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Quick Answer
For single-use bio-pharma lines, select a clamp-on ultrasonic flow meter for non-contact flow or a single-use Coriolis mass flow meter for exact mass flow and density. Silver Instruments supplies both types with USP Class VI wetted parts, gamma stable materials, and 4-20 mA HART output. Send your flow range in L/min, tubing OD in inches, and operating pressure in bar for a quote within 24 hours.
Biotech Flow Meter: Sourcing Ultra-Pure Single-Use Bio-Pharma Process Sensors
Single-use bioprocess lines need sensors that do not contaminate the fluid path. Silver Automation Instruments focuses on flow meters for upstream cell culture, downstream buffer prep, and final fill lines. We ship from Nanjing to biotech facilities in Singapore, Australia, Mexico, Brazil, Saudi Arabia, and Vietnam.
Most engineers skip this part. The sensor body and wetted parts must survive gamma irradiation at 25 to 40 kGy. Gamma can degrade cheap plastic bodies or adhesives. We specify gamma stable PFA, platinum-cured silicone, and 316L stainless steel for reusable transducers.
Two Sensor Types That Work in Single-Use Bio-Pharma
Clamp-on ultrasonic flow meters sit outside silicone or C-Flex tubing. No fluid contact. No cleaning validation. These sensors handle 0.1 to 50 L/min on 1/8 inch to 1 inch OD tubing. Accuracy is typically 1 percent of reading after in-situ calibration. Use the Silver USF-BIO for media feed, buffer dilution, and harvest transfer.
Single-use Coriolis flow meters measure mass flow, density, and temperature in one device. The Silver CMF-SU-15 covers DN15 and the Silver CMF-SU-25 covers DN25. Both use tri-clamp ends. Accuracy reaches 0.2 percent of rate for mass flow. Use the Silver CMF-SU for final fill, dosing, and chromatography feed where mass flow prevents overfill or batch errors.
In practice, many process engineers prefer clamp-on ultrasonic for pilot skids because installation takes minutes. For commercial fill lines, Coriolis gives better batch repeatability and data for regulatory submissions.
Key Specifications for Ultra-Pure Process Sensors
Wetted materials should meet USP Class VI and ISO 10993. We use platinum-cured silicone, PFA, and 316L stainless steel. Surface finish for wetted stainless parts is Ra 0.4 µm or better. Gamma tolerance is 25 to 40 kGy for single-use assemblies.
Output options include 4-20 mA HART, pulse, and Modbus RTU. Process conditions for single-use sensors are typically 0 to 60 °C and 0 to 4 bar. Mass flow range for the Silver CMF-SU is 0.5 to 2000 kg/h for water-like fluids. Viscosity up to 200 cP is fine for the Coriolis sensor. The ultrasonic transmitter includes PT100 temperature compensation. If your process uses ethanol or solvent, request an ATEX Zone 1 rated transmitter.
Every sensor ships with a calibration certificate
Sourcing Tips for Bio-Pharma Teams
Do not buy a general industrial flow meter and hope it will survive gamma sterilization. We have seen adhesive joints fail on customer sites many times after one irradiation cycle. Specify gamma stable materials at the quote stage.
Ask for a sample calibration on your exact tubing type. Tubing hardness, wall thickness, and temperature drift affect clamp-on ultrasonic accuracy. A water calibration on generic tubing is not enough for parenteral filling.
For clean utility water outside the single-use loop, an electromagnetic flow meter with 0.5 µS/cm minimum conductivity is a better fit. Silver Instruments can supply both the single-use process sensor and the utility water meter from one vendor.
Silver Instruments keeps common sizes in Nanjing. We shipped 40 clamp-on ultrasonic flow meters to a vaccine CDMO in Singapore last year. Each unit was set up for 1/4 inch OD silicone tubing and calibrated at 0.5 L/min, 5 L/min, and 20 L/min. The production team reported no drift over 3 batches. We also supplied a pilot plant in Melbourne with 12 Silver USF-BIO sensors for a downstream buffer skid.
FAQ on Single-Use Bio-Pharma Flow Meters
Q: Can I use a clamp-on ultrasonic meter on single-use tubing?
A: Yes. It fits outside silicone, C-Flex, or thermoplastic tubing. No fluid contact. Calibrate on your tubing type for best accuracy.
Q: Does gamma irradiation damage the flow sensor?
A: No. We use gamma stable PFA and platinum-cured silicone. Reusable electronics stay outside the irradiation loop.
Q: What output signals do your bio-pharma flow meters offer?
A: 4-20 mA HART, pulse, and Modbus RTU. Specify your PLC or SCADA protocol when you send the quote request.
Q: What documentation do you provide for validation?
A: We provide material certificates, calibration certificates, surface finish reports, and IQ/OQ templates. We can ship documentation with the sensor or by email.
Q: How fast can you ship to Southeast Asia or Latin America?
A: We stock common clamp-on and single-use Coriolis sizes in Nanjing. DHL Express reaches Singapore, Mexico, Brazil, and Australia in 3 to 5 business days.
Get a Quote for Single-Use Bio-Pharma Flow Meters
Send your flow range in L/min, tubing outer diameter in inches, pressure in bar, and temperature in °C. A Silver Instruments engineer will reply with a quote and dimensional drawing. Visit flow-meter.com.au for technical drawings and CAD files.
Tel: +86-25-68650347
Whatsapp: +86-25-52155837
WeChat: +86 15365082610
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