Teledyne TNAHL-25PG CC-420 Laminar Flow Element

Description:

The Teledyne TNAHL-25PG CC-420 Laminar Flow Element is used to accurately measure high-capacity gas flow by creating a linear pressure drop across a precision laminar flow element for thermal mass flow measurement systems. Commonly installed in industrial gas handling systems, semiconductor manufacturing equipment, furnace fuel systems, leak testing equipment, laboratory gas distribution systems, and process control applications requiring accurate medium- to high-flow gas measurement. Maintenance technicians, instrumentation engineers, and system integrators use this laminar flow element for equipment repair, calibration, system expansion, and replacement of existing gas flow measurement components.

Applications:

The Teledyne TNAHL-25PG CC-420 Laminar Flow Element is commonly used in bulk gas handling, industrial process control, semiconductor manufacturing, combustion monitoring, research and development laboratories, gas blending systems, leak testing, and OEM flow measurement equipment where stable, low-pressure-drop gas flow measurement is essential.

Technical Specifications:

• Manufacturer: Teledyne Hastings Instruments
• Part Number: TNAHL-25PG CC-420
• Product Type: Laminar Flow Element (LFE)
• Function: Produces a linear pressure differential proportional to gas flow for use with thermal mass flow transducers
• Measurement Principle: Laminar flow differential pressure sensing
• Compatible Equipment: Teledyne Hastings HFM-200 Mass Flow Meter and compatible thermal mass flow systems
• Flow Capacity: Approximately 25 SCFM (750 SLM Nitrogen Equivalent)
• Connection Size: 2 in. NPT (25 SCFM configuration)
• Construction Material: Stainless Steel
• Standard Working Pressure: Up to 500 psig (threaded configuration)
• Typical Pressure Drop: Approximately 4.5 in. H₂O at full-scale flow
• Output Compatibility: 0–5 VDC and 4–20 mA when paired with compatible transducer and electronics
• Applications: High-capacity gas measurement, industrial process monitoring, gas distribution, and laboratory instrumentation
• OEM Status: Genuine Teledyne Hastings Instruments laminar flow element component

Common Replacements:

• Teledyne Hastings L-25S Stainless Steel Laminar Flow Element
• Teledyne Hastings HFM-200 with LFE Assembly
• Teledyne Hastings L-50S Stainless Steel Laminar Flow Element