Direct answer: A custom filter bag support basket should be quoted from the housing and bag geometry, not from “Size 1” or “Size 2” alone. Submit the housing model/drawing, bag finished dimensions and ring, basket outside diameter and length, collar-seat geometry, bottom profile, handle or lifting detail, alloy, perforated or mesh construction, reinforcement, differential-pressure duty, surface finish, quantity and first-article inspection requirements.
Replacing a missing or damaged support basket?
Send the housing nameplate, internal photos, old basket, bag sample, critical dimensions, liquid chemistry, pressure/temperature and quantity. INCE can review the basket and matching bag as one fit-up problem.
What does the support basket do?
The basket supports the flexible bag against flow and differential pressure. It should allow liquid to pass without sharp edges or unsupported zones that can damage the bag. The basket is not the primary micron-rated element; the installed filter bag provides the specified filtration rating.
Parker’s public process-filtration catalog identifies a 316 stainless bag basket for specific housing and bag configurations, illustrating that basket material, media type, bag length and housing retrofit details are linked purchasing fields. That does not make one manufacturer’s basket universally interchangeable.
Technical reference: Parker process filtration catalog — bag filter basket section. The referenced product data supports the selection framework; it does not imply that INCE products are identical to another manufacturer’s products.
Dimensions that should appear on the drawing
| Drawing field | Verification point |
|---|---|
| Basket OD and overall length | Check housing bore, bottom clearance and bag finished dimensions. |
| Top collar/seat | Record flange OD, thickness, step, locating features and relationship to the bag ring. |
| Bottom profile | Flat, radiused or formed bottom must match the vessel and avoid bag stress concentrations. |
| Open construction | Specify perforated plate, woven mesh or another structure; provide hole/opening and support details where controlled. |
| Reinforcement and welds | Show longitudinal supports, rings, seams, handles and required weld treatment. |
| Material and finish | State alloy, pickling/passivation or finish requirement only when the project requires it. |
| Tolerances | Identify which diameters, lengths, roundness and seat dimensions are critical to fit. |
Match the basket, bag and housing together
Use the industrial filter bag specification and the single bag housing drawing together. Bag length, diameter, ring and seam affect fit. If the project uses a multi bag housing, also identify basket position and whether all baskets are interchangeable.
INCE also supplies stainless steel filter mesh and custom mesh components. A mesh-lined or fabricated basket still requires an engineering drawing and review of chemistry, mechanical load and cleaning.
First-article inspection points
- Material and construction match the approved drawing.
- Critical OD, length, collar and bottom dimensions are measured.
- Edges and weld areas are checked for burrs or protrusions that could damage the bag.
- The basket seats fully and can be removed with the available clearance.
- The approved bag fits without excessive slack, stretching or collar interference.
- Labels and packing preserve part identity for future replacement orders.
Avoid a basket that fits the bag but not the vessel
Provide housing model/nameplate, old basket drawing or sample, bag dimensions/ring, liquid, pressure, temperature, material, quantity, inspection requirement and destination.
Frequently Asked Questions
Can a Size 2 basket be ordered from the bag size alone?
No. Housing manufacturers and designs can use different seats, clearances and bottom geometry. The installed housing and old basket dimensions must be verified.
Does the support basket determine filtration micron rating?
No. The basket supports the filter bag. The bag media and construction provide the specified filtration rating.
Should a replacement basket be supplied with a matching bag sample?
Whenever possible, yes. Reviewing the bag ring, finished diameter and length together reduces fit and sealing errors.
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