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3M 3MDA Firestop Collar for Metal Pipes, 3 hr, Fluted Deck, 16.5 x 6.3 in - Firestop Collars for Pipes
3MFirestop Collars for Pipes

3M 3MDA Firestop Collar for Metal Pipes, 3 hr, Fluted Deck, 16.5 x 6.3 in

The 3M Deck Adapter (MPN 3MDA) is a 3-hour-rated firestop collar for metal pipes in fluted deck applications. Measuring 16.5 inches overall length, 6.3 inches overall width, and 4 inches overall height, this metal…

SKU 3G-OTH-547539

Also listed as: 3 MDA · 3-MDA

Brand
3M
Item
3MDA Firestop Collar for Metal Pipes, 3 hr, Fluted Deck, 16.5 x 6.3 in
Part Number
3MDA
Category
Firestop Collars for Pipes
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

3M
Manufacturer Part Number
3MDA
Type
3 hr, Fluted Deck, Metal
Overall Lg
16.5 in
Overall Wd
6.3 in
Pipe Material Broad
Metal

Technical Documents

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3M Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The 3M Deck Adapter (MPN 3MDA) is a 3-hour-rated firestop collar for metal pipes in fluted deck applications. Measuring 16.5 inches overall length, 6.3 inches overall width, and 4 inches overall height, this metal adapter is designed for use with fluted metal deck assemblies. 3G Electric interprets your demand and sources this genuine 3M firestop solution across 14 industrial departments, with specialist depth in combustion, pumps, and controls to ensure you get the right answer.

Frequently Asked Questions

What is the 3M Deck Adapter used for?

The 3M Deck Adapter (MPN 3MDA) is a 3-hour-rated firestop collar for metal pipes in fluted deck assemblies. It seals penetrations in commercial and industrial buildings to maintain fire-resistance ratings, commonly used in HVAC, plumbing, and electrical riser applications.

What are the specifications of the 3M Deck Adapter?

The 3M Deck Adapter (MPN 3MDA) has an overall length of 16.5 in, overall width of 6.3 in, and overall height of 4 in. It is rated for 3-hour fire protection and is designed for metal pipes in fluted metal deck assemblies.

Where to buy the 3M Deck Adapter worldwide?

3G Electric supplies the genuine 3M Deck Adapter (MPN 3MDA) worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us to source this firestop collar for your fluted deck application.

How to install the 3M Deck Adapter?

Install the 3M Deck Adapter around a metal pipe penetrating a fluted metal deck. Secure it per the manufacturer's instructions, ensuring a tight seal against the deck surface. Always follow local firestop codes and use approved fasteners for the assembly.

Used in

Common applications for 3M
Electrical maintenance — 3M Super 33+ electrical tape for insulating splices and bundling wires in control circuits.
Mining cable repair — 3M molded resin pouch for coating cable jackets in mine and portable cable applications.
Utility cable splicing — 3M cold shrink splice kit rated for 15 kV for insulating and repairing power cables.
Industrial wire harnessing — 3M 2520 series varnished cotton cloth tape for abrasion resistance in wire harnessing.
Structural bonding — 3M DP8005 acrylic adhesive for bonding plastics, metals, and composites in assembly operations.
Cable protection — 3M heat shrink tubing for sealing and protecting electrical connections from moisture and abrasion.
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3M Products

3G Electric supplies 3M firestop collars for pipes. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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