English — Forum #350 (Page 17/163)

1. Conjusen TxsPuls Video Tutorial - HCBBS Forum
2. Communication failure of the operation panel for the UOP reforming CRCS system (APACS) - HCBBS Forum
3. 【Weekend Share-21】How to determine the installation height of flammable and toxic gas detectors? - HCBBS Forum
4. May dusts with different explosion-proof requirements be used together? - HCBBS Forum
5. Dinghua Radar Instrument Training School: Why is it necessary to set the dielectric constant for radar level gauges? - HCBBS Forum
6. High-compression radial ball valve for offshore platforms - HCBBS Forum
7. Jinchuan Group has obtained a patent for an automatic nitrogen replenishment system for instrument air in air compressors, enabling the nitrogen system to automatically supply instrument air - HCBBS Forum
8. 【2025 Industrial Automation Updates】ABB releases an important document: the first Environmental Product Declaration (EPD) for its DCS (AC800M series) controllers - HCBBS Forum
9. Instrument names in the PID diagram - HCBBS Forum
10. 【2025 Explosion-Proof Accessories】Core Performance and Selection of Explosion-Proof Flanges - HCBBS Forum
11. How to understand SIL classification reports and SIL-certified instruments - HCBBS Forum
12. Bellows pneumatic valve dedicated for chlorine gas - HCBBS Forum
13. [Science Popularization] Understand the SIS Safety Instrumented System with one diagram! - HCBBS Forum
14. Fine Chemical Project Management – Complete Version - HCBBS Forum
15. Use of cables for pneumatic on/off valves - HCBBS Forum
16. 【Ten Years of Rapid Development in Chemical Processing Equipment】The first domestically produced high-pressure multi-point flexible thermocouples were successfully applied at Huabei Petrochemical from 1708 to 2024 - HCBBS Forum
17. 【Y2025】Method for setting the instrument damping time parameter - HCBBS Forum
18. Steam flow measurement data (flow, pressure, temperature) is transmitted to the DCS via RS485 - HCBBS Forum
19. Signal for secondary alarm of flammable toxic gases and interlock with fans - HCBBS Forum
20. [Weekend Share - 8] How to lap grounding flat steel, round steel, and angle steel? - HCBBS Forum
21. How to set the parameters of a radar level gauge correctly? - HCBBS Forum
22. Those who have instruments for layering and phase separation in reaction vessels, please reach out for cooperation - HCBBS Forum
23. 【2025 Book Recommendations】Chemical Process Safety Assessment - HCBBS Forum
24. Online analysis of hydrogen content in medium-pressure steam - HCBBS Forum
25. How to Choose a HART to MODBUS Local Display Converter: Function and Application Guide - HCBBS Forum
26. Regarding the blast-resistant design of control rooms - HCBBS Forum
27. Selection principles for FF buses and FF bus instruments - HCBBS Forum
28. Are there many challenges in measuring the liquid level in chloromethane storage tanks? See how the ELL sonar-type external level gauge solves it! - HCBBS Forum
29. Do two five-way solenoid valves with dual control require a holding valve? - HCBBS Forum
30. 【2025 Control Valves】Flow direction and installation orientation of control valves” - HCBBS Forum
31. 【2025 Knowledge Accumulation】7. Issues in mass flowmeter measurement - HCBBS Forum
32. Problems with low-voltage distribution systems - HCBBS Forum
33. DCS program control issues - HCBBS Forum
34. Issues with Micro Motion mass flowmeters - HCBBS Forum
35. How to measure the vibration condition of the material delivery pipeline - HCBBS Forum
36. May I ask, what is the difference between the Bentley 3500 frame with 40 cards and one with 50 cards? - HCBBS Forum
37. Fire prevention issues related to packing in ball valves used in the chemical industry - HCBBS Forum
38. Control requirements for inspection instruments - HCBBS Forum
39. Preamplifier wiring for Bentley displacement probe calibration - HCBBS Forum
40. Valve selection - HCBBS Forum
41. Recommendations for domestic external-type level gauges - HCBBS Forum
42. Problems with flow control valves - HCBBS Forum
43. Selection of platinum resistance chips - HCBBS Forum
44. Does the safety valve operate after or before the safety instrument system? - HCBBS Forum
45. I’m looking for a presentation on the installation standards for automatic control instruments in construction companies in the oil and petrochemical industry! - HCBBS Forum
46. Control valve - HCBBS Forum
47. DCS communication card - HCBBS Forum
48. Issues regarding wire conduits in explosion-proof environments - HCBBS Forum
49. Do seismic pressure gauges need to be sealed with lead? - HCBBS Forum
50. Explosion-proof design for on-site cabinet rooms - HCBBS Forum
51. Consult regarding the selection of flowmeters - HCBBS Forum
52. How to select gas analysis instruments? These points are very important - HCBBS Forum
53. Can E+H’s dissolved oxygen measurement be used to determine the oxygen content in a mixed gas? - HCBBS Forum
54. Looking for samples of ozone concentration analyzers and contact information for manufacturers - HCBBS Forum
55. Toxic gas alarm setpoint - HCBBS Forum
56. How do you people obtain Chinese instruction manuals for imported products from abroad? - HCBBS Forum
57. Tokko ultrasonic thickness gauge - HCBBS Forum
58. Is there any specification stating that signals indicating the status of electric pumps that are not involved in cascade control cannot use 485 communication? - HCBBS Forum
59. Temperature sleeve ASME PTC 19.3 TW calculation software - HCBBS Forum
60. Analysis of the Application Guide for External Level Gauges - HCBBS Forum
61. Optical fiber communication PLC and DCS - HCBBS Forum
62. Instrument panel - HCBBS Forum
63. How does a pressure gauge at a high location display readings at a low location? - HCBBS Forum
64. On-site area alarm - HCBBS Forum
65. Can all pressure gauges be treated as those subject to strict inspection? - HCBBS Forum
66. On the measurement issues of vortex flowmeters - HCBBS Forum
67. Configuration issues with Zhejiang University Zhongkong 300 system - HCBBS Forum
68. When a raised-face flange is mated with a flat-face flange, measures should be taken to prevent the flanges from over... - HCBBS Forum
69. To measure the viscosity of a liquid, what kind of float should be used - HCBBS Forum
70. Valve selection - HCBBS Forum
71. I will soon learn the Foxboro system on the Win platform; QQ: 377085819 - HCBBS Forum
72. Application of Dinghua G80 radar level gauge in vertical tanks for p-nitrotoluene - HCBBS Forum
73. Differences in the application of servo level gauges and radar level gauges - HCBBS Forum
74. Mobile phone – on-site pipeline measurement, axonometric drawings, single-line diagrams, comprehensive quantity lists - HCBBS Forum
75. For precise measurement, mass flow meters are the preferred choice; however, other types of flow meters need to be selected based on the properties and value of the liquid medium - HCBBS Forum
76. Dongguan Dejia Instrument recycles second-hand test instruments - HCBBS Forum
77. 2 questions about surge protectors - HCBBS Forum
78. Cascade control - HCBBS Forum
79. Do scale weights fall under the category of measuring instruments subject to mandatory calibration? - HCBBS Forum
80. Oxygen detector issues at the oxygen station - HCBBS Forum
81. Looking for a bottom slag discharge and material discharge valve - HCBBS Forum
82. Instrument heating and insulation - HCBBS Forum
83. The Dinghua DHE-FT tuning fork level switch enables efficient and safe liquid monitoring in process pipelines - HCBBS Forum
84. As shown in the figure, regarding the sealing issue of the ASCO two-way three-port solenoid valve - HCBBS Forum
85. Bentley probe - HCBBS Forum
86. How Control Instrumentation Engineers Can Learn Systematically* (Petrochemicals) - HCBBS Forum
87. Why is the pressure before the control valve lower than that after it, according to the control valve data sheet? - HCBBS Forum
88. Issues with the 4 fans installed in the cabinet - HCBBS Forum
89. Do electric contact pressure gauges need to have their separators removed and sent for inspection every six months? - HCBBS Forum
90. “Has the standard SH/T 3160-2009 \"Code for Explosion Protection Design of Petrochemical Control Rooms\" been repealed? What is the alternative standard? - HCBBS Forum
91. 【Sea and River Safety Discussion】A020 – Ergonomic Issues in Control Rooms - HCBBS Forum
92. 【Ten Years of Rapid Development in Chemical Equipment】The plant-wide control system for the Tianjin Nangang ethylene project was successfully put into operation from 2014 to 2023 - HCBBS Forum
93. 【Ten Years of Great Progress in Chemical Technology】2022–2023: China Petrochemical’s First Full-Process Intelligent Control System for Chemical Plants Put into Use - HCBBS Forum
94. Seeking instrument control experts with experience in the petrochemical industry to collaborate - HCBBS Forum
95. Do armored cables not require partitions? - HCBBS Forum
96. Issues regarding the selection of level gauges for hydrogenation reactors - HCBBS Forum
97. Is there such a thing as pressure before and after the cut-off valve? - HCBBS Forum
98. Do the so-called independent level gauges and pressure transmitters in the SIS system require separate pressure transfer pipes? - HCBBS Forum
99. Rotary flow meter - HCBBS Forum
100. Why does the power cable for 4-wire instruments have a shielding layer? - HCBBS Forum