Datasheet summary
DGD Series Dual-Gradient Density Cartridges
Engineering summary from PDF text extraction for DGD Series Dual-Gradient Density Cartridges. Verify every value with the OEM datasheet.
Summary
Product Identification
The DGD Series Dual-Gradient Density Cartridges are manufactured from 100% pure polypropylene. These cartridges are designed with spun fibers that form a true gradient density from the outer to the inner surfaces. They are specifically sized for use in Big Blue® housings.
Key features include:
- Manufactured from pure 100% polypropylene
- Designed for purity and chemical compatibility
- Spun fibers form a true gradient density from outer to inner surfaces
- Will not impart taste, odor, or color to the liquid
- Superior chemical resistance and not prone to bacterial attack
- Achieves up to three times the dirt-holding capacity of similar size sediment cartridges, and even greater capacity than standard spun or string-wound cartridges.
- Offers very high particulate reduction capacity, increased to a full 233% of standard spun-polypropylene or string-wound cartridges.
- Suitable for all residential, rural, municipal, and commercial applications.
Operating Limits
Temperature Rating:
- 40–145ºF (4.4–62.8ºC)
Initial Pressure Drop and Flow Rate:
- All listed models have an initial pressure drop of <1 psi (<0.1 bar) at flow rates of 10 gpm (38 Lpm) or 20 gpm (76 Lpm), depending on the model length.
Materials of Construction
- Filter Media: Polypropylene
Mechanical / Hydraulic
DGD Series Cartridge Specifications:
| Model | Maximum Dimensions | Micron Rating* (nominal) | Initial ΔP @ Flow Rate |
|---|---|---|---|
| DGD-2501 | 4½" x 10" (114 mm x 254 mm) | Pre-filter: 25, Post: 1 | <1 psi @ 10 gpm (<0.1 bar @ 38 Lpm) |
| DGD-5005 | 4½" x 10" (114 mm x 254 mm) | Pre-filter: 50, Post: 5 | <1 psi @ 10 gpm (<0.1 bar @ 38 Lpm) |
| DGD-7525 | 4½" x 10" (114 mm x 254 mm) | Pre-filter: 75, Post: 25 | <1 psi @ 10 gpm (<0.1 bar @ 38 Lpm) |
| DGD-2501-20 | 4½" x 20" (114 mm x 508 mm) | Pre-filter: 25, Post: 1 | <1 psi @ 20 gpm (<0.1 bar @ 76 Lpm) |
| DGD-5005-20 | 4½" x 20" (114 mm x 508 mm) | Pre-filter: 50, Post: 5 | <1 psi @ 20 gpm (<0.1 bar @ 76 Lpm) |
| DGD-7525-20 | 4½" x 20" (114 mm x 508 mm) | Pre-filter: 75, Post: 25 | <1 psi @ 20 gpm (<0.1 bar @ 76 Lpm) |
* Based on manufacturer's internal testing.
Certifications
- Tested and Certified by NSF International to NSF/ANSI Standard 42 for material requirements only.
Warning
- Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions from the complete OEM PDF datasheet. For contractual data, please refer to the specific OEM PDF revision used on your project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.