Hydac HFS Series 2100 electromechanical flow switch

The Hydac HFS Series 2100 electromechanical flow switch for oils and viscous media is based on a variable area float measurement principle.

The test medium moves a spring-loaded float in the direction of flow, depending on the flow rate. A reed contact is fitted to the outside of the device and is therefore separate from the flow circuit. When the magnet inside the float reaches the preset position, the reed contact switches.

To protect the device from external influences, it is cast into a steplessly variable housing.

The devices are designed to be capable of monitoring threshold values reliably, even when the viscosity fluctuates. The viscosity may fluctuate between 30 and 600 cSt.

The areas of application include: central lubrication systems; circulation oil lubrication systems; transformers; cooling systems and circuits; lubrication circuits; hydraulic systems; pumps; welding machines and laser systems; chemical industry; research and development.

Features include: accuracy ≤±10% FS; viscosity compensation from 30-600 cSt; arbitrary mounting position; high level of functional reliability; high switching accuracy; stepless switching point setting by user; high-pressure resistance; threaded connection.