Vent Guard Protects Flow Level Indicators

Vent Guard Protects Flow Level Indicators | Flowmetrics

Liquid level gauges report the amount of flow through a pipeline, or the amount of liquid in a container. To accomplish this goal the gauge needs to be vented regularly, and often enough this venting is to the atmosphere. To protect gauges, and the liquid inside of the container, from dust and debris in the air a gravity vent guard is installed.

The simplest level indicator gauge for liquid reservoirs is attached to the container and fills to the same level as the container, but must be subjected to the same pressure as the container to work. Because most reservoirs are not held at pressure or vacuum, both the gauge and container are vented to the atmosphere to equalize the pressure. The problem with venting is that it leaves the liquids open to contamination.

The gravity vent guard was first utilized in a coal burning power plant to prevent fine coal dust suspended in the air from entering the gauge.

 

Click here for the full article from Industrial Equipment News.

Radar Level Gauge for Liquids

Radar Level Gauge for Liquids | Flowmetrics

The VEGAPULS 64 is a contactless level transmitter that uses radar to detect the level of a container up to 30 meters away with an accurancy of +/- mm. This level of accuracy is unparalleled and due in fact to a tighter beam angle. Other comparable radar liquid level transmitters have an average beam angle of 10°, but the VEGAPULS 64 has a beam angle of 3° allowing for better readings.

 

The new radar level sensor VEGAPULS 64 is not only ideal for wide use in the chemical and petroleum sectors, but also in the pharmaceutical and food industries, because of its hygienic materials and design. The relevant approvals for this sector, such as 3A and EHDEG, are available at launch. Thanks to its small antenna – the diameter of the smallest version is no larger than a 1-euro coin – it results in very compact process fittings, which means the sensor can offer an interesting alternative for confined spaces in small vessels.

 

Click here for the full article on Control Engineering.