Duct Damper for Fume Hood

Quick Answer: A high-density polypropylene duct damper designed to help regulate exhaust airflow in laboratory and pharmaceutical fume hoods — actual safe face velocity depends on the complete fume hood system, not the damper alone, and should be periodically verified.

Price: This listing does not currently show a published price on stemaids.com — contact STEMAids directly for an indicative quotation.

Product Description

This duct damper is designed to help regulate exhaust airflow within laboratory and pharmaceutical fume hood ductwork, constructed from high-density polypropylene for good chemical resistance to fume-hood vapors. Adjusting exhaust volume through the damper is one factor in maintaining proper face velocity at the hood opening, but actual safe face velocity depends on the fume hood as a complete system — sash height, exhaust fan performance, ductwork condition, and damper setting all work together. Face velocity should be periodically measured and verified (for example, per your facility’s fume hood testing protocol, such as ANSI/AIHA Z9.5 or an equivalent local standard) rather than assumed from the damper specification alone, since inadequate containment can expose users to hazardous vapors.

Specifications

Applications / Uses

• Regulating exhaust airflow within fume hood ductwork
• Supporting proper face velocity at the fume hood opening as part of the complete hood system
• General ductwork component for laboratory and pharmaceutical fume hoods

Care & Maintenance

• Have face velocity measured and verified periodically by a qualified technician, per your facility’s fume hood testing protocol
• Inspect the damper mechanism periodically for smooth operation and any signs of chemical degradation
• Do not rely on the damper setting alone to guarantee safe containment — the full hood system must be verified
• Report any change in exhaust performance or unusual odors immediately per your facility’s safety procedures

Why Choose STEMAids

STEMAids, a brand of Eduscope Smart Learning Solutions Private Limited, supplies general laboratory equipment and teaching aids to schools, colleges, and training institutes across India, with export and bulk tender support available. Explore related products in our General Lab Products category, including our Colony Counter. For bulk or institutional orders, visit our tenders page or contact us at 9311411822.

Frequently Asked Questions

Does this damper guarantee safe face velocity?

No. Safe face velocity depends on the complete fume hood system — sash height, exhaust fan, ductwork, and damper setting together — and should be periodically measured and verified, not assumed from the damper alone.

What testing standard should be used to verify fume hood performance?

This is not specified in the listing. A common reference is ANSI/AIHA Z9.5 or an equivalent local fume hood testing standard — confirm the applicable requirement for your facility.

What chemicals is this damper resistant to?

High-density polypropylene offers good general chemical resistance, though specific compatibility is not itemized in this listing — confirm with STEMAids for your specific application.

How is this damper installed?

Installation details are not specified in this listing. Confirm fitment with your specific fume hood ductwork with STEMAids.

What is the indicative price for this product?

This listing does not currently show a published price on stemaids.com — contact STEMAids directly for an indicative quotation.