PTR Filter Cartridges Dual-Layer PTFE
PTR Membrane Filter Cartridges are sterilizing grade filtersmanufactured with two layers of inherently hydrophobicpolytetrafluoroethylene (PTFE) membrane for extra security.These cartridges are designed for use in the filtration ofaggressive solvents and as compressed gas and vent filters. Eachcartridge module is individually integrity tested using the waterintrusion method before it is released from manufacture. Thecartridge surface area, filter core design, pleat configuration, andpleat packing density have been optimized to provide increasedcartridge life and lower filtration operating costs. Ruggedconstruction ensures repeatable steaming and testing.
Maximum Operating Parameters
Differential Pressure
• Forward (in water) 50 psid (3.4 bard) 20 °C (68 °F)
• Reverse 40 psid (2.7 bard) at 20 °C (68 °F)
Operating Temperature 82 °C (180 °F) at 10 psid(0.69 bard) in water
Recommended Changeout Pressure 35 psid (2.4 bard)
Sanitization/Sterilization
Filtered Hot Water 90 °C (194 °F), 30 minutes, multiple cycles, max 3 psid forward flow
Autoclave 121 °C (250 °F), 30 min, multiple cycles
In-line Steam 135 °C (275 °F), 30 min, multiple cycles
For all elevated temperature procedures above, a stainless steel support ring is required.
Construction Materials
Filtration Media Dual Layered Polytetrafluoroethylene (PTFE) Membrane
Media Support Polypropylene
End Caps Polypropylene
Center Core Polypropylene
Outer Support Cage Polypropylene
Sealing Method Thermal Bonding
O-rings Buna, Viton® (or FKM), EP, Silicone, FEP Encapsulated Silicone, FEP Encapsulated Viton (or FKM)
Dimensions
Length 5 to 40 in. (12.7 to 101.6 cm) nominal
Outside Diameter 2.75 in. (7.0 cm) nominal
Filtration Area 7.0 ft2 (0.65 m2) per 10 in. length
