Dwyer Instruments A-350 | Aspirator Bulb | Used as pressure source in calibration and leakage tests
The Dwyer Instruments A-350 Aspirator Bulb is a compact, squeeze-operated pressure and vacuum source designed for calibration checks, leakage testing, and gas sampling applications. It can generate positive pressure for testing instruments or create a vacuum to draw smoke or air samples into a gauge or CO2 indicator.
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Part Number: A-350
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Product Overview
The Dwyer A-350 Aspirator Bulb provides a simple and portable way to generate pressure or vacuum during calibration and leakage tests. Once the tubing is connected to the instrument under test, squeezing the bulb generates positive pressure for checking gauges, pressure switches, pressure transmitters, and other test instruments.
The A-350 can also be used as a vacuum source. By squeezing the aspirator bulb before entering or connecting the tubing, the bulb creates a vacuum that draws smoke or air into the connected gauge or indicator. This makes it useful for applications such as smoke-leak testing and drawing air samples into a CO2 indicator.
Its small and lightweight design makes the A-350 convenient for field technicians who need a straightforward pressure source without carrying a larger calibration pump. The bulb accommodates a 16 to 200 mm diameter range and is designed for operation in environments from 32 to 122°F (0 to 50°C).
The A-350 is particularly useful where a simple manual pressure or vacuum source is sufficient for calibration checks, leakage testing, and sampling applications.
Key Benefits
- Provides a simple pressure source for calibration and leakage testing
- Can create either positive pressure or vacuum
- Draws smoke or air samples into gauges and CO2 indicators
- Compact and lightweight for portable field use
- Suitable for calibration checks on pressure switches and transmitters
- Accommodates a 16 to 200 mm diameter range
- Operates from 0 to 50°C (32 to 122°F)
- Genuine Dwyer stock with free UAE-wide shipping
Who This Product Is Best For
The Dwyer A-350 is suited for:
- Field technicians performing calibration checks
- Technicians testing pressure switches and transmitters
- Maintenance teams carrying out leakage tests
- Smoke-leak testing applications
- Users requiring air or smoke sampling for CO2 indicators
- Portable instrument testing where a compact manual pressure source is preferred
How to Use
- Connect the A-350 tubing to the gauge, indicator, or instrument being tested.
- Squeeze the bulb after connecting the tubing to generate positive pressure.
- For vacuum sampling, squeeze the bulb before entering or connecting the tubing to draw smoke or air into the connected instrument.
- Observe the reading on the connected gauge or indicator.
- Release and repeat the process as required for calibration or leakage checks.
Frequently Asked Questions
What is the Dwyer A-350 used for?
The A-350 is an aspirator bulb used as a pressure or vacuum source for calibration and leakage testing. It can also draw smoke or air samples into a gauge or CO2 indicator.
How does the A-350 create pressure?
The pressure source is generated manually by squeezing the bulb after the tubing is connected to the instrument under test.
Can the A-350 create a vacuum?
Yes. The A-350 can create a vacuum for drawing smoke or air samples into a connected gauge or indicator.
What applications can the A-350 be used for?
It can be used for calibration checks, pressure switch and transmitter testing, leakage testing, smoke sampling, and CO2 indicator applications.
What diameter range does the A-350 accommodate?
The A-350 accommodates a 16 to 200 mm diameter range.
What is the operating temperature range?
The A-350 is designed for operation from 32 to 122°F (0 to 50°C).
Is genuine Dwyer A-350 stock available in the UAE?
Genuine Dwyer stock with free UAE-wide shipping is available. Call +971 6 5436933 for current pricing and availability.
Request a Quote Today
For pricing, stock availability, or ordering assistance for the Dwyer A-350 Aspirator Bulb, contact General Tech Services LLC.
Call: +971 6 5436933
Website: www.generaltechshop.ae
