The Kobold DKF Series is a robust and economical paddlewheel flow indicator designed for visual monitoring of low-viscosity liquids in pipelines . Its primary application is in situations where flow indication needs to be easily observed from a distance or an elevated position, such as on elevated tanks or overhead piping systems. The instrument features a clear, domed sight glass that provides full 360° visibility, allowing operators to quickly confirm fluid movement from any angle . The brightly colored internal paddlewheel rotates proportionally to the flow rate, offering an immediate visual confirmation of flow status.

Engineered for straightforward and reliable service, the DKF is constructed with a brass body and is available with either a Delrin or PTFE rotor, making it suitable for a range of media . It is designed for in-line installation and is suitable for both horizontal and vertical piping configurations . The indicator connects to the pipeline via standard NPT threads, available in sizes from 1/8 to 1 inch, providing flexibility for various system integrations . Key operating limits include a maximum pressure of 87 PSIG and a maximum temperature of 248°F (120°C), which must be observed to ensure safe and long-lasting operation .

Installation requires adherence to standard practices to prevent damage and ensure accuracy. It is crucial to support the piping adequately at the inlet and outlet of the indicator to avoid inducing stresses on the unit. Pressure surges, such as those caused by rapid system start-up or shut-off, should be avoided . With its simple, functional design and durable construction, the Kobold DKF Series offers a cost-effective solution for essential flow verification across various industrial, commercial, and water treatment applications.