Premium Glass Fiber Filter Cartridge for Ultrafiltration Water Treatment System

1. Product Introduction of Glass Fiber Filter Cartridge

The glass‑fiber filter cartridge belongs to gradient depth‑filtration high‑flow filter element, acting as the core security‑filtration spare part installed inside filter housings of ultrafiltration pretreatment systems. Raw water sourced from surface reservoirs, underground well water and factory recycled wastewater carries silt, rust particles, fine textile fibers, oily impurities and organic colloidal substances. Without the deep interception from glass‑fiber filter cartridge, tiny pollutants will stick onto and block the micropores of ultrafiltration membranes, triggering irreversible membrane fouling, shortening membrane service life and raising the chemical‑cleaning frequency of ultrafiltration water‑making equipment. For that reason, heat‑resistant glass‑fiber filter cartridges have become indispensable filter accessories for industrial ultrafiltration projects working under harsh water‑quality conditions.

Raw‑water firstly gets rid of coarse sediment and rigid large‑size particulate pollutants through the upstream liquid filter. After preliminary coarse filtration, water flows into the stainless‑steel filter housing and receives fine‑depth filtration completed by our glass‑fiber filter cartridge. We prepare multiple interchangeable filter elements adapting to diverse ultrafiltration operating environments:

• For conventional ultrafiltration security filtration: Pleated Security Filter Element for Industrial Ultrafiltration

• For thermal‑power‑plant condensate water ultrafiltration projects: Condensed Water Filter Element for Industrial Ultrafiltration

• For seawater‑desalination ultrafiltration pretreatment: Dow Membrane Filters Type SW30HRLE‑400 High Flow Cartridge

• For heavy‑load industrial‑water ultrafiltration stations: Cartridge Filter Element for High‑Flow Applications in Ultrafiltration

Our glass‑fiber filter cartridge consists of multi‑layer gradient‑density glass‑fiber filter medium, corrosion‑proof inner supporting skeleton, injection‑molded upper‑and‑lower end‑caps and elastic EPDM sealing rings. Its three‑dimensional gradient pore structure can capture pollutants of different particle sizes from outer coarse‑pore layer to inner fine‑pore layer, greatly improving the overall dirt‑holding capacity. Compared with ordinary polypropylene pleated cartridges, glass‑fiber material stands up to higher working temperature and keeps stable filtering performance under oily and weak‑corrosion water‑quality surroundings. It supports mainstream 226‑fin bayonet connection and flat‑end‑cap installation, matching most international‑standard high‑flow filter housings. Every finished glass‑fiber filter cartridge will pass bubble‑point inspection and hydraulic‑pressure leakage test before shipment, ensuring stable cooperative operation with ultrafiltration‑membrane equipment. Our factory provides bulk spot‑goods supply and personalized customization service for non‑standard ultrafiltration‑system demands.

2. Working Principle: Collaborative Filtration With Ultrafiltration Equipment

The full water‑purification workflow adopts three‑stage progressive filtration: liquid filter coarse filtration → glass fiber filter cartridge deep fine filtration → ultrafiltration‑membrane deep separation. Gradient‑structured glass‑fiber medium intercepts suspended contaminants by physical screening, inertial sedimentation, diffusion adsorption and deep‑layer capture effects.

2.1 Long‑Term Stable Filtration Operation

After coarse screening of the front‑end liquid filter, raw‑water enters the filter housing and permeates inward from outer coarse‑pore glass‑fiber layers toward fine‑pore inner layers and the central water‑collecting pipeline. Large‑size impurities are trapped on the outer filter layer, medium‑sized particles are intercepted in the middle layer, and ultrafine colloidal contaminants are captured deep inside the filter medium. Treated‑water gathers inside the central pipeline and steadily flows into ultrafiltration equipment for the removal of bacteria, macromolecular organics and ultra‑fine suspended particles. Benefiting from gradient‑density glass‑fiber construction, the cartridge maintains low‑stable pressure‑drop during long‑time high‑flow operation and prevents insufficient water‑supply for continuous ultrafiltration water‑making.

2.2 Differential‑Pressure Reminder for Cartridge Replacement

Pollutants will accumulate gradually inside three‑dimensional glass‑fiber medium during continuous running and lift the inlet‑outlet pressure‑difference. Once pressure‑difference reaches the 0.25 MPa warning threshold, operators need to replace the glass‑fiber filter cartridge promptly. Blocked cartridges will increase water‑pump operating‑load, reduce ultrafiltration water‑output and speed‑up membrane fouling.

2.3 Cooperation With Ultrafiltration Back‑Washing System

Water filtered by glass‑fiber filter cartridge can serve as the back‑flush water‑source of ultrafiltration membrane modules. After mixing with compressed air, it forms gas‑water mixed cleaning‑fluid to wash pollutants adhering to ultrafiltration‑membrane surfaces, slow‑down membrane contamination and extend the chemical‑cleaning cycle of ultrafiltration machinery.

3. Standard Technical Parameters

Dimension and Flow‑rate Specifications

• Outer diameter: 152 mm

• Optional cartridge length: 20‑inch, 40‑inch, 60‑inch

• Single‑cartridge rated flow: 60‑120 m³/h

• Filtration precision options: 1 μm, 3 μm, 5 μm, 10 μm, 20 μm, 50 μm

• Connection form: 226 fin‑type bayonet, flat open‑end cap

Filter‑Material Performance Index

• Glass‑fiber medium: Max working temperature ≤80℃, excellent deep‑filtration and high dirt‑holding capability

• PP alternative medium: Max working‑temperature ≤60℃, pH tolerance 1‑13, cost‑effective

• PTFE alternative medium: Superior acid‑alkali resistance, suitable for corrosive industrial wastewater

• Standard sealing ring: EPDM; optional silicone rubber and fluororubber

Operating‑Limit Parameter

• Maximum working pressure: 1.0 MPa

• Recommended replacement differential‑pressure: 0.25 MPa

• Initial system pressure drop: ≤0.02 MPa

Matched Accessories

Front‑end industrial liquid filter, stainless‑steel filter housing, differential‑pressure gauge and pipeline mounting brackets

4. Strict Product‑Quality Assurance System

We are a professional manufacturer specialized in gradient glass‑fiber filter cartridges and complete ultrafiltration pretreatment schemes. The whole manufacturing procedure complies with ISO9001 international quality‑management standards. For overseas export‑orders, we can supply material inspection certificates and batch‑detection reports to satisfy international‑project acceptance criteria.

1. Raw‑material inspection: Glass‑fiber medium, inner support‑skeleton and sealing‑rings receive sampling inspection on high‑temperature resistance, tensile strength and chemical‑corrosion resistance.

2. Online production inspection: QC‑workers examine gradient‑layer laying uniformity, end‑cap bonding strength and sealing property for each cartridge.

3. Finished‑product inspection: 100 % air‑tightness and bubble‑point testing for every production batch.

4. Packing and shipment: Independent damp‑proof wrapping and shock‑resistant export cartons. Standard‑specification cartridges are deliverable within 3‑7 working‑days, and customized‑order delivery‑cycle ranges 12‑20 working‑days.

Under clean raw‑water operating‑conditions, the normal usable‑life of the glass‑fiber filter cartridge is 1‑3 months. Our engineering‑team supplies long‑term free filter‑selection guidance and remote‑operation troubleshooting for clients running ultrafiltration water‑treatment stations.

5. Main Application Fields Matched With Ultrafiltration Equipment

1. Ultrapure‑water manufacturing: Pretreatment deep‑filtration for ultrafiltration‑RO combined water‑production systems

2. Seawater‑desalination engineering: Raw‑water protective filter cartridge for brackish‑water and seawater ultrafiltration‑plants

3. Petrochemical‑wastewater disposal: High‑temperature‑resistant fine pretreatment before tubular‑ultrafiltration wastewater‑processing

4. Municipal reclaimed‑water recycling: Supporting glass‑fiber cartridges for large‑scale centralized ultrafiltration‑stations

5. Thermal‑power‑plant sector: High‑temperature condensate‑water filtration matched with condensed‑water ultrafiltration‑equipment

6. Fine‑chemical and food‑and‑beverage industry: Process‑water pretreatment for high‑temperature working‑condition ultrafiltration‑purification machinery

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