Ring-21 High Temperature Level Switch for Confined Spaces
Ring-21 high temperature level switch is designed for liquid level detection in installations where space is limited and process temperature is elevated. It works well in small vessels, narrow pipelines, and compact process connections. Because of its small body and simple structure, it fits applications where larger switches are difficult to install.
This model is suitable for liquids with densities of 0.7 g/cmยณ or higher. It is especially useful in compact liquid systems that need dependable point level detection under higher operating temperatures. As a result, it supports a wide range of industrial level control tasks in confined spaces.
Reliable Tuning Fork Detection at Elevated Temperature
The switch works on the fork resonance principle. During operation, the fork vibrates at its natural frequency. When liquid touches the fork, the vibration frequency drops. The piezoelectric sensing element detects this change, and the electronics convert it into a switching signal. This design gives the device stable and reliable switching performance.
Ring-21 high temperature level switch supports process temperatures up to 150ยฐC (302ยฐF). Therefore, it is a practical solution for users who need compact level detection in hot process environments. Its switching point does not depend on the electrical properties of the liquid, which helps maintain stable signal behavior during routine operation.
Durable Stainless Steel Construction with Low Maintenance
The switch uses robust 316L stainless steel construction, so it provides good durability in industrial environments. It has no mechanically moving parts, which helps reduce maintenance and supports long service life. In addition, its compact body makes it especially useful in pump protection systems and process points with restricted installation space.
Because the design is simple and reliable, users can install the device quickly and operate it with minimal maintenance effort. This makes it a cost-effective choice for industrial level switching in compact and elevated-temperature applications.
Typical Applications
Ring-21 high temperature level switch is widely used in overflow protection, leakage detection, pump protection systems, and compact liquid level control tasks. Typical applications include pipelines, small vessels, and confined-space process connections with operating temperatures up to 150ยฐC (302ยฐF). It is especially useful in non-explosive environments where users need reliable switching in limited spaces and hot process conditions.
For other liquid level switching solutions, see the [Ring-21 Compact Liquid Level Switch] and the [Ring-11 High-Temperature Fork Level Switch]. The device also follows the basic tuning fork detection principle used in many [vibrating fork level switch] applications.
