English — Forum #714 (Page 23/68)

1. Centrifugal pump failure, resonance issue – please help analyze it. Thank you - HCBBS Forum
2. 【Pump Technology Edition: Daily Question】January 29, 2020 (Spring Festival bonus: 10 wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
3. 【Daily Question: Pump Equipment】True or False Question, April 20, 2019 - HCBBS Forum
4. Overcurrent issue in the motor of a single-stage, single-suction centrifugal pump - HCBBS Forum
5. Single-stage centrifugal pump practical training project and scoring - HCBBS Forum
6. What certificates can be obtained in chemical equipment management? - HCBBS Forum
7. 【Daily Question: Pump Equipment】True or False Question, 2019.6.22 - HCBBS Forum
8. Dear heroes, please give me some advice. - HCBBS Forum
9. Pump body insulation issue - HCBBS Forum
10. 【Pump Technology Edition: Daily Question】January 23, 2020 (Spring Festival bonus: 10 Wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
11. Do double-end mechanical seals have self-sealing capability? Why is this? - HCBBS Forum
12. Requirements for static testing of modular mechanical seals - HCBBS Forum
13. Seek selection for a high-temperature pump at 150 degrees Celsius - HCBBS Forum
14. 【Pump Technology Edition: Daily Question】January 19, 2020 (Spring Festival bonus: 10 Wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
15. Who has used super-large vacuum pumps, of any type? Seeking advice. - HCBBS Forum
16. Mechanical seal mutual assistance one-to-one post - HCBBS Forum
17. 【Daily Question: Pump Equipment】True or False Question, 4/29/2019 - HCBBS Forum
18. o-chlorine* * * - HCBBS Forum
19. One question per day; no prize for correct answers, it’s mainly for entertainment - HCBBS Forum
20. Leibao - HCBBS Forum
21. Multi-stage centrifugal blower - HCBBS Forum
22. Location of the pump’s optimal efficiency point - HCBBS Forum
23. Calibration of metering diaphragm pump return device - HCBBS Forum
24. Pump circulation water pipe sight glass - HCBBS Forum
25. Analysis of low inlet pressure at the moment of starting a centrifugal pump - HCBBS Forum
26. Low-pressure pump 53B - HCBBS Forum
27. Feed screw leakage - HCBBS Forum
28. 【Pump Technology Edition: Daily Question】April 3, 2020 (Section benefit: 10 Wealth points as a reward for answering correctly before the answers are revealed) - HCBBS Forum
29. Help: Hydraulic calculation of pumps - HCBBS Forum
30. Common problems of slurry pumps and their solutions – an extremely useful post to save! - HCBBS Forum
31. The newly launched “Talking about Erosion” welcomes everyone to give it their support - HCBBS Forum
32. One question per day; no prize for correct answers, it’s just for entertainment - HCBBS Forum
33. Pulse stirring pump - HCBBS Forum
34. What pump should be used for negative pressure in imports? - HCBBS Forum
35. Precautions for using a muffle furnace - HCBBS Forum
36. The selected flow rate for the water jet condensation pump is 120 m3/h, while the selected flow rate for the centrifugal pump is 160 m3/h. Will it affect the motor? - HCBBS Forum
37. Is there a check valve at the inlet of the liquid ring pump? What causes the rhythmic sound at the inlet while it’s in operation? - HCBBS Forum
38. Centrifugal Pump.ppt - HCBBS Forum
39. Cavitation in centrifugal pumps - HCBBS Forum
40. [Discussion] [Pump Technology Section’s Daily Question] February 20, 2020 (Section perk: 10 wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
41. Why is it necessary to isolate the pump when it is airtight? - HCBBS Forum
42. Dear experts, what is the difference between pumping under vacuum with a sealed system and pumping with an open system when testing vacuum pumps? Test the above ones separately? - HCBBS Forum
43. How to select a slurry pump - HCBBS Forum
44. The relationship between pump cavitation and the inlet pipeline - HCBBS Forum
45. 【Pump Technology Edition: Daily Question】January 1, 2020 (5 Wealth points for correct answer) - HCBBS Forum
46. Is the color of the impeller normal after pickling? - HCBBS Forum
47. Here again to recommend pumps to everyone - HCBBS Forum
48. How extensive is the scope of spare parts? - HCBBS Forum
49. 【Pump Technology Edition: Daily Question】February 11, 2020 (Spring Festival bonus: 10 Wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
50. 【Daily Question: Pump Equipment】True or False Question, 2019.9.9 - HCBBS Forum
51. Vendor to add note stating up to what level grouting is to be done - HCBBS Forum
52. Use and Maintenance of Pumps - Centrifugal Pumps.ppt - HCBBS Forum
53. Introduction and Applications of Various Pump Equipment - HCBBS Forum
54. Pump selection for p-nitro, o-nitro, and mixed nitro in nitrochlorobenzene production plants - HCBBS Forum
55. Selection of pumps for low flow rates and high head - HCBBS Forum
56. Pump selection - HCBBS Forum
57. Seeking advice on the surveying and mapping of mechanical seal shaft sleeves. - HCBBS Forum
58. 【Daily Question: Pump Equipment】True or False Question, 2019.6.14 - HCBBS Forum
59. 【Pump Technology Edition: Daily Question】February 27, 2020 (Section benefit: 10 wealth points as a reward for answering correctly before the answers are revealed) - HCBBS Forum
60. 【Pump Technology Edition: Daily Question】January 14, 2020 (Spring Festival bonus: 10 wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
61. 2-Chapter 2-Basic Theory of Centrifugal Pumps and Fans.ppt - HCBBS Forum
62. Could everyone help explain this small turbine! ! ! - HCBBS Forum
63. Questions about the axial displacement of liquid in single screw pump - HCBBS Forum
64. Centrifugal pumps and energy-saving technologies - HCBBS Forum
65. The pump resonance issue from last time still hasn’t been resolved?? Need help - HCBBS Forum
66. I recommend a cost-effective stainless steel magnetic pump; are the Sanhe or Hongchuan stainless steel pumps better? - HCBBS Forum
67. Knowing the pressure before and after the pipe and the flow rate, can I calculate the flow velocity? - HCBBS Forum
68. 【Pump Technology Edition: Daily Question】February 6, 2020 (Spring Festival bonus: 10 Wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
69. When shutting down a jet pump, should the steam valve be closed first or the extraction valve? What is the reason for this? - HCBBS Forum
70. [Discussion] [Pump Technology Edition: Daily Question] January 7, 2020 (Spring Festival bonus: 10 wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
71. Pump foundation leveling methods and standards - HCBBS Forum
72. I’m a beginner in machine pump maintenance and I’m hoping experts can recommend some books to help me improve my skills* - HCBBS Forum
73. 【Daily Question: Pump Equipment】Weekly Summary May 26, 2019 - HCBBS Forum
74. The reciprocating pump body in the factory was worn and had to be pulled out for wear-resistant coating. - HCBBS Forum
75. Manufacturers of magnetic pump - HCBBS Forum
76. When the specific gravity of the liquid pumped by a centrifugal pump increases, its head ( ) increases, while the pressure at the pump outlet ( ) increases as well. - HCBBS Forum
77. Introduction to oil mist lubrication - HCBBS Forum
78. High-speed pump startup - HCBBS Forum
79. The pressure on the pump pressure gauge increases under closed import and export conditions - HCBBS Forum
80. 【Pump Technology Edition: Daily Question】January 6, 2020 (Spring Festival bonus: 10 wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
81. How to start and stop variable-frequency fans or water pumps? - HCBBS Forum
82. Medium: 10% magnesium oxide – can a pump made of 304 material be used? - HCBBS Forum
83. What is the role of circulating water in a pump? - HCBBS Forum
84. Calculation of the pumping volume for a vacuum pump - HCBBS Forum
85. Liquid nitrogen pump - HCBBS Forum
86. Issues with parallel operation of variable-frequency pumps - HCBBS Forum
87. 【Daily Question: Pump Equipment】True or False Question, May 2, 2019 - HCBBS Forum
88. What impact does connecting a pump with a DN40 outlet to a DN80 pipe have on the pump? - HCBBS Forum
89. Q&A on pumps - HCBBS Forum
90. Problem of insufficient flow rate in high-pressure lean solvent pump - HCBBS Forum
91. CASAPPA axial variable piston pump DVP series - HCBBS Forum
92. Pump selection - HCBBS Forum
93. Solutions for overcurrent in vertical pipeline pumps - HCBBS Forum
94. Vibration diagnosis and working principle of screw compressors - HCBBS Forum
95. One question per day; no prize for correct answers, it’s just for entertainment - HCBBS Forum
96. Coupling - HCBBS Forum
97. Seeking advice on motor vibration issues with vertical pipeline pumps - HCBBS Forum
98. Aijen Luoci fan - HCBBS Forum
99. What are the reasons for the high leakage in the packing seal of the feed pump in a plate and frame filter press? - HCBBS Forum
100. Seeking help regarding the differences between motor types - HCBBS Forum