DC41 Central Station
The Dualine DC41 system is designed to meet the rigorous requirements of heavy industry. The system can supply either oil or grease to such installations as bar mills, billet mills, blast furnaces, and sintering machines. The DC41 and DC42 systems have much in common. They use many of the same parts and have many similar operating characteristics. They differ in the way they alternately pressurize and relieve (reverse) the two supply lines as well as the way they control maximum system pressure and end the lube cycle. On DC42 systems, reversal is by a solenoid reversing valve and on DC42 systems by a hydraulic reversing valve. On DC41 systems, pressure is controlled by a pressure switch (one is installed on each line) that actuates the reversing valve and stops the pump motor when system pressure rises to its setting. On DC42 systems, pressure is controlled by the reversing valve. The valve opens a micro switch stopping the pump motor when system pressure rises to its setting. Each system has a timer control tailored to meet its specific requirements.