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- #1760609The welding joint of the reciprocating hydrogen compressor pressure pipe of the hydrogenation unit cracked - HCBBS Forum
- #2971715What are the common pipe fitting standards for plastic-lined pipes in China now? - HCBBS Forum
- #1670128Questions regarding high-temperature stainless steel grades PⅠ, PⅡ, PⅢ - HCBBS Forum
- #1670415Pipe modification heat treatment - HCBBS Forum
- #1670417Pure titanium, low hydrogen, low iron - HCBBS Forum
- #1671528Internal anti-corrosion standards for long-distance oil pipelines - HCBBS Forum
- #1671536Application scenarios of 10# and 20# steel - HCBBS Forum
- #1671592Does the transport of refined oil always encounter resistance? - HCBBS Forum
- #1671720Error in PDMS 12.0 software - HCBBS Forum
- #1671928Sleeve elbow - HCBBS Forum
- #1671937Help: Some minor detail issues - HCBBS Forum
- #1671939Issues regarding standards for fasteners in pressure pipelines - HCBBS Forum
- #1671992Are lock nuts and washers used on the process piping? - HCBBS Forum
- #1672066Choosing between butt welding and fillet welding? - HCBBS Forum
- #1672113At what point does the pipeline need to be replaced - HCBBS Forum
- #1672380Questions regarding the fire separation distances in Table 5.0.13-1 of the Design and Construction Specifications for Au
- #1672728Seek help regarding the meaning of each letter and number in the Z36R-N139/A351-CF8 SEAT/DISC:STLT CL300 valve - HCBBS F
- #1672776Non-metallic pipes - HCBBS Forum
- #1672819Regarding reinforced polypropylene pipes - HCBBS Forum
- #1673836The operating pressure is 1.2 MPa, the diameter is DN350, and the medium is corrosive; if a butterfly valve is to be use
- #1674036Is there a table of the theoretical weight for flanges, or are there any companies that can calculate this weight? - HCB
- #1678686What are the prices of stainless steel pipes: 304, 304L, 316L, 321, 347? - HCBBS Forum
- #1678715Methods of indicating elevation - HCBBS Forum
- #1679121Welding and flange connection of high-pressure, normal-temperature pipelines - HCBBS Forum
- #1679160Issues regarding the flanges of safety valves - HCBBS Forum
- #1679206Can a boiler’s high-pressure valve be removed by heating it? - HCBBS Forum
- #1679207Seek the formula for calculating the diameter of vacuum pipes - HCBBS Forum
- #1679387How do fixed pipe clamps restrict axial displacement? - HCBBS Forum
- #1679558Can a three-eccentric butterfly shut-off valve regulate flow? What is the maximum pressure difference it can handle? -
- #1679588Regarding pipeline anti-corrosion - HCBBS Forum
- #1679629The pressure pipeline grade is too high; the company does not have sufficient qualifications, and the management wants t
- #1679643How does everyone measure flow rate for media with very high viscosity? - HCBBS Forum
- #1679667Design considerations for gas valves - HCBBS Forum
- #1679730Valve jumping problem in pneumatic control valves - HCBBS Forum
- #1679887Problems encountered during equipment maintenance - HCBBS Forum
- #1679904Material of the outer jacket of stainless steel jacketed valves - HCBBS Forum
- #1680095Help! Meaning of the ball valve model Q35HR-J162 - HCBBS Forum
- #1680244What do maintenance workers usually mean when they talk about gaskets in terms of inches and pounds? - HCBBS Forum
- #1680283Are all ordinary water transport pipes GC3 pressure pipes? ? ? ? - HCBBS Forum
- #1680293Is the Pressure Pipeline Supervision Regulation TSG-D0001 not applicable to power pipelines? ? ? Which standard applies
- #1680405How should sewage pipes be designed to prevent freezing? - HCBBS Forum
- #1705267Pressure testing issues with stainless steel valves - HCBBS Forum
- #1708521Valve code translation - HCBBS Forum
- #1710636Help needed: Standards for valves and pipelines - HCBBS Forum
- #1711871Issues regarding the execution standards for elbows - HCBBS Forum
- #1726438In urgent need of various valve standards, specifications, and models? ? ? ? Thank you - HCBBS Forum
- #1726544Welding issues with Monel and stainless steel - HCBBS Forum
- #1726600Are there mufflers with flame suppression functionality? - HCBBS Forum
- #1726667Why do control valves allow internal leakage? ? - HCBBS Forum
- #1726668What is the maximum operating temperature for A335P22? - HCBBS Forum
- #1739996Question: How to design a system to reduce compressed air pressure from 0.7 MPa to 0.05 MPa? - HCBBS Forum
- #1740472Trough graphite gasket code - HCBBS Forum
- #1740614Dear teacher, I would like to ask whether 4130 alloy steel can withstand low temperatures of minus 46 degrees - HCBBS Fo
- #1740618The issue of structural length in GB12221 - HCBBS Forum
- #1740625Difference between grade 20 steel and Q235 for carbon steel flanges and fittings - HCBBS Forum
- #1740645Is unloading much slower than before? Could a Haiyou help analyze what the reason is? ? ? - HCBBS Forum
- #1740677I need an English version of a valve specification sheet with an explanatory section. Thank you - HCBBS Forum
- #1740683Standard elbow – strength verification - HCBBS Forum
- #1740741Process automation applications industry - HCBBS Forum
- #1740776What is the difference between 12976 and 12234? - HCBBS Forum
- #1740821The proportion of valves used in chemical plants in the total project investment and the number of imported valves - HCB
- #1740836What is the maximum flow velocity in the pipeline? - HCBBS Forum
- #1740849BS 534 or BSEN 10224 pipes and fittings - HCBBS Forum
- #1740856Has anyone submitted to \"Chemical Equipment and Piping\"? - HCBBS Forum
- #1740870Selection of wound gaskets for stainless steel flanges - HCBBS Forum
- #1740897Are there design standards for US-standard filters? How is it generally designed? - HCBBS Forum
- #1740900How to determine the heat treatment temperature for carbon steel pipes that require post-weld heat treatment - HCBBS For
- #1740901Are there any standards for the dimensions of flanges on pipes when they exceed DN2000? - HCBBS Forum
- #1740905Manufacturing execution standards for flap valves and weight-driven valves - HCBBS Forum
- #1751198Some issues with safety valves - HCBBS Forum
- #1751244Regarding fixed welding - HCBBS Forum
- #1751254Insulation tube shell issues - HCBBS Forum
- #1751293How to design a threaded nozzle - HCBBS Forum
- #1751372Technical consultation on professional elbows, flanges, and tees - HCBBS Forum
- #1751380Regarding the steam leakage from the discharge port of the pilot-operated safety valve - HCBBS Forum
- #1751504What are the requirements for purchasing valves and instruments? - HCBBS Forum
- #1751532Where can one order custom-made flexible graphite gaskets? - HCBBS Forum
- #1751578Forged steel valves - HCBBS Forum
- #1751714Calculation of pressure drop in high-pressure argon capillary tubes? - HCBBS Forum
- #1751745How to determine the diameter of long-distance gas pipelines - HCBBS Forum
- #1751751Compatibility between American standard flanges and Chinese standard flanges? - HCBBS Forum
- #1751842What type of fitting is used to connect the branch pipes at the upstream end - HCBBS Forum
- #1751954How should pressure pipelines be handled when passing through deformation joints? - HCBBS Forum
- #1752034Circulating water calculation - HCBBS Forum
- #1752159Here are some recommended manufacturers of 27MPA metal hoses - HCBBS Forum
- #1752270**Departmental quality supervision - HCBBS Forum
- #1752580What type of internal components should be used for Inconel valves? - HCBBS Forum
- #1752594Is it necessary to produce axonometric drawings for the pressure pipeline supplementary drawing project? - HCBBS Forum
- #1752683Pressure testing of gravity flow pipelines - HCBBS Forum
- #1758356I would like to ask some questions about valve sales - HCBBS Forum
- #1758421A671 Gr CC60 – what does CC stand for? - HCBBS Forum
- #1758441Manufacturing license for safety valves of atmospheric pressure vessels? - HCBBS Forum
- #1758487Flange types at both ends of the metal hose - HCBBS Forum
- #1758548Gate Valve \CL150 DN500 A216-WCB, 13Cr sealing pressure - HCBBS Forum
- #1758740Non-plastic pipes cannot be used for flammable, highly hazardous, and extremely hazardous media - HCBBS Forum
- #599190Engineering document naming convention - HCBBS Forum
- #1758777Pneumatic cut-off ball valve - HCBBS Forum
- #599214I have a question about control valves for everyone - HCBBS Forum
- #1758787Do condensate water pipes count as pressure pipes? - HCBBS Forum
- #599235Seeking help regarding a fault with the piston pressure relief valve - HCBBS Forum