Possess certifications, training, and working knowledge of NFPA codes and standards including NFPA13, 2001, 70, and 72.Since Pascal put forward the basic law of pressure transfer for static liquid, this concept has been developed for nearly four centuries.With the advantages of a high power density, large force output, and easiness to actualize linear motions, hydraulic transmission systems are widely used in industrial hydraulics and for mobile hydraulic machinery. Modern hydraulic control technology began after World War I. Hydraulic valves are critical components in many hydraulic systems where the flow rate, pressure, or actuators need to be controlled. There are many types of electro-hydraulic control valves, like proportion valves, flapper-nozzle valves, or other valves with electronic controllers. With the development of materials, manufacturing, electronic technology, and computer technology, more power has been injected into electro-hydraulic control valves along with new demands. Hydraulic valves are being developed to adapt to the changing world and market, which has become more versatile and powerful, as shown in Figure 1. Industry 4.0 was proposed by the German government from a project with a high-tech strategy, which promotes the computerization of manufacturing. #Hass hydraulic calculation software license#.#Hass hydraulic calculation software code#.#Hass hydraulic calculation software software#.
