter Cartridges
Pleated media for prefiltration and polishing. Compare the media, micron rating, end configuration and required flow before choosing a series.
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PHASE // 02
Membrane Filter Cartridges
PES, PTFE, PVDF and Nylon 66 options for process liquids. Select the membrane, hardware and seals together for the specified chemistry.
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PHASE // 03
High Flow Filter Cartridges
Large-diameter elements for industrial water and process filtration. We check the housing interface, flow direction and operating conditions for replacement orders.
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PHASE // 04
Depth Filter Cartridges
Melt-blown polypropylene and string wound filter cartridge options for suspended solids and upstream loading control. Construction and media determine the capture mechanism.
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WATER · RO · UF
Industrial Water Filtration
Review the filtration stage before choosing an element: pretreatment, reuse, desalination or process-water polishing. We also support power generation, oil and gas, chemical processing…
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PHASE // 06
Liquid Filter Bags
Felt and mesh bag filters configured for your liquid, housing and particle-removal requirement. We supply standard and customized bag constructions.
Filtration Format & Specifications
Choose the removal duty as well as the format. A pore-size result and a particle-retention result describe different properties; ASTM F316 explains why pore measurements alone do not establish actual particle capture.
Filter Media for Your Process Liquid
The resistance of the material depends on the fluid, concentration, and temperature, as well as the environment of exposure. We review filter media, support structure, end caps and seals, as a wetted assembly, and determine an acceptable membrane is not paired with unsuitable hardware.
Polypropylene
PP is available in pleated, melt-blown, string-wound and bag constructions. Choose the structure around solids loading, required retention and the cartridge filter housing.
PES and PVDF
Membrane options for aqueous and process duties. For sensitive formulations, include adsorption, extractables and particle-shedding requirements in the selection review.
PTFE and Nylon 66
Membrane configurations follow the specified liquid and wetting conditions. PTFE liquid grades and gas grades have separate rating scopes.
Bag Media
Our bag options include polypropylene felt, polyester/PET felt and nylon mesh. Felt and mesh have different structures; select by the required filtrate and housing support.
[ SYS_REVIEW // D543 ]
ASTM D543 assesses plastics under defined conditions of reagent exposure. We use the operating and cleaning conditions provided to evaluate the proposed materials. The real duty, which may include continuous exposure, is more critical than a general compatibility assessment.
Send the Fluid and Cleaning ConditionsReplacement Cartridges Matched to Your Housing
A matching of cartridge dimensions is only part of a replacement order. An old part number or nominal length may not fully describe the seating geometry or gasket material, allowing a mechanically similar part to be the wrong choice.
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Dimensions
Actual overall length, outside and inside diameter, and space for the closing end.
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Interface
DOE, 222, 226, Code 7 or the specific high-flow connection shown on your drawing.
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Sealing
Radial or face seal, ring dimensions, elastomer and housing seat.
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Flow path
Inside-to-outside or outside-to-inside, with the required supports and orientation.
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Filtration duty
Media, rating basis, efficiency evidence and operating limits.
Replacement starts with a model number, drawing, photo or sample to understand the proposed configuration. SAE AS568F specifies dimensions of O-rings and identifies them; a ring designation alone does not define complete cartridge to housing compatibility.
Engineering Note
Fit approval is not a substitute for process acceptance. Approve the drawing and seal arrangement first, then run the selected filter on the process liquid against agreed filtrate and pressure-difference criteria.
Product Configuration Ranges
Use this information to select a family before requesting a product data sheet. The table shows available configurations and not equivalent filtration performance. A 5 micron cartridge filter, for example, needs its rating basis and test condition identified.
Series-scoped filtration and dimensional options
| Product configuration | Rating options | Length and diameter | Selection detail |
|---|---|---|---|
| PP pleated | 0.1–100 µm, nominal configuration | 5–40 in; 69 mm OD | Confirm the exact PP series, end cap and rating basis. |
| PES membrane | 0.04–1.2 µm by series | 5–40 in; 69 mm OD | Match retention duty, membrane grade and seals. |
| PVDF membrane | 0.1, 0.22, 0.45, 0.65 µm | 5–40 in; 69 mm OD | Include process and cleaning chemistry. |
| Nylon 66 membrane | 0.22, 0.45, 0.65, 1.2 µm | 5–40 in; 69 mm OD | Review formulation compatibility and contact conditions. |
| PP high-flow | Rating selected for the ordered series | 20, 40 or 60 in | Check actual diameter, seal and flow direction against the housing. |
| Melt-blown depth | 1–100 µm | 9.75–40 in; 63 or 115 mm OD | Match depth structure and solids loading. |
| String-wound depth | 1–100 µm | 9.75–40 in; 63 or 115 mm OD | Confirm winding media, core and temperature requirements. |
Cartridges provide various combinations of media area, depth, and support. A pleat increases available surface area, while a depth structure captures the particulate within the media; however, neither description provides a universal service-life figure.
- State the target contaminant and acceptable downstream result.
- Specify flow rate, viscosity, temperature and allowable pressure difference.
- Compare rating evidence as well as the micron number. An ASTM F316 pore measurement is not a substitute for a particle-retention test.
Samples, Orders and Delivery
We respond to quotation requests within 24 hours. Your fluid, filter specification, quantity and delivery destination let us prepare a useful technical and commercial response.
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Samples and Trial Orders
- We provide free samples; the customer pays freight.
- Custom samples are prepared in 7 days.
- Trial orders are accepted; standard minimum quantities depend on the product.
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Supply Schedule
- Stock products ship in 4–5 days.
- Our custom production takes 14 days.
- Our custom minimum order is 100 pieces.
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Payment and Quote Scope
- Our payment terms are 30% deposit and 70% balance before shipment.
- Price follows media, construction, rating, size, quantity and packing requirements.
- Packaging and shipping are coordinated for the agreed order.
A cheaper element is not always a cheaper full changeout. Compare the cost of a full changeout and the observed run interval at acceptable filtrate quality. Use your own element count, labor and operating data in the Annual Changeout-Cost Calculator.
Request a Sample for TrialProduction, Inspection and Product Documents
ECOFILTRONE™ manufactures cartridges and liquid filter bags, supported by engineering for industrial liquid filtration, using production equipment for pleating, membrane assembly, melt-blown extrusion, string winding, bag cutting and sewing, end cap welding or bonding, and cartridge assembly.
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01 / SPEC
Configuration check
dimensions, end-cap arrangement and seals against the ordered product.
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02 / QA
Product inspection
dimensional, integrity, flow and filtration-performance verification according to product requirements.
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03 / DOCS
Order documentation
we provide datasheets, drawings and product-specific material documents for the agreed scope.
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04 / COMPLIANCE
Receiving requirements
tell us which inspection and compliance documents your application requires when requesting a quote.
Application Review Through Operating Support
Support runs from the first application review to installation and operating follow up. A common specification links the requested filtration result to the cartridge that is manufactured and delivered.
Review the Duty
Review the Duty
Send the fluid, flow, temperature, required rating, housing and current cartridge. Include upstream treatment and any recent operating change.
Confirm the Configuration
Confirm the Configuration
The configuration review checks media, size, interface, seals and replacement matching, followed by the relevant datasheet or drawing.
Prepare the Trial or Order
Prepare the Trial or Order
Agree on sample configuration, quantities and acceptance criteria. Production, inspection, packaging and shipping follow the order scope.
Review Operation
Review Operation
After delivery, we provide installation and compatibility support, review pressure difference and service life, and help troubleshoot the filtration configuration.
Cartridge-to-Housing Approval Record
Capture dimensions, interface, seal and flow direction in one record before releasing a replacement order.
Open the Housing Approval RecordFilter Trial Acceptance Map
Check the agreed filtrate result alongside loading, time-series pressure difference and cumulative treated volume.
Open the Trial Acceptance MapAnnual Changeout Cost
Calculate a purchasing comparison from your observed interval, element quantity and maintenance costs.
Calculate Changeout CostFiltration Projects and Supply Experience
Our product and technical support experience includes industrial water, desalination and process filtration projects in Saudi Arabia, Indonesia and other export markets. These illustrate product configuration and supply.
PHASE // 01
Saudi Arabia: Reinforced Filter Bag Trial
The buyer reported a bag-strength problem: bottom tearing and deformation. ECOFILTRONE™ supplied eight PP size #2 bags, 50 µm and 7 × 32 in, with reinforced bottoms because the request concerned bag strength.
- Trial: eight bags in one housing.
- Feedback: after about nine days, the buyer reported no strength complaints.
- Next order: 200 bags.
PHASE // 02
Indonesia: Custom SWRO Housing Match
For the Belawan SWRO project, we supplied eight custom 60 in high-flow cartridges for an existing 8 in housing.
- Custom OD: 169–170 mm.
- Radial sealing diameter: 150–155 mm; six cages.
- Outside-to-inside flow; dimensions, seals and flow configuration matched.
PHASE // 03
Saudi Arabia: Threaded High-Flow Supply
Our custom 40 in PP, 5 µm threaded high-flow configuration included high-temperature support.
- Sample configuration submitted for verification.
- Sample approval followed by production and shipment of 300 cartridges.
- The project progressed from matching and sampling to a production order.
Application Fit and Selection Boundaries
Uncertain treatment target, repeated blockage or a tighter micron request warrant an application review prior to a new order. We concentrate on industrial liquid filtration consumables. The target contaminant and the complete filtration system determine the useful element.
01 Dissolved contaminants:
particulate cartridges and bags do not by themselves remove dissolved salts or every dissolved color or chemical. Mechanical filtration targets suspended material.[4]
02 High solids loading:
review the upstream stage before selecting a finer final cartridge. A finer grade can impose a different flow and loading trade-off.
03 Sensitive formulations:
include component binding, extractables and shedding in the review.
04 Gas versus liquid:
gas and liquid rating labels are not interchangeable. Wetting behavior and the specified liquid grade matter.
Send Your Filter Specification
Comparing filter manufacturers or preparing a replacement order? Send the current cartridge model or photo, housing details, fluid, flow, temperature, rating and quantity. We will review the application and respond within 24 hours.
Request My Filtration Quote-
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Known part:
send its model and both end views.
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New duty:
send the filtration target and operating conditions.
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Trial comparison:
include the current run data and acceptance criteria.
Purchasing and Engineering Questions
We manufacture high-flow, pleated, membrane, melt-blown and string-wound filter cartridges, alongside industrial liquid filter bags. The depth category includes melt-blown and string-wound products; the applications card is a route by operating duty.
Send the fluid and concentration, temperature, flow rate, target contaminant, required rating, housing model, current cartridge and quantity. Photos or drawings of both ends help our engineer check the interface; we respond to quotation requests within 24 hours.
A replacement specification needs the actual length, outside and inside diameters, end interface, seal material and seating dimensions, flow direction, media grade and operating conditions, even when the old and new elements carry the same nominal length or micron label. We provide matching and custom configurations, with fit confirmation separate from a performance trial.
No. Finer filtration is not always better for the duty; the rating basis, test method, loading and flow conditions must be compared. A pore-size measurement such as ASTM F316 describes a different property from actual particle-size retention; ask for the data relevant to the ordered model.[2]
Compare the required filtrate, solids loading, media, seals and existing filtration equipment. Both formats cover different constructions and retention duties, so neither is a universal cost or capacity winner; the selected product and operating record settle the comparison.
Rapid cartridge blockage does not necessarily originate in the cartridge itself. When a short run follows an upstream operating change, record what reached the cartridge before and after that event, along with the operating conditions and downstream test results, rather than assuming that a different micron label will resolve the problem.
- Log pressure difference over the run and cumulative treated volume.
- Compare the same feed and operating conditions.
- Use the agreed filtrate requirement and changeout criterion to review the result.
That requires identifying the contaminant state and treatment objective. A suspended-particle cartridge is not a general treatment for dissolved chemicals; send the liquid description and required result so the filtration stage can be reviewed.[4]
A pore label alone does not establish process-specific microbial retention. For pharmaceutical sterilizing filtration, the validation framework in ASTM E3469 considers the actual process fluid and use conditions alongside filter integrity and retention, so an ordinary particle-rating label cannot replace the evidence required for that particular process.[5]
Samples are free, with freight paid by the customer, and trial orders are accepted. Custom sample preparation takes 7 days; standard minimum quantities depend on the product and custom orders start from 100 pieces.
We ship stock products in 4–5 days and our custom production takes 14 days. Our payment terms are 30% deposit and 70% balance before shipment.
Datasheets, drawings and product-specific material documents are available for the agreed scope. List the receiving and application requirements in the inquiry so the documents are checked against the exact product and applicable certificate holder.
Installation, compatibility and operating support are available. Send the ordered model, operating log and downstream result for a focused review.
