The FTI turbine flow meters use a proven technology to offer precise and reliable measurement for a wide variety of liquids. The ideal solution when precision, compact size and rapid response time are needed, or when an elevated tolerance to shocks and vibrations are required.
Theory of operation:
Turbine flow meters translate the mechanical action of the turbine rotating in the fluid flow around an axis into a user-readable rate of flow proportional to fluid velocity. The measuring element is set in the path of a fluid stream without severely restrict the path of flow. The turbine flow meter allows generally higher flow rates and less pressure loss than displacement-type flow meters.
Flow Technologies (FTI) has over fifty years experience solving the most difficult applications. FT Series turbine flow meters provide exceptionally accurate and reliable digital outputs.
The turbine wheel is set in the path of a fluid stream. The flowing fluid impinges on the turbine blades, imparting a force to the blade surface and setting the rotor in motion. When a steady rotation speed has been reached, the speed is proportional to fluid velocity.
Turbine flow meters are used for the measurement of natural gas and liquid flow. Turbine meters are less accurate than displacement and jet meters at low flow rates, but the measuring element does not occupy or severely restrict the entire path of flow. The flow direction is generally straight through the meter, allowing for higher flow rates and less pressure loss than displacement-type meters. They are the meter of choice for large commercial users, fire protection, and as master meters for the water distribution system. Strainers are generally required to be installed in front of the meter to protect the measuring element from gravel or other debris that could enter the water distribution system. Turbine meters are generally available for 4 to 30 cm (11⁄2–12 in) or higher pipe sizes. Turbine meter bodies are commonly made of bronze, cast Iron, or ductile iron. Internal turbine elements can be plastic or non-corrosive metal alloys. They are accurate in normal working conditions but are greatly affected by the flow profile and fluid conditions.