Products Description

The precision filter cartridge is a high-efficiency filtration element manufactured from polymeric microporous membranes or depth-fiber media, with filtration ratings from 0.01μm to 50μm. It effectively removes suspended particles, colloids, bacteria, and microorganisms from fluids, and is widely used in purification and sterilization processes across electronics, pharmaceuticals, food & beverage, chemicals, and compressed air systems.

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Construction & Materials
The precision filter cartridge consists of filter media, support layers, core, end caps, and O-rings. Media options include Polypropylene (PP), Polyethersulfone (PES), PTFE, Nylon, and Glass Fiber (GF). Cores and end caps are available in polypropylene or stainless steel, while O-rings come in silicone, EPDM, FKM, and other materials to ensure chemical compatibility with a wide range of process fluids.

Key Features :

Precision filter cartridge delivers stable retention of submicron contaminants.

Precision filter cartridge offers low initial pressure drop and energy-saving operation.

Precision filter cartridge provides high dirt-holding capacity in a compact design; select types are cleanable.

Precision filter cartridge is available in multiple materials (PP, PES, PTFE, metal fiber) for acid/alkali/heat resistance.

Application Fields :

Electronics: ultrapure water polishing in semiconductor manufacturing – precision filter cartridge ensures particle-free rinse.

Pharmaceuticals: sterile filtration for APIs and WFI – precision filter cartridge passes bacterial challenge tests.

Food & Beverage: clarification of beer, wine, bottled water – precision filter cartridge guarantees biological stability.

Chemical & Hydraulic: solvent, plating bath, hydraulic oil purification – precision filter cartridge protects sensitive valves and nozzles.

Compressed air & gases: oil mist and particle removal – precision filter cartridge secures downstream equipment.

Service Life :
Typical replacement interval for a precision filter cartridge is 3–6 months, depending on:

Inlet contaminant load and particle size distribution

Operating temperature, pressure, and flow fluctuations

Maximum allowable differential pressure (usually 0.2–0.3 MPa)
It is recommended to monitor the pressure drop across the precision filter cartridge or perform periodic sample checks. Replace immediately when the set limit is reached to avoid secondary contamination and excessive system pressure loss.

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Parameter	Common Specification / Typical Value
Common Filtration Ratings	0.22μm, 0.45μm, 1μm, 5μm, 10μm
Common Filter Media	Polypropylene (PP), Polyethersulfone (PES), PTFE
Common Outer Diameter	φ69mm (standard), φ70mm (standard)
Common Lengths	10", 20" (most widely used); 5", 30", 40" optional
Common Connection Types	222 (double O-ring flat end), 226 (single O-ring with fin), DOE (double open end)
Common O-Ring / Seal Materials	Silicone, EPDM, FKM
Common Max. Operating Temperature	PP: ≤60℃; PES: ≤80℃; PTFE: ≤120℃
Common Max. Forward Differential Pressure	0.4 MPa (at ambient temperature)
Common pH Range	PP / PES: 4–12; PTFE: 0–14
Common Sterilization Methods	Autoclaving (121℃, 30 min); Hot water sanitization (90℃, 30 min)
Common Integrity Tests (Sterilizing Grade)	Bubble-point test, Diffusion flow test
Common Flow Rate per 10" Cartridge (Clean Water)	0.5–1.5 m³/h (precision-dependent)
Common Initial Pressure Drop (Clean Water at Rated Flow)	≤0.01 MPa
Common Storage Conditions	Cool, dry place; protected from direct sunlight; temperature ≤40℃
Common Packaging	Double-sealed PE bags, individually packed, with certificate of conformance included

Factory Profile

Xinxiang Jun Filters and Chemical Co.,Ltd. is a professional manufacturer engaged in the design and production of filters, filtration equipment,purification devices, and oil water separation devices. The company has gathered a large number ofprofessional, sen or engineers and othertechnological elites, specializing in design research and evelopment manufacturing. The R&D team is strong, wth a high level of professional technology and rich practical experience. The company has advanced production equipment and a complete quality and safety assurance system. Over the years, we have achieved multiple research results and patented technologies, designed and developed more than 100 types of products ineight categories, and put them on the market. Ourproducts have been exported to multiple countrics, gcncrating good cconomic and social bencfits. The company has a ded cated product research and development department that directly engages in research and development. The personnel in the department have a high level of professional techrical expertise and rich work experience.

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Package And Transport

CERTIFICATE

FAQ

Q1: What is the difference between a precision filter cartridge and a standard filter cartridge?
A: A precision filter cartridge has a uniform, validated micropore structure with a defined and verifiable retention rating, ensuring stable particle capture at specified sizes. Standard cartridges use coarse depth filtration with broad rating ranges and lack integrity testing, leading to inconsistent batch performance. Precision filter cartridges are essential for applications with strict cleanliness requirements.

Q2: Does the filtration accuracy of a precision filter cartridge decrease over time?
A: For membrane-type precision filter cartridges, accuracy remains constant until the maximum allowable differential pressure is reached. For depth-type cartridges, retention may slightly improve as contaminants bridge within pores, but pressure drop increases progressively. Either way, as long as differential pressure stays within limits, the precision filter cartridge maintains reliable performance.

Q3: What causes a sudden pressure drop increase across a precision filter cartridge?
A: Common causes include: ① Upstream contaminant surge or particle size shift; ② Lower fluid temperature raising viscosity; ③ Cake layer formation on the cartridge surface; ④ Sudden flow rate increase; ⑤ Improper sealing or bypass due to size mismatch, reducing effective area. Check upstream water quality and flow meters, and replace the precision filter cartridge if necessary.

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