Product Overview

The document presents the EE771 and EE772 Inline Flowmeters by Riels Instruments Srl, designed for measuring compressed air and gases. These flowmeters cover pipe diameters from DN15 (1/2") to DN80 (3").

Models and Features

• EE771: Compact model with assembly including a ball valve, suitable for pipeline sizes DN15 to DN50 (1/2" to 2").
• EE772: Remote probe model designed for larger pipelines DN40 to DN80 (1 1/2" to 3"), assembled with a MultiController.

Both models allow sensor exchange under pressure without interrupting flow. They support additional sensors for dew point and pressure measurement.

Technical Specifications

• Maximum Working Pressure: EE771 up to 16 bar (232 PSI), EE772 up to 40 bar (580 PSI).
• Pipe Connections: Various thread types including Rp and NPT ranging from Rp1/2" to Rp or NPT 3" depending on pipe diameter.
• Dimensions: Detailed dimensions provided for ball valve assembly and pipe diameters, with measurements in millimeters and inches.

Measurement and Outputs

The flowmeters measure volumetric flow with a totalizer function for consumption measurement. The document includes formulas for calculating standardized volumetric flow based on operating pressure.

Installation and Configuration

EE771 is assembled with a ball valve for inline installation, while EE772 uses a remote probe connected to a MultiController. Configuration software is available for setup and calibration.

Ordering Information

The document provides an ordering guide and example to assist in selecting the appropriate model and accessories.

Additional Notes

All data and content are proprietary to Riels Instruments Srl. Contact information is provided for technical support and inquiries.