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Bag Filtration Sizing & Application Guide

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HOW TO SELECT A FILTER BAG ?
Our bag filtration systems are widely used for the reduction of sediment from industrial and food applications due to their high flow rate capability, easy maintenance, and rugged design. Siga Filtration can offer filter bags for general particulate removal and high-efficiency removal of particulates. For high flow rate applications, Siga Filtration can offer multi-bag filter housings that can handle flow rates of up to 400 m3/h. All standard filter bags are supplied with integrated handles for easy removal from filter housings. Filter bags are available with removal ratings from 0.5 – 1800 µm.
 
FILTER SELECTION FOR BAG FILTRATION
acuraBag filter bags in Polypropylene, Polyester, or Nylon mesh
BREWBag food grade filter bags for food & beverage applications. 
acuraBasket – Stainless steel mesh lined baskets that are reusable and cleanable. 
acuraPleat High flow and high-efficiency large diameter elements for applications that require a higher particulate removal efficiency or a larger surface area for high flow rates/low differential pressure. 
 
 
FILTER BAG SELECTION BY APPLICATION
Removal of coarse & fine particulate, sediment removal, carbon fines, resin fines in all types of industrial applications. Water, chemicals, food & beverage.
 
Prefiltration to protect downstream equipment (valves, heat exchangers, sensors)or to increase the life of fine filters. 
  
Straining applications. This can be done with Nylon mesh bags or with reusable Stainless Steel mesh baskets
 
Food  & beverage applications. Beer, honey, kombucha, specialty teas and water for food production and other alcoholic/non alcoholic beverages. 
 
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Filtration of paints to remove paint skin, agglomerates and particulates. 
 
Sidestream filtration in the HVAC industry – CHW, LTHW, MTHW circuits. Removal of sediment, rust, and suspended calcium deposits.
 
 
WHICH FILTER BAG MATERIAL TO USE? 
Polypropylene or Polyester felt for general reduction of particulates. Available micron ratings 1, 5, 10, 25, 50, 100, 200
Nylon mesh for removing particulates of a specific size or straining applications. Available micron ratings 1, 5, 25, 50, 100, 200, 400, 600, 800, 1000, 1200
 
BAG FILTER FLOW RATES
Flow rates depend on many factors like application, particulate concentration, micron rating, and viscosity. A general guide to flow rates is provided below for water with 10 micron felt type filter bag.
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Size 1 bags – 20 m3/h
Size 2 bags – 40 m3/h
Size 3 bags – 6 m3/h
Size 4 bags – 12 m3/h
 
BAG FILTER HOUSING SELECTION
Model: ALSI MINI – Compact
Filter grade: Industrial
Size: Bag size 3 or 4 
Bag Diameter: 4″
Max. flow rate: 12 m3/h
Use with: acuraBag filter bags or acuraPleat high flow elements
 
Model: BFOS
Filter grade: Industrial
Size: Bag size 1 or 2 
Bag Diameter: 7″
Max. flow rate: 40 m3/h
Use with: acuraBasket SS mesh basket,  acuraBag filter bags or acuraPleat high flow elements
 
Model: 2BFOS2
Filter grade: Industrial
Size: Bag size 2 
Bag Diameter: 7″
Max. flow rate: 60 m3/h
Use with: acuraBasket SS mesh basket,  acuraBag filter bags or acuraPleat high flow elements

 

Model: 4, 6, 8 or 12BFOS
Filter grade: Industrial
Size: Bag size 2 
Bag Diameter: 7″
Max. flow rate: 400 m3/h
Use with: acuraBasket SS mesh basket,  acuraBag filter bags or acuraPleat high flow elements

 

Model: FBH MINI – Compact
Filter grade: Food & Bev
Size: Bag size 3 or 4 
Bag Diameter: 4″
Max. flow rate: 12 m3/h
Use with: Mesh basket or BREWBag food grade filter bags
 

 

Model: FBH – Standard
Filter grade: Food & Bev
Size: Bag size 1 or 2 
Bag Diameter: 7″
Max. flow rate: 40 m3/h
Use with: Mesh basket or BREWBag food grade filter bags
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