
Dwyer Instruments A-491 Pressure Tip
The Dwyer Instruments A-491 Pressure Tip is a professional-grade static pressure sensor designed for accurate airflow monitoring in commercial and industrial HVAC systems. Featuring a 6-inch straight 304 stainless steel probe, this duct mount pressure tip is engineered to deliver reliable differential pressure measurement when paired with manometers, Magnehelic gauges, or pressure switches. The integrated mounting flange comes with a rubber gasket and two mounting screws, ensuring a leak-proof seal and simplified installation on ductwork or plenums. Designed for systems with air velocities up to 1500 FPM, the A-491 static pressure tip effectively samples air pressure while minimizing the effects of aspiration or impingement. Its 1/4 inch hose barb facilitates a secure connection to standard flexible tubing, making it an essential component for monitoring pressure drops across filter banks, cooling coils, and blowers. This HVAC pressure sensing probe provides the precise data required for building automation and secondary airflow control systems, ensuring long-term stability in demanding environments.
Key Benefits- Precise Static Pressure Sensing: Optimized for accurate readings in airflows up to 1500 FPM.
- Durable Construction: Features a rugged 304 stainless steel probe and 303 stainless steel hose barb for corrosion resistance.
- Simplified Installation: The integral mounting flange with a rubber gasket provides a secure, airtight seal on any flat duct surface.
- Versatile Compatibility: Seamlessly integrates with differential pressure transmitters, controllers, and analog gauges.
- What is the maximum air velocity for the A-491? This straight tip is designed for smooth air at velocities up to 1500 FPM; for higher turbulence or velocity applications, consider a hooked-style tip.
- How do I ensure a proper seal during mounting? Utilize the included rubber gasket and mounting screws to prevent air leakage at the insertion point, which can skew pressure readings.
- What tubing size is compatible with this tip? The A-491 features a hose barb connection sized for use with standard 3/16 inch to 1/4 inch ID flexible tubing.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $12.97
-65%$12.97
$4.54Dwyer Instruments A-491 Pressure Tip
The Dwyer Instruments A-491 Pressure Tip is a professional-grade static pressure sensor designed for accurate airflow monitoring in commercial and industrial HVAC systems. Featuring a 6-inch straight 304 stainless steel probe, this duct mount pressure tip is engineered to deliver reliable differential pressure measurement when paired with manometers, Magnehelic gauges, or pressure switches. The integrated mounting flange comes with a rubber gasket and two mounting screws, ensuring a leak-proof seal and simplified installation on ductwork or plenums. Designed for systems with air velocities up to 1500 FPM, the A-491 static pressure tip effectively samples air pressure while minimizing the effects of aspiration or impingement. Its 1/4 inch hose barb facilitates a secure connection to standard flexible tubing, making it an essential component for monitoring pressure drops across filter banks, cooling coils, and blowers. This HVAC pressure sensing probe provides the precise data required for building automation and secondary airflow control systems, ensuring long-term stability in demanding environments.
Key Benefits- Precise Static Pressure Sensing: Optimized for accurate readings in airflows up to 1500 FPM.
- Durable Construction: Features a rugged 304 stainless steel probe and 303 stainless steel hose barb for corrosion resistance.
- Simplified Installation: The integral mounting flange with a rubber gasket provides a secure, airtight seal on any flat duct surface.
- Versatile Compatibility: Seamlessly integrates with differential pressure transmitters, controllers, and analog gauges.
- What is the maximum air velocity for the A-491? This straight tip is designed for smooth air at velocities up to 1500 FPM; for higher turbulence or velocity applications, consider a hooked-style tip.
- How do I ensure a proper seal during mounting? Utilize the included rubber gasket and mounting screws to prevent air leakage at the insertion point, which can skew pressure readings.
- What tubing size is compatible with this tip? The A-491 features a hose barb connection sized for use with standard 3/16 inch to 1/4 inch ID flexible tubing.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Dwyer Instruments A-491 Pressure Tip is a professional-grade static pressure sensor designed for accurate airflow monitoring in commercial and industrial HVAC systems. Featuring a 6-inch straight 304 stainless steel probe, this duct mount pressure tip is engineered to deliver reliable differential pressure measurement when paired with manometers, Magnehelic gauges, or pressure switches. The integrated mounting flange comes with a rubber gasket and two mounting screws, ensuring a leak-proof seal and simplified installation on ductwork or plenums. Designed for systems with air velocities up to 1500 FPM, the A-491 static pressure tip effectively samples air pressure while minimizing the effects of aspiration or impingement. Its 1/4 inch hose barb facilitates a secure connection to standard flexible tubing, making it an essential component for monitoring pressure drops across filter banks, cooling coils, and blowers. This HVAC pressure sensing probe provides the precise data required for building automation and secondary airflow control systems, ensuring long-term stability in demanding environments.
Key Benefits- Precise Static Pressure Sensing: Optimized for accurate readings in airflows up to 1500 FPM.
- Durable Construction: Features a rugged 304 stainless steel probe and 303 stainless steel hose barb for corrosion resistance.
- Simplified Installation: The integral mounting flange with a rubber gasket provides a secure, airtight seal on any flat duct surface.
- Versatile Compatibility: Seamlessly integrates with differential pressure transmitters, controllers, and analog gauges.
- What is the maximum air velocity for the A-491? This straight tip is designed for smooth air at velocities up to 1500 FPM; for higher turbulence or velocity applications, consider a hooked-style tip.
- How do I ensure a proper seal during mounting? Utilize the included rubber gasket and mounting screws to prevent air leakage at the insertion point, which can skew pressure readings.
- What tubing size is compatible with this tip? The A-491 features a hose barb connection sized for use with standard 3/16 inch to 1/4 inch ID flexible tubing.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












