RIV990 Visual flow indicator

RIV990 Visual flow indicator with flow rate reading suitable for neutral or corrosive media. Up to DN100
Measuring range up to DN100
Process temperature up to 100°C
Process pressure 10 Bar
Type of view Window toughened glass

Visual Flow Indicators for checking the passage of transparent liquids in a  horizontal duct.

With a robust structure and practical design, they are suitable for use on 
systems where high measurement accuracy is not required.
The reading is carried out on a silk-screened scale on the porthole.

Special executions for higher pressures and temperatures are built on request.


In this section you will find all the variants available for this model, improve your configuration with the drop-down menus below, select the desired quantity and click on "ADD TO CART or REQUEST A QUOTE"

The price displayed refers to a specific configuration and changes based on the variants selected.
The configuration follows an indicative order. Configure the product according to your needs.
Measurement techniques

Food industry

With hygienic sensor solutions made of stainless steel, Riels® Instruments meets the high hygiene requirements in the food industry. We ensure continuous and lasting safety, solving chemical and thermal resistance challenges to protect products and processes.

Read more

Water & Wastewater

Water is a precious commodity. Monitoring of water resources is very important and Riels® Instruments supplies sensors for measuring flow, level, pressure in the water and wastewater treatment sector.

Read more

Chemical & Pharmaceutical Industry

In the chemical and pharmaceutical industry, excellence requires cutting-edge technologies. Riels® Instruments, with its wide range of instruments for industrial automation, satisfies every need, guaranteeing rigorous safety and precision standards.

Read more

Oil & Gas | Offshore

Oil and gas fuel industry and the progress of civilization. In the mining and refining sector, with tankers and pipelines, safety is paramount. We are committed to ensuring high safety standards to support the oil industry and its vital role in modern society.

Read more