The Maxton UC4MR hydraulic elevator control valve was designed to meet changing elevator industry low flow applications. Use the Maxton valve calculator for valve sizing to the job specifications. The greater variation in temperature and pressure seen in today's market demands much more from the elevator control valve design. The first steps of improvement are to regulate the area of greatest variation, down main speed, using a down compensated "down speed regulated" control valve. The UC4MR offers individualized adjustments, high efficiency solenoids, integrated relief valve, and allows the user to have direct adjustment control of loaded and unloaded down main speeds without applying a load. Uses include roped hydraulic elevators, Federal Government jobs, military jobs, etc. JACK port is located to the left - TANK port straight across to the right - PUMP port at the bottom. Solenoid - Square pattern.