Name: Nomex Cloth Aramid Filter Bag
Brand: Sffiltech

product detail

Nomex / Aramid Filter Bag for Baghouse Dust Collection

A Nomex / aramid filter bag is a sewn dust collector filter bag made with aramid needle felt. It is commonly reviewed for selected high-temperature baghouse dust collection systems where standard polyester filter bags may not be suitable for the operating temperature or process conditions.

Nomex and other aramid filter bag materials should not be selected by material name alone. The final media choice depends on the normal working temperature, peak temperature, gas chemistry, moisture level, oxygen level, dust type, abrasion risk, spark risk, pulse-cleaning method, cage condition and required filtration target.

Aramid filter bags may be used in asphalt mixing plants, cement plants, metallurgy, aluminum and non-ferrous metal dust collection, boiler dust collection and other selected high-temperature dry dust applications. For moisture, hydrolysis, acid gas, alkaline gas or strong oxidation conditions, the working data should be reviewed carefully before confirming Nomex/aramid as the suitable media.

SFFILTECH can customize aramid filter bags by diameter, length, top construction, bottom construction, snap band or ring style, sewing details and surface treatment. To prepare an accurate quotation, please send bag size, cage size, tube sheet hole size, working temperature, peak temperature, gas composition, dust type, moisture condition, cleaning method and required quantity.

Specifications

Nomex / Aramid Filter Bag Specification Review

Item	Specification / Review Point
Product name	Nomex / aramid dust collector filter bag
Filter media	Aramid needle felt; exact grade to be confirmed by project requirement
Product form	Sewn filter bag for baghouse dust collection
Bag diameter	Customized according to tube sheet and cage size
Bag length	Customized according to baghouse design
Top construction	Snap band, ring, flange or customized
Bottom construction	Disc bottom, reinforced bottom or customized
Surface treatment	Selected according to dust, moisture, oil, static, abrasion and gas conditions
Working temperature	Confirm by aramid grade, scrim, treatment and actual operating conditions before final selection
Peak temperature	Confirm from process data and material configuration before quotation
Required buyer data	Temperature profile, gas composition, dust type, moisture level, acid/alkali gas, oxidation risk, cleaning method, cage size and quantity

Values such as GSM, thickness, air permeability, continuous temperature and peak temperature should be confirmed with the required media grade and working condition before final quotation.

Application

Applications of Nomex / Aramid Filter Bags

Nomex / aramid filter bags are reviewed for selected high-temperature dust collection systems. The correct choice depends on the real process data, not only the industry name.

Asphalt mixing plant baghouse: review normal temperature, peak temperature, oil vapor, moisture, spark risk and dust characteristics.
Cement plant dust collection: review kiln, mill or material-handling position, dust load, alkali content, temperature fluctuation and cleaning cycle.
Steel and metallurgy dust collection: review abrasive dust, spark risk, temperature peaks, cage wear and pulse-cleaning conditions.
Aluminum and non-ferrous metal dust collection: review dust chemistry, temperature profile, moisture and chemical exposure before selecting media.
Boiler and high-temperature process dust collection: review gas composition, oxygen level, acid/alkali gas, moisture and dust behavior.

For some moisture, hydrolysis, strong acid/alkali, oxidation or highly corrosive conditions, PPS, PTFE, P84, fiberglass or composite media may need to be compared with aramid. Send your operating data for material review before ordering.

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FAQ

Nomex / Aramid Filter Bag FAQ and RFQ Checklist

What is a Nomex / aramid filter bag?

A Nomex / aramid filter bag is a sewn dust collector filter bag made with aramid needle felt. It is used for selected high-temperature baghouse dust collection applications after the working condition is reviewed.

When should I choose Nomex instead of polyester?

Nomex / aramid may be reviewed when the working temperature or process condition is beyond the suitable range of standard polyester filter bags. Final selection also depends on gas chemistry, moisture, oxygen level, dust type, abrasion and cleaning method.

What temperature can a Nomex filter bag handle?

The allowable continuous and peak temperature should be confirmed according to the aramid media grade, scrim, surface treatment and actual working conditions. Please provide both normal working temperature and peak temperature for review.

Is Nomex suitable for moisture, acid or alkaline gas?

Nomex / aramid can be used in selected high-temperature dust collection conditions, but moisture, hydrolysis, acid gas, alkaline gas and oxidation risk must be checked. In some conditions, PPS, PTFE, P84, fiberglass or another media may be more suitable.

Can you customize the bag diameter and length?

Yes. Aramid filter bags can be customized according to baghouse design, tube sheet hole, cage size, top construction, bottom construction and sealing requirements.

Can the bags fit existing cages?

They can usually be designed for existing cages, but cage diameter, cage length, number of wires, venturi, top cap and tube sheet fit should be checked before production.

What information is needed for a quotation?

Please provide bag diameter, bag length, top construction, bottom construction, snap band or ring style, cage size, tube sheet hole size, operating temperature, peak temperature, dust type, gas composition, moisture level, acid or alkaline gas, spark or abrasion risk, cleaning method, quantity, and photos, drawings or samples if available.