English — Forum #714 (Page 21/68)

1. Calculation of the effective net positive suction head for pumps; please help, experts - HCBBS Forum
2. 【Pump Technology Edition: Daily Question】March 4, 2020 (Section benefit: 10 Wealth points as a reward for answering correctly before the answers are revealed) - HCBBS Forum
3. With a circulation rate of 800 m3/h and an estimated gas content in the liquid of 10%, which pump is suitable? - HCBBS Forum
4. Reciprocating, and Roots pumps - HCBBS Forum
5. The edge of the liquid nitrogen pump impeller is severely corroded - HCBBS Forum
6. 【Pump Technology Edition: Daily Question】Question No. 105, published on February 15, 2020, was released incorrectly; it is being republished. A reward of 10 wealth points will be given regardless of whether the answer is correct or not - HCBBS Forum
7. Issues with the circulating water in shielded pumps - HCBBS Forum
8. I have a question for everyone: what is the difference between vertical centrifugal pumps and centrifugal pumps? - HCBBS Forum
9. There is a problem with the installation direction of the pump. The two pumps are usually installed side by side. Can they be installed end to end, or opposite to each other? - HCBBS Forum
10. Operating power issue - HCBBS Forum
11. 【Pump Technology Edition: Daily Question】February 19, 2020 (Section benefit: 10 wealth points as a reward for answering correctly before the answers are revealed) - HCBBS Forum
12. Communication on the progress of domestic low-temperature mechanical sealing technology - HCBBS Forum
13. Newcomer - HCBBS Forum
14. 【Daily Question: Pump Equipment】Weekly Summary, 4/21/2019 - HCBBS Forum
15. I need to create a vacuum in the mixing tank – at a level of -0.096 to -0.01 MPa. How should I choose the vacuum pump system? - HCBBS Forum
16. Everyone, please help choose a pump. - HCBBS Forum
17. Can a dry vacuum pump operate properly when the inlet pressure is higher than the outlet pressure? - HCBBS Forum
18. Deviation between pump inlet and outlet diameters and pipeline diameter - HCBBS Forum
19. What should I do if there are structural columns of the building on the motor side of the installed centrifugal pump? - HCBBS Forum
20. Is it allowed to install a filter at the outlet of a centrifugal pump? - HCBBS Forum
21. Which expert knows the problem with this multi-stage bouncer? - HCBBS Forum
22. How tight should the locking nut of a multi-stage pump be tightened - HCBBS Forum
23. Cavitation problem of low-boiling-point solutions pumped by self-priming pumps in summer - HCBBS Forum
24. 【Pump Technology Edition: Daily Question】March 28, 2020 (Section benefit: 10 Wealth points as a reward for answering correctly before the answers are revealed) - HCBBS Forum
25. Urgently need contact information for slide pump manufacturers - HCBBS Forum
26. Advantages of etched magnetic drive pumps! ~ - HCBBS Forum
27. Please tell me how to remove the dead balance plate and shaft of the multi-stage pump. - HCBBS Forum
28. On cavitation in positive displacement pumps - HCBBS Forum
29. 【Daily Question: Pump Equipment】Multiple-choice Question, May 8, 2019 - HCBBS Forum
30. Green liquid is released from the hydraulic tank - HCBBS Forum
31. Why is a cross-connected fitting provided for the oxygen pump inlet filter? - HCBBS Forum
32. I need expert advice: how many distillation pumps should I choose? - HCBBS Forum
33. 32 53B system: Why is there no pressure in the 32 system? - HCBBS Forum
34. In a centrifugal pump, what is circled? What does it do? - HCBBS Forum
35. Application of oil mist lubrication in motors - HCBBS Forum
36. Company skills competition: CAD drawing, measuring the pump shaft of centrifugal pumps and creating drawings along with specifying all tolerance requirements - HCBBS Forum
37. Difference between the driven end and the undriven end of a centrifugal pump - HCBBS Forum
38. What impact does the backflow of the slurry at the outlet have on the pump when it stops suddenly due to a power loss? - HCBBS Forum
39. Analysis of common faults in chemical process centrifugal pumps - HCBBS Forum
40. Liquid transfer pump - HCBBS Forum
41. [Discussion] [Pump Technology Section’s Daily Question] February 17, 2020 (Section benefit: 10 wealth points as a reward for answering correctly before the answers are revealed) - HCBBS Forum
42. Centrifugal pump impeller damaged - HCBBS Forum
43. 【Pump Technology Edition: Daily Question】March 12, 2020 (Section perk: 10 Wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
44. What are the lifting methods available for hydraulic dispersers? - HCBBS Forum
45. Relationship between outlet pressure and flow rate of hydraulic diaphragm pumps - HCBBS Forum
46. How to deal with a self-priming pump that doesn’t draw in fluid - HCBBS Forum
47. Centrifugal pump inlet diameter? - HCBBS Forum
48. Multistage pump - HCBBS Forum
49. Centrifugal Pump Inspection and Supervision Outline.pdf - HCBBS Forum
50. Regarding the selection of electric diaphragm pumps and manufacturers - HCBBS Forum
51. Liquid pump maintenance - HCBBS Forum
52. Asking questions about pump QH - HCBBS Forum
53. Searching for chemical dosing manufacturers for circulating water in the Jiangsu, Zhejiang, and Shanghai regions. - HCBBS Forum
54. What is the ASTM standard corresponding to 2605 duplex steel? - HCBBS Forum
55. 【Pump Technology Edition: Daily Question】March 19, 2020 (Section benefit: 10 Wealth points as a reward for answering correctly before the answers are revealed) - HCBBS Forum
56. Vibration at the drive end of a single-stage double-suction centrifugal pump - HCBBS Forum
57. Problems that occur when using shielded pumps - HCBBS Forum
58. What is this tube used for? - HCBBS Forum
59. SJD vertical condensate pump alignment problem - HCBBS Forum
60. Who knows the specific parameters of the HE40-160 pump, and what is its performance when used to transport high-temperature asphalt at 350 degrees? - HCBBS Forum
61. Formula for calculating flow rate of centrifugal pumps - HCBBS Forum
62. Is it possible for oil from a hot oil pump to mix into the water when there is no pressure in the circulating water? - HCBBS Forum
63. What is the reason why the bearings of sludge transfer pumps are easily damaged? - HCBBS Forum
64. The self-priming pump discharges air slowly each time it operates; how can this be improved? How to operate it if using a vacuum pump to draw water? - HCBBS Forum
65. The problem of axial tilt of pump shaft alignment - HCBBS Forum
66. Knowledge of pump barring - HCBBS Forum
67. What are the differences between triple-screw pumps, insulated pumps, and asphalt pumps? - HCBBS Forum
68. Magnetic pump is leaking - HCBBS Forum
69. Advantages and disadvantages of 2205 duplex stainless steel and austenitic stainless steel - HCBBS Forum
70. 【Daily Question: Pump Equipment】Fill-in-the-blank question, May 23, 2019 - HCBBS Forum
71. Pipeline resonance elimination - HCBBS Forum
72. 【Pump Technology Edition: Daily Question】January 12, 2020 (Spring Festival bonus: 10 Wealth points for those who answer correctly before the answers are revealed) - HCBBS Forum
73. Reasons for the breakage of impeller blades in liquid ring vacuum pumps - HCBBS Forum
74. 【Daily Question: Pump Equipment】Fill-in-the-blank question, June 27, 2019 - HCBBS Forum
75. Screw pump filter assembly - HCBBS Forum
76. Fluorine lined slurry pump - HCBBS Forum
77. The effect of the suction pump inlet pressure on the pump’s operating condition - HCBBS Forum
78. Seeking help regarding excessive vibration in a double-suction pump - HCBBS Forum
79. Unloading of vinyl chloride monomer - HCBBS Forum
80. Ammonia refrigeration compressor oil pump - HCBBS Forum
81. Features of the three-stage air-cooled Roots vacuum pump, - HCBBS Forum
82. Discussion on installing protective covers on chemical industry pumps - HCBBS Forum
83. Why must secondary grouting be carried out within 24 hours of leveling and alignment? - HCBBS Forum
84. Single-unit test run of the pump sealed per PLAN 32 - HCBBS Forum
85. Effect of surface roughness on the performance of centrifugal pump impellers - HCBBS Forum
86. I have a question regarding pump selection - HCBBS Forum
87. Vacuum system ultimate pressure problem - HCBBS Forum
88. 【Pump Technology Edition: Daily Question】March 23, 2020 (Section benefit: 10 Wealth points as a reward for answering correctly before the answers are revealed) - HCBBS Forum
89. Classic Centrifugal Pump Textbook.ppt - HCBBS Forum
90. 【Daily Question: Pump Equipment】Fill-in-the-blank and True/False Questions, May 14, 2019 - HCBBS Forum
91. Can I ask for help? What type of mechanical seal is this? - HCBBS Forum
92. How to choose a vacuum distillation discharge pump - HCBBS Forum
93. 【Daily Question: Pump Equipment】Fill-in-the-blank question, May 24, 2019 - HCBBS Forum
94. Centrifugal pump balance pipe - HCBBS Forum
95. 【Daily Question: Pump Equipment】True or False Question, May 4, 2019 - HCBBS Forum
96. According to the explanatory notes in clause 5.2.22 of GB50160-2018, the dedicated pumps for tank groups only need to be installed outside the fire dike, at a distance from the tanks... - HCBBS Forum
97. Sealing of the high-pressure lean amine liquid pump PLAN52: the level of the sealing oil tank has risen to the full level, and the pressure is 0.005 MPa. Please analyze the cause - HCBBS Forum
98. 【Pump Technology Edition: Daily Question】March 15, 2020 (Section benefit: 10 Wealth points as a reward for answering correctly before the answers are revealed) - HCBBS Forum
99. Advantageous features of the oil mist lubrication system - HCBBS Forum
100. What type of vacuum pump is needed for an oil press? - HCBBS Forum