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Allegro 9821 Ambient Air Pump with Schrader Fittings - Allegro SAR Compressors & Ambient Air Pumps
ALLEGROAllegro SAR Compressors & Ambient Air Pumps

Allegro 9821 Ambient Air Pump with Schrader Fittings

The Allegro 9821 Ambient Air Pump (SKU 3G-OTH-691950) delivers 0 to 10 cfm at 0 to 15 psi, powered by a 3/4 hp motor and equipped with Schrader fittings to support up to two respirators. This SAR compressor and…

SKU 3G-OTH-691950

Also listed as: 9821WSCHRADER · 9821 W SCHRADER · 9821-W-SCHRADER

Brand
ALLEGRO
Item
9821 Ambient Air Pump with Schrader Fittings
Part Number
9821 W/SCHRADER
Category
Allegro SAR Compressors & Ambient Air Pumps
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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.

Technical Specifications

ALLEGRO
Manufacturer Part Number
9821 W/SCHRADER
Type
0 to 15 psi, Schrader, Allegro 9821
Air Flow
0 to 10 cfm
Fittings
Schrader
Horsepower
3/4 hp
Respirators
2
Brand and Series
Allegro 9821
Operating Pressure
0 to 15 psi

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

Product Description

The Allegro 9821 Ambient Air Pump (SKU 3G-OTH-691950) delivers 0 to 10 cfm at 0 to 15 psi, powered by a 3/4 hp motor and equipped with Schrader fittings to support up to two respirators. This SAR compressor and ambient air pump is part of the Allegro 9821 series, specified by manufacturer part number 9821 W/SCHRADER.

Frequently Asked Questions

What is the Allegro 9821 ambient air pump used for?

The Allegro 9821 ambient air pump supplies breathable air to up to two respirators in industrial environments. It delivers 0 to 10 cfm at 0 to 15 psi, powered by a 3/4 hp motor with Schrader fittings, making it suitable for painting, chemical handling, and confined-space work.

What are the specifications of the Allegro 9821 ambient air pump?

The Allegro 9821 ambient air pump (MPN 9821 W/SCHRADER) provides 0 to 10 cfm airflow at 0 to 15 psi operating pressure. It features a 3/4 hp motor, Schrader fittings, and supports up to two respirators. It is part of the Allegro 9821 series.

Where to buy the Allegro 9821 ambient air pump worldwide?

3G Electric supplies the Allegro 9821 ambient air pump 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 SAR compressor and ambient air pump.

How to maintain the Allegro 9821 ambient air pump?

Regularly inspect the Schrader fittings for leaks and clean or replace intake filters per the manufacturer's schedule. Check the 3/4 hp motor and verify airflow (0 to 10 cfm) and pressure (0 to 15 psi) remain within spec. Always follow Allegro's maintenance guidelines for respirator air pumps.

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.
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ALLEGRO Products

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

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