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  • Difference between Ordinary motor and High-efficiency motor
    Feb 25, 2019 Difference between Ordinary motor and High-efficiency motor
    Ordinary motor: The motor is a device that converts electrical energy into mechanical energy. 70%-95% of the electric energy absorbed by the motor is converted into mechanical energy. This is the efficiency value of the motor, which is an important technical indicator of the motor, and the remaining...
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  • How to choose right Positive displacement pumps？
    Mar 20, 2019 How to choose right Positive displacement pumps？
    What is Positive Displacement Pump? It is a pump that reciprocates or rotates in a pump body by means of a piston, a plunger, a diaphragm, a gear or a van, etc. to periodically change the volume of a plurality of working chambers in the pump body, and alternately suck and discharge the liquid. How p...
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  • How to deal with unreasonable process pump design and non-optimal operation?
    Feb 25, 2019 How to deal with unreasonable process pump design and non-optimal operation?
    How to deal with unreasonable process pump design and non-optimal operation? Practical experience tells us that the use of centrifugal and positive displacement pumps in process often underestimates the challenges in planning design, assembly, operation and culture. Experienced operators have repeat...
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  • Flange Connection for Bonve Lobe Pumps
    Mar 20, 2019 Flange Connection for Bonve Lobe Pumps
    Flange connection Machinery industry standard JB/T81-94 PN 1.6MPa (16bar) Inside nominal diameter(DN) B C D1 D2 D3 f n L 10 10 14 40 60 90 2 4 14 15 15 14 45 65 95 2 4 14 20 20 16 55 75 105 2 4 14 25 25 18 65 85 115 2 4 14 32 32 18 78 100 140/135 2 4 18 40 40 20 85 110 150/145 3 4 18 50 50 22 100 12...
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  • Clamp Connection for Bonve Lobe Pumps
    Mar 22, 2019 Clamp Connection for Bonve Lobe Pumps
    Clamp Connection DIN standard specification dimension D1 D2 DN15 15 34 DN20 19 34 DN25 25 50.5 DN32 31 50.5 DN40 37 50.5 DN50 49 64 DN65 66 91 DN80 81 106 DN100 100 119 DN125 125 145 DN150 150 167 SMS standard specification dimension D1 D2 ¢25 22.6 50.5 ¢32 31.3 50.5 ¢38 35.6 50.5 ¢51 48.6...
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  • Screw Connections for Bonve Lobe Pumps
    Mar 22, 2019 Screw Connections for Bonve Lobe Pumps
    Screw type connection ISO standard specification dimension D1 D2 1 ” 22.6 37.1*4  TACME 1 1/2 ” 35.6 50.6*4  TACME 2 ” 48.6 64.2*4  TACME 2 1/2 ” 60.3 77.7*4  TACME 3 ” 72.9 91.2*4  TACME 4 ” 97.6 118.4*4 TACME DIN standard specification dimension D1 D2 DN15 15 34*1/8 DN20 1...
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