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We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

(800) 616–3837

A21 Gas Sampler

The A21 Gas Sampler system utilizes a high-quality diaphragm pump, powered by a brushless DC motor, for seamless and continuous sampling operations. The advanced pump design ensures reliable performance, withstanding rigorous usage for prolonged periods without compromising on sampling accuracy.

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Gas Sample Pumping System

The A21 Gas Sampler is a pumping system designed to draw gas samples from ducts or hard-to-access locations and deliver them to gas sensors, such as the D12 Toxic and Combustible Gas Detector, located in a more convenient area.

The A21 Gas Sampling systems use a high-quality diaphragm pump that is operated by a brushless DC motor to provide continuous sampling over long periods of time. Gas sampling pumps are rated for over 10,000 hours of continuous operation, and diaphragms in the pump may be changed easily if necessary. The pump will draw gas samples against a vacuum of up to 10” Hg. For sampling negative pressure duct systems when necessary.

In addition to the sampling pump, the A21 systems contain various components needed to ensure reliable gas sample measurement. A flowmeter mounted on the front panel allows the user to adjust the gas sample flow rate to the desired value, normally around 500 cc./min. Internal to the system is a “loss of flow” detector that will warn of sampling system problems that could compromise the gas measurement system. A “loss of flow” alarm light on the front panel provides local flow loss indication while an internal relay can be used to indicate this alarm remotely.

Features

  • Integrated Sampling System
  • Standard Loss of Flow Alarm
  • Variable Flowrate Adjustment
  • AC or 12 VDC Systems Available
  • NEMA 4X Enclosure

Market Applications

  • Environmental Monitoring

    ​Environmental monitoring solutions are designed to protect the world’s most precious resource. Instruments are deployable throughout the network to measure a variety of parameters, collect baseline data and deliver a deeper understanding of trends that enable early event detection and response.

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  • Wastewater Treatment

    Wastewater treatment facilities feature complex operational processes involving a wide range of flow measurement, water quality monitoring and toxic gas detection solutions, designed to conserve water, increase regulatory compliance and safeguard water quality, people and the environment. From individual monitors to multiparameter measurement, our versatile solutions deliver continuous and proactive monitoring for early event detection, odor control, pollution prevention, chemical management and toxic gas detection.

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  • Drinking Water Treatment

    Drinking water treatment facilities have the critical job of producing a safe supply of high-quality drinking water. Complex operational processes demand the highest flow meter accuracy and reliability, as well as long-term stability and a low cost of ownership. Badger Meter water treatment solutions meet the challenge, assisting utility customers with increasing compliance levels, protecting treatment assets and providing opportunities for process optimization using predictive analytics.

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  • Industrial Pre-Treatment

    Industrial pre-treatment is a crucial stage in the water cycle, occurring before wastewater enters municipal treatment facilities. It involves the removal of contaminants, pollutants, and other harmful substances from industrial wastewater streams to meet regulatory standards and protect the environment. This process typically includes physical, chemical, and biological treatment methods tailored to specific industrial processes and pollutants. By effectively pre-treating industrial wastewater, we can safeguard water quality, prevent damage to treatment infrastructure, and ensure the overall health of ecosystems downstream.

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Product Documentation

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Manuals & Guides | English Model A21 Gas Sampling System
Specifications | English Series A21 Gas Sampling System
Specifications | English Gas Sample Pumping System

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Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

(800) 616–3837