High-precision single-layer or double-layer hydrophilic PVDF filter membrane developed by Deyizhou Company is adopted in the product as filter media. The product is produced by overall structure sweat welding. It is provided with excellent filtration performance and ability for completely intercepting bacteria. The product meets the most severe particle removal filtration and sterilization filtration.
Features:
● The filter membrane is hydrophilic with absolute filtration accuracy;
● The product has higher effective filtration area and low use cost;
● The product has wide chemical compatibility;
● It has excellent applicability under high temperature condition;
● The product can be used for filtering solution with high protein content;
● Extremely low precipitates can be produced. 

Typical applications:
● Filtration of chip grinding fluid in electronics industry;
● Sterile filtration of biological products;
●Sterile filtration of chemical raw materials, injections and other pharmaceutical industries;
● Filtration of severe removal particles in chemicals and other industries;
● Special ink filtration;
● Organic solvent filtration;
● Draft beer filtration

Quality assurance:
● ISO9001: 2008 guaranteed quality management system;
● Traceability management system of each filter;
● Filter elements are flushed and pass integrity test before filter elements are left from the factory;
● The batch passes through bacterial challenge test for confirming 100% bacteria interception ability;

Biological safety: 
Biological Safety: The product materials comply with USP in-vivo VI-121 ℃ plastic biological response test.
Endotoxin: <0.25EU/ml;
Cleanliness: The product is in line with 2010 GMP requirements on injection of particles;
Readily oxidizable substance: the substance should be in line with 2010 GMP test requirements of particle contents in injections after water rinsing for 2000ml;
TOC/conductivity: after the product is flushed with 20L injection water at 25 ℃ (10〃) . It is in line with requirements of 2010 GMP on total organic carbon contents and conductivity in injection water. 

Filter element material composition:
Filter membrane
Single-layer or double-layer HPVDF filter membrane
Diversion material
Polypropylene
Outer shell
Polypropylene
Seal ring
Please see Filter Element Model Selection Table

Integrity test:
Aperture(um)
0.2 0.45
The lowest bubbling point in pure water(MPa)
≥0.24 ≥0.08

Main application technical indicators:
Maximum operating temperature
90℃/0.1MPa
Maximum operating pressure difference
0.42MPa/25℃
Recommended operating pressure difference
0.1-0.2MPa/25℃
Maximum back-pressure difference
0.2MPa/25℃
Effective filtration area (10 inches)
≥0.6㎡
Forward online steam sterilization (135 ℃)
30min/time
Disinfection by Disinfection cabinet (121 ℃)
30min/time