Bag filter is a kind of pressure type filter equipment, which composed mainly by filter cylinder,filtering cover and quick opening mechanism, stainless steel filter bag and strengthen mesh. Fluid flows into filter bag that installed in the strengthen mesh, and impurity and particle were filtered by the filter bag. The qualified fluid can be got. Filter bags are easy to replace and no consume in this process.
Types of stainers/industrial strainers
Davit Type Multi Bag Filter Housing
Multi bag filter housing is designed to filtrate liquid more than 80/h flow rate. The liquid flows from side through upper cover dome into filter bag. Special locking device allows no bypass of liquid. CSM standard BFM housing ranges 2-24 installation of bag filters. However, special specification is available on customer's request.
Spring Lid Type Multi Bag Filter Housing
Open and close by spring allows the installation space minimum;
Locating outlet on the bottom side of housing allows the total height 30~50cm lower than standard type housing, thus no foothold or ladder in necessary when replace filters;
Minimizing the number of eye bolts reduces the time for filter replacement.
Features
Low pressure drops
Permanently-piped housings
Covers are O-ring sealed
Carbon steel or stainless steel (304 or 316) and aluminum construction for housings
Easy to clean!
Adjustable-height legs, standard
O-Ring seals: Buna N, EPR, Viton, teflon
Duplex unites are available
Pipe sizes 3/4 thru 4-inch, NPT or flanged
Two basket depths: 15 or 30 inches (nominal)
U-ideal Instrument filter-strainer Option
Sanitary connections
Different outlet connections
Extra-length legs
Liquid displacers for easier servicing
Sanitary connections
Different outlet connections
Extra-length legs
Liquid displacers for easier servicing
Q & A
1.What is the product that needs to be filtered?
Obtain all the details of the liquid/solid composition. You need to confirm the chemical compatibility to ensure the proper material is used for the bag, retainer type, and the housing for the filter bags.
2. What is the viscosity of the product to be filtered which is made in China Tianjin U-ideal Co., Ltd?
Use a flow rate chart to find out the optimum operating parameters.
3. What is the pH level in order to choose the proper material for the filtration system?
Is the product an acid with a pH of 1-7 or is it Alkaline 7-14?
4. What type of solids does the product contain?
Are the solids crystalline or gelatinous? Crystalline solids can form a permeable layer on the filter media and gelatinous solids can form an impermeable layer that will cause blinding off of the filter media.
5. What is the density of the solids?
What is the PPM (parts per million) of the solids?
6. What is the range of particle size? What size does the customer want to remove and at what efficiency?
The range of particulate size is important in determining which micron rating your filter media should be? Filter bags can be made with nominally rated material or with high efficiency material.
7. What is the flow rate of the product? The flow rate is critical information required when determining the size and number of bags required.
8. Is it a continuous or batch process?
This is important in order to determine the filter bag consumption.
9. What is the operating pressure of the system? At what minimum and maximum potential pressure is the system designed to run?
10. What is the acceptable pressure required? Filter bag differential pressure capacity is 20-25 psi. What is the temperature of the product being filtered? Temperature has an impact on the viscosity, the filter media and the O-rings. The temperature can even affect the corrosion rate of the housing.
filter mesh material Compatibility
| Medias |
Meineral
Acids |
Organic Acids |
Alkalies |
Oxidizing Acids |
Animal Vegetable Petro-Oils |
Organic Solvents |
Micro Organisms |
| Polyester |
Good |
Good |
Good |
Good |
Excellent |
Excellent |
Excellent |
| Polypropylene |
Good |
Excellent |
Good |
Fair |
Excellent |
Good |
Excellent |
| Nomex |
Fair |
Fair |
Good |
Poor |
Excellent |
Excellent |
Excellent |
| Nylon |
Fair |
Fair |
Good |
Poor |
Excellent |
Excellent |
Excellent |
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