The positioning cylinders operate a valve that controls the mass flow needed to drive machinery. Voith I/H  converters ensure very precise and highly dynamic control of the mass flow. I/H converters change a constant input pressure into a variable output pressure. A standard 0/4 – 20 mA signal specifies the output pressure.  The major components of the I/H converter are a hydraulic unit and a force-controlled electromagnet. The I/H converter features a simple and compact design. This ensures reliable operation. The Mean Time Between Failures (MTBF) for Voith I/H converters is over 600 years. Your equipment runs for a very long  period of time without unplanned downtime; availability is increased. Specifications Flow rate Up to 140 l/min at 1 bar differential pressure Input pressure Up to 70 bar Supply voltage 24 VDC Current consumption 1.0 A (3.0 A for t < 1 s) Input signal 0/4 – 20 mA Ambient temperature -20 to +80°C (standard version, not rated for use in potentially explosive areas) Explosion proof rating (optional) ATEX (II 2G IIC T4) or FM/CSA (Class 1, Div. 1, 2, Group B, C, D,Temp. Code T4) Protection class IP 65 Safety class SIL 2 (on request)