The Bühler SM-6 / S-SM Series Variable-Area Flow Meter (Rotameter) lineup represents a robust flow measurement solution engineered by Bühler Technologies (Germany). Designed specifically for extractive gas analysis conditioning systems (CEMS) and industrial fluid processing, this series offers high corrosion resistance and operational reliability.

The product line offers versatile model variations:

1. Standard Bühler SM-6 Series:
   • SM-6: Standard glass-tube flow meter for liquid and gaseous applications.
   • SM-6-V: Integrates an adjustable precision needle valve for fine flow rate control.
   • SM-6-U: Reversed flow direction configuration for specific piping orientations.
   • SM-6-VA / SM-6-VA-V: Constructed with high-grade Stainless Steel wetted parts for aggressive chemical media.

2. Heavy-Duty Bühler S-SM Series (S-SM / S-SM-VA):
   • Features a slotted stainless steel protective outer casing encapsulating the glass measuring tube. This rugged enclosure shields the tube from external mechanical impacts and provides maximum safety for plant personnel against glass breakage under pressure.

All models can be optionally equipped with bi-stable limit switches (Flow Sensors) to transmit alarm signals to PLC automation controllers upon flow deviation.

• Manufacturer: Bühler Technologies
• Product Line: Variable-Area Flow Meters (Rotameters)
• Included Models: SM-6 / SM-6-V / SM-6-U / SM-6-VA / SM-6-VA-V / S-SM / S-SM-VA
• Country of Origin: Germany
• Air Flow Measuring Ranges: 6 - 60 Nl/h up to 80 - 800 Nl/h (depending on tube selection)
• Water Flow Measuring Ranges: 0.5 - 5 l/h up to 6 - 60 l/h
• Maximum Operating Pressure: Up to 4 bar (SM-6 series) or 10 bar (S-SM protective casing series)
• Maximum Medium Temperature: Up to +100°C / +150°C
• Wetted Materials: PTFE / PVDF / Stainless Steel 316Ti / Borosilicate Glass 3.3
• Optional Accessories: Precision Needle Valve, Bi-stable Limit Switch (IP67 Protection)
• Process Connection: G1/4 female thread