Flow Systems has designed and engineered a series of turbine engine component flow benches, including:

Product Name Configuration Flow Range Uncertainty Analysis Repeatability # of Ports
High Flow Air Test Stand Standard 0.0005 to 0.9 lbm/sec ±0.29% < ±0.15% 2
Option 1 0.001 to 0.9 lbm/sec ±0.29% < ±0.15% 2
Option2 0.0005 to 2.0 lbm/sec ±0.29% < ±0.15% 2
Medium Flow Air Test Stand Standard 0.002 to 0.42 lbm/sec ±0.29% < ±0.15% 1 or 2
Low Flow Air Test Stand Standard 0.0005 to 0.1 lbm/sec ±0.29% < ±0.15% 1 or 4
Option 1 0.0003 to 0.1 lbm/sec ±0.29% < ±0.15% 1 or 4
Option 2 0.0005 to 0.22 lbm/sec ±0.29% < ±0.15% 1 or 4
Mini Flow Air Test Stand Config. A 0.0005 to 0.1 lbm/sec ±0.48% ±0.25% 1 or 2
Config. B 0.001 to 0.2 lbm/sec ±0.48% ±0.25% 1 or 2
Config. C 0.1 to 0.9 lbm/sec ±0.48% ±0.25% 1 or 2
Config. D 0.1 to 2.0 lbm/sec ±0.48% ±0.25% 1 or 2
Mega Flow Air Test Stand Config. A 1.0 to 2.0 lbm/sec ±0.48% ±0.25% 1
Config. B 2.0 to 4.0 lbm/sec ±0.48% ±0.25% 1
Config. C 4.0 to 8.0 lbm/sec ±0.48% ±0.25% 1
Config. D 8.0 to 16.0 lbm/sec ±0.48% ±0.25% 1
Portable Air Flow Test Stand Config 1 0.002 to 0.2 lbm/sec ±0.48% < ±0.25% 1
Config 2 0.0006 to 0.15 lbm/sec ±0.48% < ±0.25% 1
Config 3 0.00015 to 0.05 lbm/sec ±0.48% < ±0.25% 1

The air flow test stands have the characteristics listed below.

Comply with OEM Test Specifications

Aerospace OEMs and their suppliers worldwide require quality airflow measurement of passages in both aircraft and land-based turbine engine components. Each OEM has a unique testing specification and their suppliers must be flexible with the test procedures in order to comply with each OEM test specification. Accuracy, repeatability, throughput and availability are critical elements in the design of these test systems. These air flow test systems currently comply with the in-house testing procedures of ABB/Alstom Power, ABB Gas Turbines, Pratt & Whitney America, Pratt & Whitney Canada, General Electric Aircraft Engines (General Electric Infra, Aviation), General Electric Power Systems (General Electric Infra, Energy), Honeywell, Mitsubishi Power Systems, Mitsubishi Heavy Industries, Allison Engine, Rolls-Royce, Solar Turbines, Siemens, Siemens-Westinghouse, Snecma, and many others.

Traceable to NIST

All Flow Systems air test stands utilize sonic nozzles which have been calibrated and are traceable to National Institute of Standards and Technology (NIST).

Built on Sonic Nozzle (Critical Flow Venturi) Technology

Flow Systems Air Flow Test Systems utilize sonic nozzles (also called "critical flow venturis" or "critical flow nozzles") technology for measuring mass flow of air. Advantages of using sonic nozzles include: internationally recognition of performance, variable mass flow, long term accuracy, good to excellent repeatability, and no moving parts.

Built with Commercial Off-The-Shelf (COTS) Components

All Flow Systems air flow test system designs, the test system controller, data acquisition and control subsystems, and all instrumentation are standard and readily available Commercial Off-The-Shelf (COTS) items. This ensures that service or replacement of any item can be achieved in a timely manner, providing for high availability of our products. When applicable, this includes all of the Unit Under Test related instrumentation specified by the customer.

Managed by LabVIEW™ Based Controller Software

All Flow Systems air flow test system designs, the test system controller, data acquisition and control subsystems, and all instrumentation are standard and readily available Commercial Off-The-Shelf (COTS) items. This ensures that service or replacement of any item can be achieved in a timely manner, providing for high availability of our products. When applicable, this includes all of the Unit Under Test related instrumentation specified by the customer.