3GR screw
- Brand: Park TaiBang
- Type: 3GR25×4
3GR screw Overview:
Three screw including 3G Universal , 3GC ship type and special type . Three screw rotor positive displacement pump , because the active screw driven screw spiral groove with each other and their engagement with the surface of the bushing three holes , was able to -log dynamic seal is formed between the inlet and outlet chambers , these animals will continue to seal the liquid chamber by the axial movement of the pump inlet to pump outlet , and to boost the gradual infusion of the body , thereby forming a continuous, smooth , axial movement of the pressure fluid.
3G three screw pumps for medium and performance range :
The infusion 3GR screw body for a variety of solid particles, lubricating oils and similar non-corrosive liquid oil , the viscosity of infusion 1.2 ~ 100 ° E (3.0 ~ 760cst), also by the addition of high-viscosity liquids after transporting temperature viscosity . flow range 0.2 ~ 590m3 / h, maximum working pressure 100bar, maximum temperature 150 ℃.
3G three screw structure
1, the structure is simple : with a variety of structural forms , generally small flow 0.2 ~ 6.5m3 / h, pump and pump bushings into one ( collectively pump ) , seal mechanical seal over medium flow pump bushings. as a separate part fixed on the pump body , high flow pump more than double suction structure made of horizontal installation , seal sealing two mechanical seals and packing , depending on the transmission medium . marine pumps are installed in the form of horizontal and vertical two kinds , the original motivation for the AC and DC marine motors.
2 , long life: three screw initiative screw driven by a motor , Lord, from no mechanical contact between the rods , and driven by the pressure of the liquid from the transmission lever rotates around the axis , Lord, from the rod between the screw and liner Individually protective layer of film between sets , and thus minimal mechanical friction pump life called semi-permanent .
3 , the fluid in the pump body axially uniform linear motion , so the pressure pulsation , flow stability , low noise , due to the inertia of the rotating parts small , the starting torque and low vibration .
4 , has a high suction capacity high efficiency .
5 , in order to ensure the safety of pumps, motors and piping systems , medium flow above all with screw valve when the pressure exceeds the set pressure of the safety valve , high pressure oil will flow back to the pump inlet .
Three screw pump performance parameters
● 3G three screw Series Description
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系列特征
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系列代号
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结构形式
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适用范围
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性能范围
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流量
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最高工作压力
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滑油系列
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3G 3GC
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卧式单吸
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20~150cst 润滑油类及润滑性液体
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0.3-94（m3/h）
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60（bar）
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3GS 3GCS
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卧式双吸
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80-590
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16
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3GCG
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立（悬挂）式单吸
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10-96
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8
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2GCL
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立式柱脚型单吸
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4--96
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8
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3GCLS
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立式柱脚型双吸
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88-306
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8
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燃油系列
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3Gr 3GCr
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卧式单吸
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3~365cst 轻重质燃油类
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0.3-94
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60①
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25②
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3GSr 3GCSr
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卧式双吸
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80-590
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16
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高粘油系列
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3GN
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卧式单吸
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365~760cst 高粘度油类
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1.0-40
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25
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●3G三螺杆泵材料代码
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材料组合代码
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泵体
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衬套
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使用范围
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W1
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HT200
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稀土铜钼球铁
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可低压输送润滑性较差，粘度适当的液体，如燃油等。
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W2
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HT200
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ZL109
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可低压输送润滑性好，粘度适当的液体，如润滑油等。
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W3
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QT450-10
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ZL109
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用于特殊场合（如船用泵）低压输送润滑性较好，粘度适当的液体，如润滑油等。
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W4
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QT450-10
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稀土铜钼球铁
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用于特殊场合（如船用泵）低压输送润滑性较差，粘度适当的液体，如燃油等。
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W21
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HT200
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ZCuSn5Pb5Zn5
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可在较高压力下输送润滑性较差，粘度较低的液体，如重油、燃油等。
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W23
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QT450-10
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ZCuSn5Pb5Zn5
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用于特殊场合（如船用泵） 有较高压力下输送润滑性较差，粘度较低的液体，如重油、燃油等。
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