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Allegro 9821 OBAC Ambient Air Pump, 0 to 10 cfm, 0 to 15 psi, 3/4 hp - Allegro SAR Compressors & Ambient Air Pumps
ALLEGROAllegro SAR Compressors & Ambient Air Pumps

Allegro 9821 OBAC Ambient Air Pump, 0 to 10 cfm, 0 to 15 psi, 3/4 hp

The Allegro 9821 OBAC Ambient Air Pump delivers 0 to 10 cfm at 0 to 15 psi, powered by a 3/4 hp motor and equipped with OBAC fittings to support up to two respirators. 3G Electric interprets this demand and supplies…

SKU 3G-OTH-691949

Also listed as: 9821OBAC · 9821-OBAC

Brand
ALLEGRO
Item
9821 OBAC Ambient Air Pump, 0 to 10 cfm, 0 to 15 psi, 3/4 hp
Part Number
9821 OBAC
Category
Allegro SAR Compressors & Ambient Air Pumps
Available to Order
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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 OBAC
Type
0 to 15 psi, OBAC, Allegro 9821
Air Flow
0 to 10 cfm
Fittings
OBAC
Horsepower
3/4 hp
Respirators
2
Brand and Series
Allegro 9821
Operating Pressure
0 to 15 psi

Technical Documents

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

Product Description

The Allegro 9821 OBAC Ambient Air Pump delivers 0 to 10 cfm at 0 to 15 psi, powered by a 3/4 hp motor and equipped with OBAC fittings to support up to two respirators. 3G Electric interprets this demand and supplies the genuine Allegro SAR Compressors & Ambient Air Pumps across 14 industrial departments — with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is the Allegro 9821 OBAC Ambient Air Pump used for?

The Allegro 9821 OBAC Ambient Air Pump supplies breathable air to up to two respirators in industrial environments. It is commonly used in painting, chemical handling, and confined-space operations where a continuous, clean air source is required for worker safety.

What are the specifications of the Allegro 9821 OBAC Ambient Air Pump?

The Allegro 9821 OBAC delivers 0 to 10 cfm air flow at 0 to 15 psi operating pressure, powered by a 3/4 hp motor. It features OBAC fittings and supports two respirators. The manufacturer part number is 9821 OBAC.

Where to buy the Allegro 9821 OBAC Ambient Air Pump worldwide?

3G Electric supplies the genuine Allegro 9821 OBAC Ambient Air Pump worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this respirator air pump.

How to select the right ambient air pump for two respirators?

Select a pump that meets the combined air flow and pressure requirements of both respirators. The Allegro 9821 OBAC provides 0 to 10 cfm at 0 to 15 psi, sufficient for two units. Verify your respirator's NIOSH approval and fitting compatibility before ordering.

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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