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Guardian® DEV Disposable Filters

Guardian® DEV Disposable Filters

High retention, hydrophilic UPE membrane filters for KOH and TMAH based developer solutions and other high pH chemical filtration applications 
 
● Hydrophilic UPE membrane: Superior wettability eliminates prewetting and flushing steps, saving time at changeout. Does not dewet in outgassing fluids, increasing equipment uptime.
● Available in retention ratings of 0.05 and 0.1 µm: Multiple retention ratings cover a broad scope of process requirements
● Large membrane surface area: Enables high flow rates in chemical delivery systems, while maintaining excellent ultrafine particle retention and longer lifetime
● Polyethylene construction: Provides excellent chemical compatibility and long lifetime in a cost-effective device
 
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規格說明:

Models:
Guardian DEV Cartridge, Guardian Plus HPM Cartridge, Guardian DEV HPX Disposable
 
Materials:
Membrane: Patented hydrophilic ultra-high molecular weight polyethylene (UPE)
Supports, sleeve, core, end caps: High-density polyethelene (HDPE)
Code 0 Double 2-222 o-ring: DEV; EP, E-FKM, Kalrez® 4079, Plus HPM; E-FKM, FER, DEV HPX; N/A
Chem-Line™ disposable outer shell: DEV; N/A, Plus HPM; N/A, DEV HPX; Polypropylene

 
Retention rating:
0.05, 0.1 µm
 
Membrane surface area:
DEV: 10": 0.85m², 20": 1.7m², 30": 2.55m²
Plus HPM: 10"; 1.9m², 20"; 3.8m², 30"; 5.7m²
DEV HPX: 10"; 1.1. m², 20"; N/A, 30"; N/A

 
Maximum operating conditions:
Maximum forward differential pressure: DEV; 0.35 MPa (3.5 bar; 50 psid) @ 25ºC (77ºF)
Maximum forward differential pressure: Plus HPM; 0.24 MPa (2.4 bar; 35 psid) @ 25ºC (77ºF)
Maximum forward differential pressure: DEV HPX; 0.35 MPa (3.5 bar; 50 psid) @ 20ºC (68ºF)
Maximum reverse differential pressure: DEV; 0.25 MPa (2.5 bar; 35 psid) @ 25ºC (77ºF)
Maximum reverse differential pressure: Plus HPM; 0.24 MPa (2.4 bar; 35 psid) @ 25ºC (77ºF)
Maximum reverse differential pressure: DEV HPX; 0.25 MPa (2.5 bar; 35 psid) @ 20ºC (68ºF)
Maximum inlet pressure: DEV; N/A
Maximum inlet pressure: Plus HPM; 0.34 MPa (3.4 bar; 50 psid) @ 25ºC (77 ºF)
Maximum inlet pressure: DEV HPX Disposable; 0.69 MPa (6.9 bar; 100 psid) @ 20 ºC (68 ºF)
Maximum operating temperature: 60ºC (140ºF)

 
Compatibility: 
Recommended for use in ammonium hydroxide, TMAH and low-termperature organic resist strippers
Not recommended in chemistries with peroxide or aromatic hydrocarbons.