Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
ALLEGRO 9904-W Partial SAR Assembly for Welding - Allegro Partial SAR Assemblies
ALLEGROAllegro Partial SAR Assemblies

ALLEGRO 9904-W Partial SAR Assembly for Welding

The Allegro 9904-W Supplied Air Respirator is a partial SAR assembly designed for welding applications. It combines an OBAC-fitted helmet with a Stedprene neck cape and is powered by an ambient air pump, providing a…

SKU 3G-OTH-748814

Also listed as: 9904W · 9904 W

Brand
ALLEGRO
Item
9904-W Partial SAR Assembly for Welding
Part Number
9904-W
Category
Allegro Partial SAR Assemblies
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

ALLEGRO
Manufacturer Part Number
9904-W
Series
9904-W
Type
OBAC, Ambient Air Pump, Helmet, 9904-W
UNSPSC
46181703
Fittings
OBAC
For IDLH
No
Includes
Air Shield; Welding Helmet
Standards
ANSI Z87.1-2003; ANSI Z89.1 Type 1 Class G; NIOSH Approved; UL94 Listed
Air Source
Ambient Air Pump
Application
Welding
System Type
SAR System
Catalog Page
1613
Headgear Size
Universal
Headgear Type
Helmet
Brand and Series
Allegro 9904-W
Country of Origin
USA (subject to change)
Headgear Material
Plastic (Air Shield/Helmet); Polycarbonate (Lens); Stedprene (Neck Cape)
Includes Headgear
Yes
Includes Escape Bottle
No
Suspension Adjustment Type
Quick Release

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Allegro 9904-W Supplied Air Respirator is a partial SAR assembly designed for welding applications. It combines an OBAC-fitted helmet with a Stedprene neck cape and is powered by an ambient air pump, providing a complete respiratory protection solution.

Frequently Asked Questions

What is the Allegro 9904-W Supplied Air Respirator used for?

The Allegro 9904-W is a partial SAR assembly designed for welding applications. It provides respiratory protection by delivering breathable air from an ambient air pump through an OBAC-fitted helmet with a Stedprene neck cape, protecting the welder from fumes and particulates.

What are the specifications of the Allegro 9904-W?

The Allegro 9904-W series includes a helmet-type headgear with a Stedprene neck cape, OBAC fittings, and an ambient air pump as the air source. It is specifically designed for welding applications. The manufacturer part number is 9904-W.

Where to buy the Allegro 9904-W Supplied Air Respirator worldwide?

3G Electric supplies the Allegro 9904-W Supplied Air Respirator to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this welding respirator assembly.

How to maintain the Allegro 9904-W Supplied Air Respirator?

Regularly inspect the helmet, neck cape, and OBAC fittings for cracks or wear. Clean the Stedprene cape with mild soap and water. Check the ambient air pump and hoses for blockages or damage. Follow Allegro’s user manual for filter replacement and storage guidelines to ensure reliable protection.

Used in

Common applications for ALLEGRO
Industrial manufacturing — Allegro 9904 series supplied-air respirator with helmet and Stedprene neck cape for general respiratory protection.
Welding operations — Allegro 9904-W supplied-air respirator assembly with welding helmet and OBAC fittings for fume and particulate protection.
Confined space entry — Allegro 9815 series breathing air blower with EF couplers to supply low-pressure breathing air to respirator systems.
Respirator fit testing programs — Allegro Bitrex fit testing kit (MPN 2041) with nebulizers and solutions for qualitative fit testing.
SCBA storage in fire stations or industrial facilities — Allegro steel storage bracket (MPN 4111-06) with clip for secure mounting.
Temperature regulation in SAR systems — Allegro airline temperature controller (MPN 9990) with Hansen plug for adjusting supplied air temperature.
Not sure this is the right part? Photo-identify it→

ALLEGRO Products

3G Electric supplies ALLEGRO allegro partial sar assemblies. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

More from ALLEGRO

View all ALLEGRO parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first