Keystone Filter Bags & Filter Cartridges


Industrial Filter Cartridges

key_cartridgestd_1a.jpg (11616 bytes)All Polypropylene Filter Cartridges

These replacement filter cartridges feature the latest technology in filter media. Layers of melt-blown and spun-bonded polypropylenes combine to produce nominal retentions from 0.1 micron to 30 micron. Polypropylene filters feature popular end cap styles which fit most standard and sanitary style housings. Ideal as low cost membrane prefilters, these high efficiency filter cartridges serve a wide range of applications.

MATERIALS OF CONSTRUCTION*:
Filter Media: Polypropylene
Support Materials: Polypropylene
Thermal Bonded End Caps: Polypropylene

NOMINAL MICRON RATINGS: 0.1, 0.2, 0.45, 1.0, 3.0, 10.0, 30.0 Ratings derived from independent laboratory tests using latex bead suspensions and particle counter readings.

EFFECTIVE FILTRATION AREA: 4-1/2 square feet per layer per 10 inch length

DIMENSIONS: 2-3/4" or 2-1/2" OD x 1" ID Nominal 5", 9.75", 10", 19.5", 20", 29.25", 30", 39", 40" lengths

OPERATING CHARACTERISTICS: Maximum Differential Pressure = 60 psi at maximum recommended temperature of 140F. Change out recommended at 30 psid.

*The materials used are acceptable for potable and edible liquid contact according to FDA CFR Title 21.

key_cartridgestd_2a.jpg (13731 bytes)Microfiberglass Filter Cartridges

Keystone Microfiberglass Filter Cartridges — the lowest cost alternative for many filtration applications
These filter cartridges are designed to provide the most economical solution for a wide range of filtration problems. State of the art microfiberglass is layered with spun bonded polyester to produce highly efficient particulate removal with extremely low pressure drops. The pleated construction allows greater surface area than depth type cartridges which translates directly into longer life.

MATERIALS OF CONSTRUCTION:
Filter Media: Microfiberglass layered with spun bonded polyester;
50 micron is 100% polyester
Support Materials: Polypropylene
End Caps: Polypropylene

NOMINAL MICRON RATINGS:
0.1, 0.2, 0.45, 1.0, 3.0, 10.0, 30.0, 50.0 Ratings derived from independent laboratory tests using latex bead suspensions and particle counter readings.

EFFECTIVE FILTRATION AREA: 4-1/2 square feet per layer per 10 inch length

DIMENSIONS: 2-3/4" or 2-1/2" OD x 1" ID Nominal 5", 9.75", 10", 19.5", 20", 29.25", 30", 39", 40" lengths

OPERATING CHARACTERISTICS: To 75 psid at 68F  To 40 psid at 150F

Key_giant_n.jpg (8438 bytes)Giant Polypropylene Filter Cartridges with PVC End Caps

These polypropylene filter cartridges feature high quality polypropylene filter media combined with self-gasketing FDA grade PVC endcaps. Typical applications for these economical filter cartridges include food and beverage, water purification, bottled water and cosmetics.

MATERIALS OF CONSTRUCTION:
Filter Media: Polypropylene
Support Materials: Polypropylene
End Caps: Plastisol (self-gasketing PVC)

NOMINAL MICRON RATINGS: 0.45, 3.0, 10.0, 30.0 Ratings derived from independent laboratory tests using latex bead suspensions and particle counter readings.

EFFECTIVE FILTRATION AREA: 12 square feet per layer per 10 inch length

DIMENSIONS: 4-1/2" OD x 1" ID Nominal 10", 20" lengths

OPERATING CHARACTERISTICS: Maximum Differential Pressure = 60 psi at maximum recommended temperature of 140F. Change out recommended at 30 psid.

key_giant_q.jpg (9502 bytes)High Performance Cellulose / Polyester Filter Cartridges with PVC End Caps

*High flow rate, high dirt holding capacity and low pressure drop create optimal system operation

  • *Cellulose media supported by polypropylene components
  • *Three removal ratings
  • *Pleated configuration
  • *Compatible with a wide range of industrial fluids

MATERIALS OF CONSTRUCTION:
Filter Media: Cellulose/Microfiberglass Support Materials: Polypropylene
Netting: Clear Polypropylene Center Core: Polypropylene or Polyester (Optional)
End Caps: Plastisol (Self-gasketing PVC)

NOMINAL MICRON RATINGS:
2.0, 10.0, 20.0

EFFECTIVE FILTRATION AREA:
12 square feet per layer per 10 inch length

DIMENSIONS:
4-1/2" OD x 1" ID
Nominal 10", 20" lengths

OPERATING CHARACTERISTICS:
Maximum Differential Pressure=60 psi at maximum recommended
temperature of 125F. Change out recommended at 30 psid.

key_giant_o.jpg (9902 bytes)Activated Carbon Filter Cartridges
Wound or Carbon Briquette Filter Cartridges

Two different designs offer a choice in carbon filtration. The three micron nominal convolutedly wound cartridge features more finely divided carbon secured in a fibrous matrix for greater adsorptive efficiency at a low cost. The ten micron granular carbon cartridge features over eight ounces of highly activated carbon providing longer life and high efficiency in the removal of unpleasant tastes and odors and chemical contaminants.

MATERIALS OF CONSTRUCTION:
Filter Media: resin Impregnated Cellulose
3 Micron—Activated carbon embedded in a matrix of natural and synthetic fibers, layered with synthetic separating layer.
10 Micron— Polypropylene outer filtration layer and inner final filtration layer
Support Material: Polypropylene / End Caps: Plastisol (self-gasketing PVC) / Core and Outer Netting: Polypropylene

NOMINAL MICRON RATINGS:
Convolute Wound—3.0; Granular Filled—10.0

DIMENSIONS:
4-1/2" OD x 1" ID x Nominal 10" and 20" lengths

OPERATING CHARACTERISTICS:
Maximum Differential Pressure= 100 psi at maximum recommended temperature of 100F. Change out recommended at 30 psid

key_std_4b.jpg (9667 bytes)Giant Activated Carbon Block Filter Cartridges

Carbon block filter cartridges provide extended life while removing sediment, chlorine, taste, odor, and organic contaminants from water, aqueous solutions or suspensions and many organic solvents.
Blue Giant Series
Blue Giant carbon block filter cartridges flow in the radial (outside-to-inside) direction, providing increased flow at lower pressure drop than conventional granular activated carbon (g.a.c.) filters. These cartridges will not channel or bypass due to the extreme uniformity of their extruded carbon core and can be installed without prefiltration because of their high dirt holding capacity.

MATERIALS OF CONSTRUCTION:
Filter Media: Fine mesh and spun bonded granular carbon in high integrity bonded structure / End Caps: Polypropylene / Outer Netting: Polypropylene

NOMINAL MICRON RATINGS:
10.0

DIMENSIONS:
4-1/4" OD x 1" ID x Nominal 10" length

key_giant_4a.jpg (6494 bytes)Giant Polypropylene & Polyester Bag Filters

Keystone’s exclusive line of bag filters for our Giant housings have a unique seal ring that ensures the most efficient means of bag filtration. All bags are 100% polypropylene or polyester with plastisol (PVC) seal ring and are available in micron ratings from 1 to 200. Polyester bags are recommended for hot water/high pressure applications. Keystone bags are available in the compact 10" length – very adaptable to side stream testing applications – and the more versatile 20" double length. Other bags may also be used in our housings. Contact us at 1-800-822-1963 for details.
Change out bags at 20-25 psid.

MODEL
NUMBER

MATERIAL
PE=Polyester
PP=Polypropylene

MICRON
RATING

MAX IMUM
FLOW RATE
GPM (LPM)

FILTER
AREA
SQ. IN.

SHIPPING
WEIGHT
(OZ)

10" BAGS – to fit 10" housing with bag adapter

BAG1-10

PE/PP

1

40 (152)

109.9

3.0

BAG5-10

PE/PP

5

40 (152)

109.9

3.0

BAG10-10

PE/PP

1 0

40 (152)

109.9

3.0

BAG25- 10

PE/PP

2 5

40 (152)

109.9

3.0

BAG50-10

PE/PP

5 0

40 (152)

109.9

3.0

BAG100 -10

PE/PP

1 0 0

40 (152)

109.9

3.0

BAG200-10

PE/PP

2 0 0

40 (152)

109.9

3.0

20" BAGS – to fit 20" housing with bag adapter

BAG1-20

PE/PP

1

50 (190)

222.6

4.0

BAG5-20

PE/PP

5

50 (190)

222.6

4.0

BAG10-20

PE/PP

1 0

50 (190)

222.6

4.0

BAG25-20

PE/PP

2 5

50 (190)

222.6

4.0

BAG50-20

PE/PP

5 0

50 (190)

222.6

4.0

BAG100-20

PE/PP

1 0 0

50 (190)

222.6

4.0

BAG200-20

PE/PP

2 0 0

50 (190)

222.6

4.0

The maximum operating temperatures of Keystone polypropylene and polyester bags are 140F and 200F, respectively. When using Keystone polypropylene bags in Keystone GIANT talc polypropylene, styrene acrylonitrile (SAN) and/or natural polypropylene housings, the maximum operating temperature should not exceed 125F. 

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p: 513-860-3445     f: 513-860-4744

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