Review liquid type, temperature, material compatibility, micron rating, bag size, ring style, housing fit, and quantity before requesting a liquid filter bag quote.
Original selection flowchart for technical reference. This technical illustration is for selection support only.Filter housing reference image used to show why bag size and housing compatibility should be confirmed before quotation.
Short Intro
Selecting a liquid filter bag is not only a matter of choosing a micron rating. The correct filter bag depends on the liquid, solids, operating temperature, chemical exposure, flow rate, housing design, sealing style, and filtration goal.
This guide explains the main factors to review before requesting a filter bag quote. If you already have specifications, photos, or an existing sample, you can send them through Go2Filter for RFQ review:
Start by describing what the filter bag needs to remove.
Useful questions include:
What liquid is being filtered?
What solids or contaminants are present?
Are the solids hard, soft, sticky, fibrous, or gelatinous?
Is the filtration batch or continuous?
Is the goal clarification, pre-filtration, product recovery, or equipment protection?
The more specific the application information, the easier it is to review the filter bag material and micron rating.
Step 2: Review Operating Temperature
Operating temperature affects material selection. A filter bag that performs in a room-temperature process may not be suitable for a heated liquid stream.
When requesting a quote, provide:
Normal operating temperature
Maximum temperature
Whether temperature spikes occur
Cleaning or washdown temperature if relevant
Do not assume a material is suitable based only on product name. Temperature, liquid chemistry, and exposure time should be reviewed together.
Step 3: Check Chemical Compatibility
Material compatibility is one of the most important selection factors. Polypropylene, polyester, and nylon mesh each behave differently under chemical exposure.
Information to provide:
Liquid name or chemistry
pH range if known
Solvent, oil, acid, alkali, or additive exposure
Batch time or continuous exposure
Cleaning chemicals if used
Compatibility should be reviewed before use, especially for chemical processing, regulated applications, high-temperature liquids, or aggressive fluids.
Step 4: Choose the Micron Rating
The micron rating should match the filtration goal. A finer micron rating may capture smaller particles but can increase pressure drop or reduce service life if solids loading is high.
Consider:
Particle size
Desired clarity
Downstream equipment protection
Solids concentration
Flow rate
Acceptable pressure drop
Previous filter performance
If you do not know the exact micron rating, describe the problem you are trying to solve and provide any current filter information.
Filter bags must fit the housing and support basket. Common bag sizes are often referred to by numbers such as size #1 or size #2, but dimensions should still be confirmed.
Useful details:
Bag diameter
Bag length
Existing size number if known
Housing model
Basket dimensions
Photos of existing bag and housing
Do not rely only on size labels. Some housings or applications may require specific ring or collar designs.
Step 6: Confirm Ring Type or Collar Style
The top seal affects whether the bag seats correctly in the housing.
Common quote details:
Plastic ring or metal ring
Sewn ring or molded collar
Handle style if required
Existing seal shape
Photos of the top opening and ring
A filter bag that is the correct length but wrong ring type may not seal properly.
Step 7: Match the Bag to the Housing
Housing compatibility matters because the bag must fit the basket, seal at the top, and handle the process conditions.
Provide:
Housing type
Single-bag or multi-bag housing
Connection size
Flow rate
Operating pressure
Basket condition
Current filter bag sample or drawing
If the housing is unknown, send photos of the housing nameplate, basket, lid, and existing bag.
Step 8: Estimate Quantity and Changeout Frequency
Quantity is needed for quotation and planning. Changeout frequency can also help evaluate whether the current micron rating or material is suitable.
Share:
Initial quantity required
Expected reorder quantity
Current service life
Whether bags blind quickly or tear
Whether solids loading changes by batch
Common Specifications to Prepare
Specification
Why It Matters
Material
Affects compatibility, temperature range, and filtration behavior
Micron rating
Affects particle capture and pressure drop
Bag size
Must fit housing and basket
Ring/collar type
Determines sealing and fit
Quantity
Needed for quotation
Application
Helps review suitability
Temperature
Affects material choice
Flow/pressure
Helps evaluate housing and bag performance
Current model/photos
Reduces risk of fit mismatch
Application Examples
Liquid filter bags may be considered for:
Industrial process water
Chemical processing
Paints, coatings, and resins
Food and beverage processing, subject to material and compliance review
Metalworking fluids
Pre-filtration before cartridges or membranes
Batch filtration where bag changeout is acceptable
Application examples are not guarantees of suitability. Actual operating conditions should always be reviewed.
Provide the liquid type, temperature, application, and existing sample information. Material selection can then be reviewed based on the available details.
Should I choose the finest micron rating possible?
Not always. A very fine micron rating may increase pressure drop or shorten service life if solids loading is high. Choose based on the filtration goal and process conditions.
Can photos help with a quote?
Yes. Photos of the existing bag, ring, housing, basket, and nameplate can help confirm size and fit.
Is a filter bag always better than a cartridge?
No. Filter bags and cartridges serve different needs. Bags are often useful for higher solids loading and simple changeout, while cartridges may offer different surface area, construction, or filtration characteristics.
Can I request a quote without a drawing?
Yes. A drawing is helpful but not always required. Provide dimensions, material, micron rating, quantity, application, and photos if available.
Request a Quote on Go2Filter
For pricing, availability, shipping, and lead time, send your size, material, micron rating, quantity, and application details for review.