Keeping environmentally safe hydraulic fluids in their place
By M. F. Wangsgaard
Vegetable oils eliminate some environmental concerns, but water contamination from them (or other fluids) attacks urethane seals. A new urethane material solves th...
Swimming has long been recognized as an almost ideal form of exercise. Weight-free exercise in an aquatic environment provides a superior cardiovascular workout without muscle or joint stress due to impact with the ground. Most people find swimmi...
Electrohydraulic proportional valves from different manufacturers may be nearly identical — except for the pin assignments of their electrical connectors. That can spell big trouble.
Noise originates at the pump, and system designers can't do much about that, but they can deal with several additional factors that contribute to and determine the final noise level.
