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

ALLEGRO Ambient Air Pump: 0 to 10 cfm, 0 to 15 psi, 3/4 hp Horsepower, Hansen, Allegro 9821

The Allegro 9821 Ambient Air Pump (SKU 8A391) is a SAR compressor and ambient air pump delivering 0 to 10 cfm airflow at 0 to 15 psi operating pressure, powered by a 3/4 hp motor. It features Hansen fittings and…

SKU 3G-OTH-691947

Brand
ALLEGRO
Item
Ambient Air Pump: 0 to 10 cfm, 0 to 15 psi, 3/4 hp Horsepower, Hansen, Allegro 9821
Category
Allegro SAR Compressors & Ambient Air Pumps
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Technical Specifications

ALLEGRO
Manufacturer Part Number
9821 W/ 3/8 HANSEN
Type
0 to 15 psi, Hansen, Allegro 9821
Air Flow
0 to 10 cfm
Fittings
Hansen
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 8A391) is a SAR compressor and ambient air pump delivering 0 to 10 cfm airflow at 0 to 15 psi operating pressure, powered by a 3/4 hp motor. It features Hansen fittings and supports up to 2 respirators. This unit is part of the Allegro 9821 series, with manufacturer part number 9821 W/ 3/8 HANSEN.

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 is commonly used for supplied-air respirator (SAR) systems in painting, chemical handling, and confined-space work where ambient air is safe to compress.

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

The Allegro 9821 delivers 0 to 10 cfm airflow at 0 to 15 psi operating pressure, powered by a 3/4 hp motor. It includes Hansen fittings and supports up to two respirators. The manufacturer part number is 9821 W/ 3/8 HANSEN.

Where to buy the Allegro 9821 ambient air pump worldwide?

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

How to select the right ambient air pump for respirators?

Select an ambient air pump based on required airflow (cfm) and pressure (psi) for your respirator count. The Allegro 9821 supports up to two respirators at 0 to 10 cfm and 0 to 15 psi. Ensure fittings match your system; this unit uses Hansen quick-connect couplings.

Used in

Common applications for ALLEGRO
Industrial hygiene monitoring — ALLEGRO lead cassettes (9804-14) for airborne lead sampling in manufacturing facilities.
Confined space ventilation — ALLEGRO axial blower (9548) for air movement in tanks or vaults during maintenance.
Temporary heating on construction sites — ALLEGRO portable electric heater (9401-50) for work tents in cold weather.
Sampling pump maintenance — ALLEGRO service kits (9804-40) for replacing vanes and filters in IAQ pumps.
Asbestos or particulate analysis — ALLEGRO TEM cassettes (9804-17) for electron microscopy sample collection.
HVACR system testing — ALLEGRO axial blower (9548) for ventilation testing in ductwork or equipment rooms.

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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