A, 3G screw ship three characteristics: 
 Marine Three Screw Pump, including 3G 3G Universal, 3GC ship type and special type. 3G-style three-screw pump is the rotor displacement pump, the active and driven screw spiral groove on the screw and their mutual engagement with the bushing surface with three holes, to import and export of the pump level dynamic seal between the number of chamber, the sealed chamber will continue to move the liquid from the pump inlet to the pump outlet axial movement, and to progressively boost the body fluid to form a continuous, steady, axial movement of the pressure fluid. 
 2, 3G and marine three screw pumps suitable medium performance range: 
 3G three screw the body fluids for a variety of solid particles, oil and similar non-corrosive liquid oil lubrication, viscosity of the fluid body 1.2 ~ 100 ° E (3.0 ~ 760cst), high-viscosity liquid After the viscosity can be transported through the heating. 
 Flow range 0.2 ~ 590m3 / h, maximum working pressure of 100bar, the maximum temperature of 150 ℃. 
 Three, 3G marine three screw structure: 
 1,3 G Marine Three Screw Pump simple: with a variety of structural forms, usually a small flow of 0.2 ~ 6.5m3 / h, the pump casing and the bushing into one (collectively pump), seal mechanical seal. 
 Medium flow over the pump bushing is a separate part fixed on the pump body, high flow pump is made more horizontal double-suction structure installation, seal according to different transmission media have mechanical seals and packing two. 
 3G marine pump installed in the form of horizontal and vertical, the original motivation for the AC and DC motor ship. 
 2,3 G Marine Three Screw Pump long life: 3G three screw the screw by the motor-driven initiative, Lord, there is no mechanical contact between the rod from, but by the pressure of the liquid driven from the input axis of rotation around the pole, the main from the rod between the screw and bush protection layer of film between the Jie and therefore minimal friction mechanical pump, called semi-permanent life. 
 3,3 G of the Marine three infusion pumps in the pump body for axial uniform linear motion, so the pressure pulsation, flow stability, low noise, due to inertia rotating parts, the starting torque and vibration is very small. 
 4,3 G Marine three-screw pump with high suction capacity. 
 5,3 G Marine three-screw pump is the pump, motor and piping system security, over medium-flow pumps are with safety valve, safety valve when the pressure exceeds the set pressure, high pressure oil pump will return to Inlet.