FTB400-Series

Supported Applications

The Omega FTB-400A Series Sanitary Turbine Flowmeters are designed for the measurement of process liquids where high sanitary standards are required. The series is compliant with the ASME Bioprocessing Equipment Standard BPE-2019 and features a turbine rotor assembly supported by self-lubricated ceramic ball bearings. These flowmeters generate an electrical pulse for each rotor blade passing a magnetic pickup coil, providing volumetric flow rate measurement suitable for Cleaning Out Of Place (COP) applications.

Operating Conditions & Performance

The FTB-400A Series operates within a process temperature range of -268 to 232°C (-450 to 450°F). Accuracy is specified as ±0.5% of reading or better over the linear flow range, with repeatability of ±0.1% of reading or better. The signal output provides 10 mV rms or greater into a 10 kΩ load at minimum flowrate. Operating pressure is limited by the Tri-Grip® fitting.

Configuration Options

The series includes 11 sizes ranging from ¼" to 3", covering linear water flow rates from 0.35 to 650 US GPM (1.32 to 2460 LPM). All models utilize Tri-Clamp™ fittings and are constructed with a 32 micro inch finish.

Materials of construction include:

• Housing: 316/316L Dual Rated Stainless Steel
• Rotor: 17.4 PH SS (or 17-4 PH SS)
• Retaining Ring: 15.7 MO PH SS (or 15-7 MO PH SS)
• Bearings: Hard Carbon Composite

The series supports the following options and accessories:

• Strainers/Filters
• Flow Straighteners and Installation Kits
• Digital flow indicators including DPF701, DPF402, DPF70 with FLSC-AMP, DPF10, FC20, 21, and 22 (visit OMEGA for compatibility)

Each unit comes complete with an operator's manual and a 10-point NIST calibration certificate. The series carries CE and RoHS certifications.

Key Product Differences

The FTB-400A Series is available in eleven distinct model numbers (FTB-401A through FTB-411A), differentiated by Tri-Grip™ size, flow meter size, linear flow range, length, nominal K-factor, and weight.

• Tri-Grip® Size: Models feature 1½", 2", or larger clamp sizes depending on the specific model number (e.g., FTB-409A uses a 2" Tri-Grip™).
• Flow Meter Size: Internal flow meter diameters range from ¼" to 3".
• Linear Flow Range: Ranges vary by model, such as 0.35 to 3.5 US GPM for the FTB-401A up to 40 to 650 US GPM for the FTB-411A.
• Nominal K-Factor: Pulse generation rates vary inversely with size, from 15,000 pulses/gal (FTB-401A) down to 45 pulses/gal (FTB-411A).