NB Series

Bags for Liquid Filtration

Hall Pyke’s filter bag offering includes polypropylene and polyester felt and nylon monofilament materials in a wide range of grades (removal ratings).

Applications

3M CUNO™ liquid bag filters are appropriate for use in a wide range of markets and applications, including:

  • Industrial
  • Coatings
  • Chemicals
  • Hydrocarbon & Refining
  • Food & Beverage
  • Electronics
  • Pharmaceutical & Healthcare

Felt Bag Filter Element Specifications

Dimension Felt Filter Bags
#1 Size #2 Size
Nominal Removal Ratings (microns) 1, 5, 10, 25, 50, 100, and 200
Filter Diameter (cm/inches) 17.8 / 7
Filter Length (cm/inches) 43.2 / 17 81.3 / 32

Operating Parameters

Operating conditions Polypropylene Polyester
#1 Size #2 Size #1 Size #2 Size
Maximum Operating Temperature 82°C / 180°F 149°C / 300°F
Maximum Recommended Flow Rate* 340 lpm 681 lpm 340 lpm 681 lpm
90 gpm 180 gpm 90 gpm 180 gpm
Maximum Forward Differential Pressure 2.4 bar @ 20°C (35 psid @ 68°F )
Recommended Changeout Differential Pressure 1.4 bar (20 psid)
CFR Compliant All polypropylene component materials are listed for food contact per 21 CFR 177.1520
* For aqueous solutions based on maintaining clean pressure drop (media only) of ≤ 0.14 bar (2 psid).

Features

  • Controlled media specifications
  • Welded side seams and thermal treated exterior surfaces

Benefits

  • Predictable performance for desired filter effluent quality
  • Manufacturing processes do not use silicone or adhesives
  • Control of fluid bypass through proper sealing into most filter bag manufacturer’s housings
  • Ergonomically designed handle for ease of bag removal
  • Grade and lot information etched on collar for identification and traceability
  • Control of fiber migration and subsequent downstream fluid contamination

For some liquid bag applications, the use of nylon monofilament (NMO) materials represents a better option than conventional felt materials. These include applications benefitting from the following features.

NMO Specifications & Operating Conditions

Dimensions Nylon Monofilament Bag Filters
#1 Size #2 Size
Filter Diameter (cm/inches) 25, 50, 100, 150, 200, 250, 400, 600, 800, and 1200
Filter Diameter (cm/inches) 17.8 / 7
Maximum Recommended Flow Rate* 340 lpm 90 gpm
681 lpm 180 gpm
Maximum Operating Temperature 149°C / 300°F
Maximum Forward Differential Pressure 2.4 bar @ 20°C (35 psid @ 68°F)
Recommended Change-out Differential Pressure 1.4 bar (20 psid)
* For aqueous solutions based on maintaining clean pressure drop (media only) of ≤ 0.14 bar (2 psid).

Features

  • Uniform pore sizing
  • Continuous Fiber Construction
  • High Temperature/Alkali Compatibility
  • Available in coarser grades (> 200μm)

Benefits

  • Allows desired undersized particles to pass through (metallic paints...)
  • Effective removal of oversized contaminants
  • High fiber strength reducing the likelihood of bag rupture and downstream fluid contamination
  • Appropriate choice for filtration of high temperature cleaning solutions
  • Cost effective filtration solution for those applications requiring removal of coarse particles only

Series NB Polypropylene & Polyester Felt Filter Bag Ordering Guide

Filter Designation Nominal Removal Rating Material (Media/Plastic Components) Bag Size Collar Type
NB - Nominal Bag 0001 - 1 μm
0005 - 5 μm
0010 - 10 μm
0025 - 25 μm
0050 - 50 μm
0100 - 100 μm
0200 - 200 μm
PPS - Polypropylene
PES – Polyester
1 - Size #1
2 - Size #2
C - Plastic Collar

Series NB Nylon Monofilament Filter Bag Ordering Guide

Filter Designation Nominal Removal Rating Material (Media/Plastic Components) Bag Size Collar Type
NB - Nominal Bag 0025 - 25 μm
0050 - 50 μm
0100 - 100 μm
0150 - 150 μm
0200 - 200 μm
0250 - 250 μm
0400 - 400 μm
0600 - 600 μm
0800 - 800 μm
1200 - 1200 μm
NYS - Nylon Monofilament 1 - Size #1
2 - Size #2
R - Metal Ring
Product Attributes
RR 1 to 200μ nominal
MT60 to 149 ̊C
MoC Polypropylene, Polyester
MDP 2.4 bar @20 ̊C
Brand 3M
Q FDA compliant to 21CFR177-1520
RR Retention Rating
MT Maximum temperature recommended of a working product in degrees centigrade
MoC Primary material of construction
MoC Primary material of construction
MP Maximum working pressure of housing in bar
Brand Manufacturing brand name supplying the product
FE Filter efficiency
Q Quality assurances and certificates validating this product