Pentek®'s new GD and GDA Series Gradient Density Cartridges are manufactured from 100% Polypropylene, and fit the Big Blue® and Big Clear Housings. Two unique layers of polypropylene provide up to three times the contaminant holding capacity compared to pleated, string-wound and spun cartridges. A larger outer pre-filter layer reduces the partial load to the inner post filter allowing the cartridge to operate at higher flow rates and lower pressure drops. The effective filter depth is increased over 200% over string wound and spun polypropylene cartridges. The unique design and performance characteristics of the GD and GDA Series cartridge make them an excellent choice for residential, municipal, and industrial applications.
DGD Cartridges are sized to Pentek® Big Blue® and Big Clear Filter with both 10 and 20 Sumps.
Please see Manufacturer's Data Sheet for flow charts and more detailed information
Model | Maximum Dimensions | Micron Rating* | Micron Size | Initial deltaP (psi) @ Flow Rate (gpm) |
---|---|---|---|---|
GD-7520-BB | 4 1/2" x 9 7/8" (114 mm x 251 mm) | Nominal | Outside 75 - Core 20 | <1.5 psi @ 10 gpm (<0.1 bar @ 38 Lpm) |
GD-5010-BB | 4 1/2" x 9 7/8" (114 mm x 251 mm) | Nominal | Outside 50 - Core 10 | <2 psi @ 10 gpm (<0.1 bar @ 38 Lpm) |
GD-2501-BB | 4 1/2" x 9 7/8" (114 mm x 251 mm) | Nominal | Outside 25 - Core 1 | <3.2 psi @ 10 gpm (<0.2 bar @ 38 Lpm) |
GD-7520-20BB | 4 1/2" x 20" (114 mm x 508 mm) | Nominal | Outside 75 - Core 20 | <3 psi @ 10 gpm (<0.2 bar @ 38 Lpm) |
GD-5010-20BB | 4 1/2" x 20" (114 mm x 508 mm) | Nominal | Outside 50 - Core 10 | <4 psi @ 10 gpm (<0.3 bar @ 38 Lpm) |
GD-2501-20BB | 4 1/2" x 20" (114 mm x 508 mm) | Nominal | Outside 25 - Core 1 | <6.4 psi @ 10 gpm (<6.4 bar @ 38 Lpm) |
GDA-7505-BB | 4 1/2" x 9 7/8" (114 mm x 251 mm) | Absolute | Outside 75 - Core 5 | <5.2 psi @ 10 gpm (<0.4 bar @ 38 Lpm) |
GDA-5001-BB | 4 1/2" x 9 7/8" (114 mm x 251 mm) | Absolute | Outside 50 - Core 1 | <9 psi @ 10 gpm (<0.6 bar @ 38 Lpm) |
GDA-250.5-BB | 4 1/2" x 9 7/8" (114 mm x 251 mm) | Absolute | Outside 25 - Core 0.5 | <10.5 psi @ 10 gpm (<0.7 bar @ 38 Lpm) |
GDA-7505-20BB | 4 1/2" x 20" (114 mm x 508 mm) | Absolute | Outside 75 - Core 5 | <10.4 psi @ 10 gpm (<0.7 bar @ 38 Lpm) |
GDA-5001-20BB | 4 1/2" x 20" (114 mm x 508 mm) | Absolute | Outside 50 - Core 1 | <18 psi @ 10 gpm (<1.2 bar @ 38 Lpm) |
GDA-250.5-20BB | 4 1/2" x 20" (114 mm x 508 mm) | Absolute | Outside 25 - Core 0.5 | <21 psi @ 10 gpm (<1.4 bar @ 38 Lpm) |
* Based on manurafturer's internal testing. |