The GO Series Level Switch / Overfill Protection device is manufactured by Bühler Technologies GmbH – a global leader headquartered in Germany specializing in gas analysis equipment and industrial liquid level monitoring solutions. The GO series is engineered to meet the most stringent industrial standards for liquid level control, limit detection, overflow prevention, and dry-run pump protection across hydraulic power packs, chemical reservoirs, and lubrication systems.

Operating on a proven magnetic float principle integrated with precision reed switch technology, the Bühler GO series offers instantaneous and highly reliable detection of liquid level shifts. When the fluid reaches predefined alarm thresholds (high or low limit), the switching element triggers electrical contacts to actuate refill pumps, sound external alarms, or shut down critical equipment—effectively preventing catastrophic pump dry-running or hazardous chemical spills.

Constructed from premium materials such as high-grade 316L Stainless Steel, precision-machined Brass, or chemical-resistant engineering polymers, the Bühler GO series delivers outstanding corrosion resistance, high pressure tolerance, and broad operating temperature ranges. Housed in heavy-duty enclosures rated to IP65/IP67, the instrument ensures long-term operational stability while resisting dust ingress and moisture under harsh plant conditions. Its versatile modular design allows custom stem lengths, multiple switching contact points, and flexible mounting configurations (top or side tank mounting).

The Bühler Technologies GO series is an essential safety component across major sectors including machinery manufacturing, CNC hydraulic power units, power generation, oil & gas, chemical processing, wastewater treatment, and steel production. Implementing this device optimizes process automation, minimizes unplanned maintenance downtime, and safeguards high-value industrial assets.

• Manufacturer: Bühler Technologies GmbH
• Product Line / Model: GO Series
• Device Type: Liquid Level Switch / Float Switch / Overfill Protection Device
• Country of Origin: Germany
• Operating Principle: Magnetic Float with Reed Contact switching
• Wetted Materials: 316L Stainless Steel / Brass / High-grade Polymers (media dependent)
• Operating Temperature Range: -20°C to +80°C (High-temperature options up to +120°C)
• Maximum Operating Pressure: Up to 10 bar - 30 bar (depending on specific model)
• Minimum Fluid Density: ≥ 0.7 g/cm³
• Enclosure Protection Rating: IP65 / IP67 (Dust and moisture resistant)
• Contact Rating: 230V AC/DC, max current 0.5A - 1A, max switching power 40VA
• Electrical Connection: Standard Plug Connector DIN EN 175301-803 / Molded Cable
• Process Mounting: Threaded Flange G1/2", G3/4", G1" or NPT standards
• Switching Contacts: 1 to 4 configurable contact points (NO/NC - Normally Open / Normally Closed)
• Compatible Media: Hydraulic oils, lubricating oils, technical water, coolants, industrial chemicals