3GR screw pump for conveying temperature ≤ 120 ℃, viscosity 3-760cst, three screw pump without solid particles, non-corrosive, lubricated medium. 3GR three screw pump is mainly used in fuel delivery, hydraulic construction machinery and heavy machinery industry, 3GR three screw pump ship and offshore engineering, oil tank and printing and dyeing industry, chemical, petrochemical and other industries. Three screw pump including 3GR three screw pump, 3GC marine and special type, this type of pump is a positive displacement pump, due to the active screw and driven screw on the spiral groove and their interfacing with the inner surface of the three bushing to Several stages of dynamic seal chambers are formed between the pump inlets, which move the liquid axially from the pump inlet to the pump outlet. Three-screw pump and the infusion of fluid step by step, so as to form a continuous, smooth, axial pressure fluid. 3GR three screw pump fluid is a variety of non-solid particles, non-corrosive oils and similar lubricants liquid, the liquid viscosity of 1.2-100E (3.0-760cst), high viscosity liquid can also be heated Viscosity reduction after delivery. Flow range of 0.2-590m / h, the maximum working pressure of 100bar, the maximum temperature of 120 ℃. 1, three screw pump simple structure: a variety of structural forms, three screw pump generally small flow 0.2-6.5m / h, the pump body and bushing together (collectively referred to as pump body) shaft seal for the end of the machine seal. Medium flow pump bushing above is a separate part fixed in the pump body, large flow pump made of double suction structure horizontal installation, the shaft seal according to the different transmission media have end-face mechanical seal and packing seal two. Marine pump installation in the form of horizontal and vertical two, the original motivation for the exchange, DC marine motor. 2, long life 3GR screw pump screw driven by the motor, the main, from the rod without mechanical contact, and driven by the pressure liquid from the shaft around the axis of rotation, the main, from the rod, screw and liner There is a layer of oil film between the protection, so the mechanical friction 3GR triple screw pump life is semi-permanent. 3, the infusion of liquid in the 3GR screw pump for axial uniform linear motion, so the pressure pulsation small, stable flow, low noise, due to the rotation part of the inertia is small, the starting torque and vibration is small 4,3GR three screw pump has a high Inhalation capacity The safety of the 3GR triple-screw pump, motor and piping system, and the above medium-flow screw pumps are all equipped with safety valves, when the pressure exceeds the set pressure of the safety valve. High pressure oil will flow back to the pump inlet.
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