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Coriolis Flow Meters and their Popularity in Indonesia

Several years ago, it was difficult to find manufacturers who made larger sized Coriolis flow meters. Although they were available, the cost impact often made the end users shy away from the idea. In the past few years, this has all changed. Now it is a common sight to see 6 inch and 10 inch Coriolis mass meters. One of the driving factors for the wider acceptable of the larger sized Coriolis meter is the disparity between the traditional PD meters has been considerably reduced.

Traditional PD Meters

Of course, there is no issue if the end users or operators opt for these traditional solutions. The bi-rotator positive displacement types are alive and well. Many of the reasons why our customers choose the more traditional method is simply because they know the technology and they trust it. They are used to it!

The PD meters have their own special counters which are easy to use and very easy to understand. On top of that, these counters often do not require a power source to keep running. This is definitely an advantage in areas of the world where electrical power often presents an issue, especially the location is remote.

Mass Meters for Indonesia

When two parties are buying and selling oil or fuel, it is important that they have the option to not only measure the flow velocity and flow rate but also literally the “weight” or the density of the products. One advantage of the Coriolis mass meter is it’s ability to to measure both the mass flow (e.g kg/cm3 ) and also the density. In API terms, the words API gravity is the more common method of expressing the density at a specific temperature. The users have the option now of not only knowing the amount of liquid flowing through the pipe but also the type of liquid. Very often, a seller will not want to be economically compromised by individuals who have taken it into their own hands to start their own salary improvement schemes. So, the density of the product can be reported on a continual basis and thus, the owners or operators will know that the product being delivered is actually the product that was promised. It is not uncommon to discover that a different excise or tax is to be applied to a certain hydrocarbon based liquid e.g gasoline and diesel are different products.

Installation of Coriolis meters

Someone who is operating a plant will often not have the time or resources to take a deeper look at their options. There are certain factors to consider when deciding which type of technology to use and who is going to install it. Despite the fact that manufacturer’s all claim to have very accurate devices (and this is not disputed) , there is also some thinking to be done before decided to take the leap into “all Coriolis” and nothing else. This is where consultants must look more closely at accuracy versus economic impact. When economics takes over, its very common to see a smaller sized Coriolis supplied by one manufacturer and a larger one supplied by another. In these cases, the clients are not tied down to just one brand or one solution. In fact, the clients in Indonesia have often saved a lot of money by having the freedom to talk to other vendors to make up a complete package.

Our support team is a solution provider, familiar with all types of flow measurement technologies and with access to a host of manufacturers who are willing to cooperate with us to provide the best possible answer to a situation where operators actually do want to improve their measurement/metering but prefer to take a more practical or holistic approach to the task at hand.

In general, the issue is more to do with the availability of resources and not only a product. With the world moving at a pace that is faster than most can catch up with, this is showing to be the way forward.


Both coriolis meters and PD meters can be used for batch control of an oil or fuel. However, many users opt for a traditional PD meter when faced with the task of installing a flowmeter in a situation where accuracy is required in a liquid with viscous properties.  This is exactly what a particular company has opted for in Miri, North Sumatra. Once the principle of operations for a PD meter is understood, it becomes obvious why it is a first choice for many oil applications. In addition, an oval gear meter is often a better choice when there are budget constraints. How does the PD meter work? Here we present an example of a PD meter using the oval gear approach. There are several types of PD meters available such as a rotary vane and nutating disc but one of the most popular ways to solve a viscous oil flow scenario is to opt for the oval gear.

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