Directly actuated proportional controller for regulating the cooling-water return temperature.Raising the return temperature reduces the consumption of coolant and energy and lowers investment costs (for new systems).Also suitable for the demand-based supply of coolers connected in parallel.Body in straight through design with solids expansion thermostat and adjuster.CW 41 with pressure gauge (0-6 bar) and thermometer (-30 to +100°C) as standard.CW 41 with diaphragm actuator (MCW 41), which can also be retrofitted.