Centrifugal pump hydraulic design to solve three problems: 1) the main parameters of the flow components, as well as the best ratio of each part of the components. 2) flow design, selected in the hydraulic design process flow components selected flow rule. Such as the distribution of the circumferential velocity of the volute, the distribution of the impeller ring flow and the distribution of the axial velocity. These distributions are pre-design assumptions. 3) Impeller blade and runner profile design, to provide over-current parts of the processing wood map. Centrifugal pump in the hydraulic design process should be as far as possible to achieve: 1) to ensure that the design parameters to meet the requirements of flow and lift; 2) the centrifugal pump has good energy performance, that is, higher hydraulic efficiency, and high efficiency zone As wide as possible; 3) good cavitation and cavitation erosion, reduced efficiency due to cavitation reduction; 4) good stability with low pressure pulsations and noise values; and 5) as small dimensions as possible to reduce Cost; 6) to meet the requirements of some special operating conditions, such as deep wells, diving and high sediment flow and other special requirements; 7) to meet the manufacturing requirements of the installation process.
Elegant low profile high power LED linear luminaire for floodlighting, wall wash and wall graze applications to buildings, bridges, monuments. Light projection distance over 10 meters with choice of Cree or Lumileds LEDs in a variety of colours and beam angles for selection. Extruded aluminum profile of high efficient thermal dissipation design with clear tempered glass cover and anti-glare shield. Customizable housing color and length. Various stainless steel mounting brackets with up to 180° tilt angle adjustment for easy installation and light projection setup. Optional anti-glare shield. Seamless line of light when connected in cascade without dark spaces at joints. DC 24V input. DMX control. High brightness contrast level for smooth and consistent color change effect. Preventive vent, waterproof connectors and rated IP66.