English — Forum #714 (Page 62/68)

1. Regarding the balance disk bearing shells of multi-stage pumps - HCBBS Forum
2. After the pump is stopped, why doesn’t the display on the control panel return to zero? It shows a value of around 0.03, with two digits after the decimal point – what’s the reason for this? - HCBBS Forum
3. What are the future prospects for energy savings in centrifugal pumps? - HCBBS Forum
4. Oil level issue in the pump oil cup - HCBBS Forum
5. Starting method of diesel fire pumps - HCBBS Forum
6. How can a high level of vacuum be achieved? What kind of pump should be used? Please take a look - HCBBS Forum
7. How to set the serial communication for a high-speed pump? - HCBBS Forum
8. Advantages and disadvantages of adding hydrogen gas tanks before and after the pump in the chlor-alkali hydrogen system - HCBBS Forum
9. Pump shaft rusting issue - HCBBS Forum
10. Why does starting a cryopump cause the PLC main unit to shut down? - HCBBS Forum
11. What is the difference between clean water pumps and chemical process pumps? - HCBBS Forum
12. The centrifugal pump has low flow rate! I hope the experts here can give some analysis - HCBBS Forum
13. Is the leakage of the pump’s mechanical seal related to the pressure and flow rate of the flushing water? - HCBBS Forum
14. Diaphragm metering pump diaphragm service life - HCBBS Forum
15. Pump current issue - HCBBS Forum
16. I would like to ask the experts: should a vacuum pump used in dryers in explosion-proof areas be installed separately or near the dryer? All are five in number - HCBBS Forum
17. The centrifugal pump does not deliver flow - HCBBS Forum
18. Assisting in the conversion of Roots vacuum pumps to gas jet pumps - HCBBS Forum
19. Ultrasonic level gauge for interlocking the start and stop of pumps - HCBBS Forum
20. Cold pump operation steps - HCBBS Forum
21. Where can I buy original German-imported Rexroth gear pumps? - HCBBS Forum
22. Technical parameters of Ecoler EIPS2 gear pump series - HCBBS Forum
23. Comparison of the advantages and disadvantages of screw pumps for transporting slurry: those with reducers and those without them - HCBBS Forum
24. Features of Rexroth variable piston pump A4VS axial piston pump and order codes - HCBBS Forum
25. Overview of the specifications and features of Weges PVB piston pumps - HCBBS Forum
26. Working principle of self-priming centrifugal pumps - HCBBS Forum
27. We will provide the funding and expertise to help you carry out energy-saving upgrades for your water pumps – would you be interested? - HCBBS Forum
28. Use variable frequency to adjust the flow and head of a centrifugal pump – what is the difference between the following two methods? ? - HCBBS Forum
29. If the seal fluid in a high-speed pump decreases rapidly, what could be the reasons when there is no damage to the mechanical seal itself? - HCBBS Forum
30. Question: Differences between ISG CZ pump models - HCBBS Forum
31. Special lecture on mechanical equipment: “Pumps” – Learn a little every day (10): Pump materials – “Improve yourself”” - HCBBS Forum
32. How can I control a pump’s main outlet pipe, which needs to be divided into 10 branches, so that each branch maintains the same flow rate and pressure? - HCBBS Forum
33. Why are the inlet and outlet pipes of the high-pressure oil pump bent in this way? - HCBBS Forum
34. Technical specifications and installation instructions for Rexroth variable piston pump A10VO - HCBBS Forum
35. Abnormal noise issue with the centrifugal pump motor. - HCBBS Forum
36. Is a frequency converter needed to regulate electromagnetic metering pumps? - HCBBS Forum
37. The heart’s pumping process during the cardiac cycle - HCBBS Forum
38. China Centrifugal Pump Network - HCBBS Forum
39. Will the accuracy be affected if a diaphragm pump is used in front of the vortex flow meter? - HCBBS Forum
40. Special cases of the self-priming capacity of centrifugal pumps - HCBBS Forum
41. Problems with machine pump lubricating oil - HCBBS Forum
42. What role do vacuum pumps play in the production of monocrystalline silicon and polycrystalline silicon? - HCBBS Forum
43. How can the outlet pressure of a pump be higher than the head specified on the nameplate? - HCBBS Forum
44. Liquid chlorine transfer pump - HCBBS Forum
45. Haiteng Pump Industry’s vacuum discharge pumps have become pioneers in the gear oil pump industry - HCBBS Forum
46. Similarities and differences between the master brake cylinder and the wheel brake cylinders - HCBBS Forum
47. Correct installation specifications for vacuum discharge pump pipelines - HCBBS Forum
48. liquid - HCBBS Forum
49. Huaqing introduces: The development trends of stainless steel centrifugal water pumps - HCBBS Forum
50. Urea ammonia pump and ammonium pump manufacturers - HCBBS Forum
51. Can air locking in a centrifugal pump cause the pump to trip? - HCBBS Forum
52. Shielded pumps are used to pump acid - HCBBS Forum
53. What kind of pump is suitable for transporting aviation kerosene? - HCBBS Forum
54. Turbine pump - HCBBS Forum
55. Dry screw vacuum pump – to what are those four valves at the bottom connected? - HCBBS Forum
56. How to select a fire pump correctly? - HCBBS Forum
57. The issue of the inspection cycle for pressure gauges used in pumps - HCBBS Forum
58. Seeking help from pump manufacturers - HCBBS Forum
59. What are the common faults in the maintenance of Dongguan Edward Roots vacuum pumps? - HCBBS Forum
60. Which are the manufacturers of diaphragms or bellows for diaphragm pumps? - HCBBS Forum
61. Problems with the bearing installation method for vertical L1-type high-speed pump 308/TN9 - HCBBS Forum
62. Can a variable-frequency drive be used with a positive displacement pump to achieve a flow rate regulation range of 0-100%? Why? - HCBBS Forum
63. Innovation is an ongoing process; the innovative advantages of Shanghai Hongdong magnetic pumps - HCBBS Forum
64. A field issue regarding diaphragm pumps - HCBBS Forum
65. Propylene oxide transfer pump - HCBBS Forum
66. Solving pump knowledge problems - HCBBS Forum
67. What is the working principle of a Rexroth gear pump? - HCBBS Forum
68. What are the difficulties in providing a standby unit for high-pressure coal slurry pumps used in water-coal slurry gasifiers? - HCBBS Forum
69. How to handle the alkaline water used in water pump systems - HCBBS Forum
70. Can the impeller be damaged when a centrifugal pump runs idle? - HCBBS Forum
71. If there is no flow at the inlet of the shielded pump used to draw flammable materials, could this lead to a fire or explosion? - HCBBS Forum
72. What standard specifies the required clearance between the pump coupling guard and the pump? ? - HCBBS Forum
73. Disc and drum structure of multi-stage centrifugal pumps - HCBBS Forum
74. Stainless steel corrosion-resistant submersible pump - HCBBS Forum
75. High-pressure coal slurry pump - HCBBS Forum
76. Dear technicians, will just a little air at the inlet of a centrifugal pump cause the pump to experience vacuum? - HCBBS Forum
77. The impeller of the ammonium sulfate circulation pump in our plant’s flue gas desulfurization unit is severely corroded; we seek help - HCBBS Forum
78. What are the hydraulic pump repair websites in my country? - HCBBS Forum
79. Generally, which pumps require to be able to be started from a DCS? - HCBBS Forum
80. Failure of check valves in metering pumps when operating under high-pressure conditions - HCBBS Forum
81. How to remedy settlement and tilting of pump foundations in chemical plants? - HCBBS Forum
82. Will the mechanical seal of a centrifugal pump leak when it runs in reverse? - HCBBS Forum
83. Discussion on issues related to the use of gear oil pumps - HCBBS Forum
84. Selection of mechanical seals for hot oil pumps - HCBBS Forum
85. Is it feasible to use an inverter drive to replace the control valve at the pump outlet? If so, how can the energy savings be calculated? - HCBBS Forum
86. Regarding the selection of inlet pumps for filter presses - HCBBS Forum
87. How do flow rate and head decrease after a centrifugal pump is frequency-controlled? ? What is the head-flow curve after frequency conversion? - HCBBS Forum
88. How is the flow rate of the evaporation circulation pump determined in first-effect evaporation crystallization? - HCBBS Forum
89. Centrifugal pump problems - HCBBS Forum
90. Methanol shielded pump (seek experts! ） - HCBBS Forum
91. Can rotating equipment, such as pumps and fans, be directly cleaned with water or steam? ? ? - HCBBS Forum
92. Seeking help with centrifugal pump issues - HCBBS Forum
93. How should I reduce the flow rate of a positive displacement pump? ? Can the inlet and outlet valves be adjusted? - HCBBS Forum
94. Why is a water pump control cabinet needed? - HCBBS Forum
95. Unconventional methods for pump cutting - HCBBS Forum
96. What is the friction pair of a hydraulic pump? What are the requirements for friction pairs? - HCBBS Forum
97. Is it necessary to install a drain line in front of the check valve on the pump outlet pipeline? - HCBBS Forum
98. Issue of dual power sources for fire pumps - HCBBS Forum
99. How is the repair of hydraulic pumps in Komatsu excavators carried out? - HCBBS Forum
100. What should I do if the booster pump doesn’t deliver water? - HCBBS Forum