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TE-1003 Flow Venturi and Calibration Valve
The TE-1003 Flow Venturi and Calibration Valve is a precision flow measurement component designed for use in Tisch Environmental's high volume air sampling systems. This differential pressure flow device operates on the venturi principle to provide accurate flow measurement and calibration capabilities for ambient air monitoring applications.
Technical Operation
The venturi design creates a constriction in the flow path that causes a pressure drop across the meter, which can be measured and correlated with flow rate. The principle behind operation is the Bernoulli effect, where the venturi measures fluid flow rate by reducing the cross-sectional flow area and generating a pressure difference. This differential pressure measurement enables precise flow determination for EPA-compliant sampling protocols.
Key Specifications
- Differential pressure flow measurement technology
- Requires two pressure measurements for accurate flow determination
- Minimal pressure loss design for efficient operation
- Calibration valve integration for field adjustments
Compatibility
The TE-1003 is specifically designed for integration into high volume PUF air sampling systems, working in conjunction with 0-100" magnehelic gauges for pressure measurement. Related venturi components include the TE-1003-4 Flow Venturi for PUF Sampler and TE-1003-6 Flow Venturi Calibration Valve for specific sampling configurations.
Installation and Calibration
The integrated calibration valve allows for field adjustments to ensure accurate flow measurement throughout the sampling period. Proper installation requires locating valves downstream of the flow meter when possible, as upstream valves can create uneven flow profiles that affect measurement accuracy. The venturi design provides stable flow measurement even as filter loading increases during extended sampling periods.
Applications
Essential for EPA-compliant ambient air quality monitoring programs, particularly polyurethane foam pesticide and semi-volatile sampling systems for collection of particulate and vapor phase compounds. Supports regulatory monitoring networks, industrial perimeter monitoring, and research campaigns requiring precise flow documentation and traceability.