Ring-11 stainless steel level switch is designed for industrial applications that require a durable housing, stable switching, and long service life. It is especially suitable for environments with corrosion, abrasion, vibration, or elevated temperature. Because the housing is available in SS304 and SS316, users can choose a configuration that matches the process conditions.
The switch uses the proven tuning fork resonance principle. Piezoelectric devices drive the fork into vibration and detect changes in its resonant frequency. When liquid touches the fork, the vibration frequency drops. The electronics detect this change and convert it into a switching signal. This method provides stable point level detection across many industrial liquid applications.
Reliable Detection in Difficult Process Conditions
The fork body is only 40 mm long, so the device fits pipelines, compact vessels, and other restricted installation points. It can detect liquids with densities as low as 0.5 g/cmยณ. It also performs well in foam, bubbles, viscosity, oscillation, and other process disturbances. Therefore, it is a practical choice for applications where reliable switching is more important than frequent maintenance.
The fork is precisely tuned before delivery, which helps improve sensitivity and keep switching performance consistent. In addition, the switch supports a wide range of standard industrial liquids and can also be supplied with optional Hastelloy C-22 wetted parts for more corrosive media.
Stainless Steel Housing for Safety, Hygiene, and Durability
The stainless steel housing is designed for mechanical strength, easier cleaning, and dependable use in demanding industrial sites. Its polished, crevice-free design also supports applications where hygiene and enclosure quality matter. This makes it suitable not only for heavy-duty industry but also for selected sanitary process environments.
The device supports relay, two-wire, NAMUR, and transistor outputs. It also carries SIL2 / SIL3, intrinsically safe, flameproof, CE, and EAC certifications. In addition, it complies with HACCP and 3A requirements for suitable hygienic applications. These features help users integrate the switch into both standard and safety-critical systems.
Typical Applications
This stainless steel tuning fork switch is widely used in coal mining hydraulic and lubrication tanks, automation and machinery hydraulic systems, shipboard tanks, chemical and pharmaceutical vessels, food and beverage process lines, and oil or coolant systems in power plants. It is especially useful where users need a rugged housing, stable switching, and reliable operation in harsh field conditions.
For other liquid level switching solutions, see the [Ring-11 Liquid Level Switch] and the [Ring-11 Corrosion-Resistant Fork Liquid Level Switch]. The device also uses the proven [tuning fork level switch] principle for stable point level detection.
