A comprehensive guide to understanding all aspects of scraper flowmeter applications

The scraper flow meter is specifically designed to deliver precise flow rates over a defined period. This ability to accurately measure and transfer the media is known as metering. Thanks to this unique capability, many different types—regardless of whether they’re scraper flow meters—can be classified as flow meters. However, most of these are categorized into solenoid, mechanically driven, or hydraulically powered control systems. Typically, scraper flow meters allow users to set, adjust, and even program the flow rate via a dial, touch panel, or other intuitive control mechanisms. Below is a comprehensive guide to understanding the applications of scraper flow meters.

There are two types of scraper flowmeters, depending on the mechanism used to regulate flow. One is the cam-type scraper flowmeter, which adjusts based on the motor’s rotational speed and typically maintains a constant flow rate. The other is the LB-type scraper flowmeter, which allows for adjustable flow by moving a consistent volume of fluid regardless of the engine’s RPM. This adjustment is usually achieved by modifying either the stroke length or the bypass flow.

Scraper Flow Meter: Advantages and Disadvantages

Scraped-disc flowmeters are commonly used for delivering small volumes of fluid because they provide highly accurate flow measurements. In fact, most scrapers are standardized based on gallons moved per minute rather than gallons moved per hour—a key industry benchmark. This level of precision makes scraped-disc flowmeters ideal for a wide range of complex operations.

Scraped-plate flowmeters can handle fluids ranging from thin to highly viscous, and even corrosive liquids—depending on their specific design. Their ability to precisely control flow rates also gives them an advantage when transporting expensive or hazardous materials. However, these flowmeters are not suitable for applications requiring the rapid movement of large volumes of fluid over short periods. Additionally, they’re not recommended for use when handling most types of gases.

Scraper Flowmeter Applications

Common applications of vane-pitch flow meters include industries such as chemical processing, water treatment, food manufacturing, and others that require precise flow measurement. These applications range from chemically treating water in cooling towers or boilers used for drinking water systems to tasks like wastewater treatment, liquid mixing in food processing plants, and minimizing friction losses when transporting oil or liquefied natural gas through pipelines.

Scraper flowmeters are commonly used for chemical metering in processing and agricultural industries. These meters can handle both high- and low-pressure applications, featuring manual as well as electronic stroke control options. Visit our company website to explore our full range of flowmeter products and stay updated on the latest insights into flowmeter technologies, applications, and more. They offer precise measurement of liquid flow rates over extended periods, delivering exceptional accuracy, smooth operation, minimal noise levels, and zero pulsation—while also accommodating high-flow volumes. With a long service life, these flowmeters perform exceptionally well across a wide range of viscosities and remain reliably operational even in crude oils with high water or sand content, effectively preventing failures caused by excessive scaling.