The Rotameters RAGK and RAGL are specifically designed for the measurement of low flows of liquids and gases. Their main application field is in purging, analyzer and gas sampling systems, laboratories and machinery equipment. Integrated needle valves are optionally available and are used for the fine adjustment of the flow. These simple and affordable Rotameters have a very broad application range, large variety in cones and floats and decades of proven design. The Rotameters RAGK and RAGL complete Yokogawa´s Metal and Glass Rotameter Portfolio suitable for SIL applications and applications complying to the Machinery Directive.
|For Pipe Sizes||1/4" to 3/8"|
|Process Connections||Threaded, Swagelok, cutting ring, nozzle|
|Measuring Range||Water 20 °C: 2 ml/h - 600 l/h
Air 20 °C 1 bar abs.: 0,1 l/h - 6300 l/h
|Wetted Parts Material||Borosilicate glass, 1.4571 (AISI 316Ti) or Polypropylene
Various float materials available
|Gaskets||NBR, FKM, PTFE|
|Process Temperature||-25 °C to + 130 °C|
|Process Pressure||16 bar|
|Ambient Temperature||-25 °C to 80 °C|
|Accuracy acc. VDE/VDI 3513-2(qG =50%)||1,6 % / 2,5 % / 4 % /|
|Suitable for Applications acc. IEC 61508
and Machinery Directive ISO 13849
|Additional Features||Limit switches for low/high alarms
Fine control valves
With the increased interest in green energy and renewable fuel sources, Biodiesel has emerged as a viable alternative to standard petroleum based diesel and home heating oil. It has zero CO2 emissions and can be created from waste vegetable oil or rendered animal fat. The number of Biodiesel processing plants has grown to over 2500 in the US alone.
One of the most widely used methods of monitoring / controlling liquid level in a tank is the use of Bubble Tubes with Pressure or Differential Pressure Transmitters. A small but uninterrupted flow of air or inert gas is forced down through a dip tube which extends to near the bottom of the tank. The back pressure of the introduced gas is a function of the liquid level or head in the tank. The pressure transmitter takes the back pressure and converts it to an analog signal that is sent to the control room. The plant operator will then be able to monitor the exact level in the tank.
For nearly 100 years, ozone has been used all over the world for water sanitation. It is nature's strongest oxidizer and has a byproduct of pure oxygen. Chlorine, on the other hand, is a very effective, time-proven chemical, but is ineffective against hard-to-kill microorganisms such as cryptosporidium; it also has some unpleasant byproducts. Ozone is recognized among the strongest, fastest, commercially available disinfectants and oxidants for water treatment, Ozone is used in both the disinfection of drinking water and bacterial killer in waste water treatment. Ozone is used in a large percentage of Municipal water treatment facilities as well as Pharmaceutical companies where pure water is essential.
The Variable Area Flowmeter is one of the oldest and mature principles in flow measurement with its simple design: a float rises inside a conically shaped glass tube as the flow increases and its position on a scale can be read off as the flow rate.In the 1990s, Yokogawa strengthened its focus on flowmeters through cooperation with and the eventual acquisition of the German flowmeter manufacturer ROTA. In so doing Yokogawa gained access to 100 years of flowmeter expertise and completed its flowmeter portfolio by adding the Rotameter (variable area) and Rotamass (Coriolis) product lines.
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