Sffiltech

Call Directions Website Contact the business

Sffiltech Industrial filtration manufacturer in Shanghai since 2006 | Dust, liquid & air filtration.

30/08/2026

Pulse cleaning is running—but differential pressure keeps rising?

Moisture blinding may be turning the dust cake into a cement-like layer that will not release from the filter bag. Before increasing pulse pressure, check the dew-point margin, cold-air leaks, process moisture, compressed-air quality, and the differential-pressure trend.

Water-repellent or membrane finishes can help cake release, but they cannot cure condensation.

What rises first at your plant: differential pressure, fan load, or pulse frequency?

28/08/2026

Why do industrial dust filter bags fail too early?

Temperature is only one part of the diagnosis. Moisture, gas chemistry, abrasive dust, pulse-cleaning settings, installation, and media selection can combine to shorten service life.

Send us your operating conditions, bag dimensions, dust and gas composition, and current filter-media details for an application review.

https://www.sffiltech.com

Next: PPS vs P84 vs PTFE vs Nomex.

Visible dust after a filter-bag change does not automatically mean the new media is wrong.Before replacing the bags agai...
26/08/2026

Visible dust after a filter-bag change does not automatically mean the new media is wrong.

Before replacing the bags again, trace the possible leak path:

• Bag damage — inspect the top, body, seam and bottom for holes, tears, abrasion, stiffness or other damage; record the location and orientation of each failure
• Cuff or snap-band seal — confirm the bag is fully and evenly seated, with no kinked band, folded fabric, excess dust or material preventing a positive seal
• Tubesheet — clean the sealing surface and inspect it for abrasion, deformation, open holes, missing hardware or localized clean-side dust patterns
• Access-door gasket — check for loose or misaligned covers, damaged gaskets and uneven compression
• Housing and welds — inspect for cracks, worn metal and damaged welds that could bypass the filter media

Also compare the event with operating differential pressure, temperature excursions, sparks or embers, process changes and cleaning frequency. If leakage appears only when a particular pulse section fires, use that timing to narrow the inspection area.

When visual inspection is inconclusive, a qualified service provider may use an appropriate fluorescent leak-tracing procedure.

Before opening or servicing the collector, shut it down, isolate all energy sources and follow the approved site lockout/tagout and confined-space procedures.

For replacement filter-bag support, send the collector model, bag dimensions, media and finish, operating temperature, dust characteristics, differential-pressure history, failure photos and required quantity:
https://www.sffiltech.net

Replacement dust collector filter bags can look similar while differing in top construction, dimensions, bottom design, ...
22/08/2026

Replacement dust collector filter bags can look similar while differing in top construction, dimensions, bottom design, and cage fit.

Before ordering replacement bags, confirm five details:

• Top construction — snap band, fl**ge, ring, cuff, or another installation style
• Flat width or diameter — state how the bag was measured and whether the dimension is nominal or actual
• Overall length — measure from the specified reference point and note whether the top hardware is included
• Bottom style — disc, reinforced, wear-protected, or another customer-specific construction
• Cage and cell-plate fit — confirm cage diameter and length, venturi arrangement, cell-plate hole, plate thickness, and sealing interface

Do not rely on a photo, filter-media name, or an old purchase description alone. For replacement projects, provide the collector manufacturer and model, existing bag measurements, cage drawing or dimensions, cell-plate details, operating temperature, gas chemistry, dust characteristics, cleaning system, and required quantity.

The fabric filter bag should fit over the support cage in a conventional pulse-jet configuration. Incorrect dimensions can cause poor sealing, difficult installation, abrasion, bag movement, or premature failure.

Follow site isolation, lockout, and confined-space procedures before opening or entering a dust collector.

Discuss your dust filtration application:
https://www.sffiltech.com

Correct filter media is only part of a reliable baghouse installation. A snap-band filter bag can still bypass dust or b...
16/08/2026

Correct filter media is only part of a reliable baghouse installation. A snap-band filter bag can still bypass dust or be damaged early if it is not matched and seated correctly in the tubesheet.

Before startup, confirm five points:

• Tubesheet hole diameter — measure the actual clean hole and inspect for ovality, burrs, corrosion or damaged edges
• Snap-band size and shape — match the hole diameter, plate thickness and required ring profile
• Groove fully seated — verify even engagement around the full circumference, with no rolled fabric or pinched felt
• Seam alignment and bag verticality — confirm the bag hangs straight without twisting and the cage can be inserted without forcing
• Final inspection — check that every ring is firm, level and continuously sealed around 360°

Do not rely on a photo or nominal bag size alone. For replacement bags, provide the actual tubesheet dimensions, plate thickness, existing bag measurements, cage size and installation details.

Also confirm operating temperature, gas chemistry, moisture or condensation risk, dust characteristics, cleaning system and quantity.

Follow the site's isolation, lockout and confined-space procedures before opening or entering a dust collector.

Discuss your dust filtration application:
https://www.sffiltech.com

Dust filter bag media should not be selected from temperature alone.Before comparing polyester, polypropylene, aramid, P...
09/08/2026

Dust filter bag media should not be selected from temperature alone.

Before comparing polyester, polypropylene, aramid, PPS, PTFE or other options, confirm five operating conditions:

• Continuous and peak temperature — include startup, shutdown and upset periods
• Gas chemistry — identify acids, alkalis, oxidizing components and concentration ranges
• Moisture and condensation — review humidity, dew-point risk and cold spots
• Abrasion and dust loading — consider particle hardness, concentration, inlet distribution and velocity
• Cleaning system and emissions target — confirm pulse-jet, reverse-air or shaker method, cleaning intensity, required efficiency and finish

The correct choice may also depend on dimensional stability, hydrolysis or oxidation resistance, surface treatment, construction and supplier data. Validate actual process data and operating history before final selection; one material name or maximum temperature number is not enough.

Discuss your dust filtration application:
https://www.sffiltech.com

Baghouse differential pressure is most useful as a trend—not as one isolated number.Five patterns worth reviewing:• Grad...
05/08/2026

Baghouse differential pressure is most useful as a trend—not as one isolated number.

Five patterns worth reviewing:

• Gradual rise — check dust loading, cleaning effectiveness, airflow and possible blinding
• Sudden rise — investigate process or airflow changes, blockage, moisture or dust-loading events
• Sudden drop — inspect for lower airflow, leakage, bag damage or a measurement problem
• Unstable pattern — compare pulse sequence, production changes, fan/damper position and sensor condition
• After-cleaning baseline — track whether differential pressure returns to a similar level after each cleaning cycle

Differential pressure is a system signal, not a filter-bag-only diagnosis. Compare the trend with airflow, temperature, moisture, production rate, cleaning events and maintenance history before deciding on the cause.

Discuss your dust filtration application:
https://www.sffiltech.com

Filter bag life can be shortened before the baghouse even starts if the bag and cage are not matched correctly.Before in...
01/08/2026

Filter bag life can be shortened before the baghouse even starts if the bag and cage are not matched correctly.

Before installation, confirm:
• Bag diameter or flat width versus cage diameter
• Bag length versus cage length and tube-sheet position
• Smooth cage wires and welds — no burrs, sharp edges or corrosion
• Snap-band, venturi and tube-sheet compatibility
• Cage straightness and alignment

A bent cage, rough weld or incorrect fit can create abrasion, unsupported movement, sealing problems or stress on the bag. Photos and dimensions of both the old bag and cage make replacement review more accurate.

Discuss your dust filter bag requirement:
https://www.sffiltech.com/

28/01/2026

Inside our filter bag sewing workshop.

This is where industrial dust filter bags are manufactured with controlled processes, experienced workers, and consistent quality standards.

From cutting and sewing to inspection, every step is focused on durability and performance for dust collection systems worldwide.

08/01/2026

Filter bag manufacturing & shipping

This is how industrial filter bags are produced, packed, and prepared for global delivery.

✔ Custom sizes & materials
✔ Stable production capacity
✔ OEM & bulk supply
✔ Worldwide shipping

We support long-term partners in industrial filtration projects.

📩 Contact us for technical details & quotation.




Address

Room 401, Building 33, Liando U Valley, No. 5355 Beisong Highway, Songjiang District
Shanghai
201611

Opening Hours

Monday 09:00 - 18:00
Tuesday 09:00 - 18:00
Wednesday 09:00 - 18:00
Thursday 09:00 - 18:00
Friday 09:00 - 18:00

Telephone

+8613045620006

Website

Alerts

Be the first to know and let us send you an email when Sffiltech posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Sffiltech:

Shortcuts

Share

Category