Tag Archives: Condensate polishing plant

Aegis®DualGuard I® Condensate Polishing Septa

Graver Technologies DualGuard elements are engineered for systems that require a uniform precoat on the outer surface of the septa, providing an effective removal of iron oxide particles while still allowing for an effective backwash.

The all polypropylene constructed element has two distinct zones. The outer zone is a multi-string wound surface ideal for precoating in either a thin or a full layer resin precoat and the inner zone is a pleated polypropylene with a fixed pore media. The inner pleated filter media is available in a variety of micron grades to meet specific requirements of the condensate system. The element is available in most end cap connections.

  • The optimum precoat surface allows for the distribution and sustainability of an evenly thin layer precoat for optimum performance
  • Precoatable with a full or thin layer of powdered resin
  • Available in various outside diameters
  • Fixed pore construction eliminates dirt unloading as differential pressure increases
  • High surface area of pleated media
  • Removal efficiency rated
DualGuard_DSDownload

AEGIS® TurboGuard® Pre-Filters

Its technically improved 6 inch (152 mm) high-flow filter for the utility market. Graver is the world’s largest supplier of condensate system filters and components and has been manufacturing precoat and non-precoat septa for condensate systems for more than 50 years. Graver is the consistent technology innovator with more than 40 patents and numerous technical advances for condensate and high purity water applications.

Graver’s family of TurboGuard High Flow Filters will provide superior CRUD removal upstream of deep bed demineralizers.  TurboGuard High Flow Filters may also be used following ion exchange beds as a resin trap, or as highly efficient pre-filters before membrane systems.

Graver’s TurboGuard line of filters are manufactured in the USA at Graver Technologies manufacturing plants, under an ISO-9001 (2000) quality system.

Graver’s TurboGuard High Flow Filter integrates a number of improvements over currently available elements.  With the most experience of any supplier in condensate applications, Graver can access more than 50 years of experience when improving fundamental filtration in condensate and high purity water applications.

Filter Specifications

Media:
 
Pleated Proprietary
 
Inner core:
 
Multi-Layer Polypropylene
 
Gaskets/O-Rings options:
 
EPDM Quad Seal
 
Micron ratings:
 
1, 3, 5, 10, 20, 40, 60, 100 μm
*Other micron rated media available upon request
Dimensions and Operating Parameters 
Nominal lengths:
 
20" 40" 60"
 
Outside diameter:
 
6” (152 mm)
 
Maximum operating temperature:
 
180°F (85°C)
 
Differential pressure:
 
180°F@ 20psid (82°C @1.4 bar)
160°F@ 30psid (71°C @2.1 bar)
77°F @ 50psid (25°C @ 3.4 bar)
Recommended changeout  pressure for disposal: 35 psid (2.4 bar) 
Maximum flow rates:
 
60” element up to 500 GPM (1892 lpm)
40” element up to 350 GPM (1325 lpm)
20” element up to 175 GPM (662 lpm)

Filter Removal Efficiency

Beta Ratio Efficiency Beta 1000 99.9% Beta 100 99% Beta 10 90% 
1 micron
 
1
 
0.6
 
0.2
 
3 micron
 
3
 
2
 
1.5
 
5 micron
 
5
 
4
 
3
 
10 microns
 
10
 
8.5
 
6.5
 
20 microns
 
22
 
19
 
14
 
40 microns
 
38
 
18
 
15
 
60 microns
 
60
 
35
 
20
 
100 Micron
 
100
 
75
 
45
Beta Ratio =
Upstream particle counts
Downstream particle counts