The Sierra Instruments InnovaMass® 241S Insertion is a vortex flow meter for mass or volumetric flow monitoring of steam, gases, and liquids.
Its insertion probe accommodates pipes and ducts up to 72″ (2 m), with an optional hot-tap configuration for installation without a process shutdown.
The InnovaMass® 241S is available in volumetric-only and multivariable configurations.

The multivariable configuration measures mass flow rate, volumetric flow rate, temperature, pressure, and fluid density through one process connection.
Key Characteristics
- Insertion probe for pipes and ducts up to 72” (2 m)
- Mass or volumetric flow monitoring of steam, gases, and liquids
- Volumetric-only and multivariable configurations
- Five process measurements through one process connection with the multivariable configuration
- Optional hot tap and hot-tap retractor
- Energy (BTU) monitoring option for steam and water
- Available loop-powered design
- No moving parts
Ideal Applications
- Saturated or superheated steam flow measurement
- Geothermal steam applications
- Gas and liquid flow monitoring
- Large-pipe and duct flow measurement
- Plant services flow measurement
- Energy (BTU) monitoring for steam and water
Product Family Includes
- InnovaMass® 240S Inline
- InnovaMass® 241S Insertion
Industries Served
- Environmental
- Oil & Gas
- Petrochemical
- Facilities Management
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