Primary Flow Signal, Inc. (PFS)
PFS - Model ASME PTC-6 -Flow Nozzle
The ASME PTC-6 Throat Tap Flow Nozzle provides the highest possible dP device accuracy and precision which is needed for the testing of steam turbine efficiency as prescribed in the ASME PTC-6 2004 Performance Test Code. The PTC-6 Flow Nozzle is supplied complete with integrated up/down pipe spools, a flow conditioner and with an optional nozzle outlet diffuser cone for considerably reduced pressure loss. All PTC-6 Flow Nozzles supplied by Primary Flow Signal are guaranteed to meet the strict laboratory calibration criteria required to maintain the uncertainty needed for turbine performance testing.
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+/- 0.25% Always Calibrated
Highest Accuracy / Repeatability
- Line size: 4 to 28 inches
- Head loss (permanent pressure loss) in % of Differential: 60% to 85% (18% to 25% with optional outlet diffuser cone), Beta Dependent
- Recommended Application, THROAT Reynolds Number: Greater than 500,000
- Standard Line Size: 4 to 28 inches (not limited to)
- Head Loss (permanent pressure loss) in % of Differential: 60% to 85% (18% to 25% with optional outlet diffuser cone), Beta Dependent
- Basic Accuracy (% of Total): (Always Calibrated) +/- 0.25%
- Recommended Application, THROAT Reynolds Number: Greater than 500,000
- Required Straight Piping: 20D Upstream / 10D Downstream
- Beta Range: 0.25 through 0.50
- Useful Service Life: Medium to Long
- Service Functional Limits: Clear Liquids, Gas and Steam, Typically Hot Water
- Applications: Steam and Water
- Common Materials: Carbon Steel, Stainless Steel, Chrome Moly
- Other Available Materials not limited to: Aluminum, Zirconium, Hastelloy, Monel, Duplex SS, Titanium, Tantalum, 321SS
- Note(s): The PTC-6 flow nozzle is a specialized dP device and is required to meet stringent laboratory calibration criteria to be acceptable for use. The risk associated with laboratory failures and the legitimacy of laboratory data should be heavily considered when selecting a supplier for your PTC-6 application. All Primary Flow Signal PTC-6 supplied units are independently calibrated at a leading High Reynolds calibration facility and are guaranteed by PFS to meet PTC-6 calibration criteria.