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Hello, can anyone recommend a good stockist for CS 1/4" to 2". Site is in state WA. Quantity is a few hundred meters different sizes. Thanks

Hello, we have flexible hoses in SS for high temperature exhaust gases (mainly nitrogen) up to 1200°F. Does anyone has experiences with one of the following sealants X-Pando, Deacon 8875-Thin,Flexitallic Graoil GTS and Loctite NS 5550? Is any of these sealants long lasting and can hot/cold...

Hello, we have flexible hoses in SS for high temperature exhaust gases (mainly nitrogen) up to 1200°F. Does anyone has experiences with one of the following sealants X-Pando and attached products such as Deacon 8875-Thin, Flexitallic Graoil GTS and Loctite NS 5550? Is any of these sealants...

Dear All, what is the common practice to socket weld valves with internal gaskets e.g noeprene, N-Butan. The heat impact can damage the gaskets. The supplier does not provide a clear instruction other than "use heat sink or other method to avoid damage". There are many ways to do it but what...

Dear All, our contractor looks for a common way how to weld a 3/4" pipe (304) into a 3/4 "sockolet (304). The gap between sockolet and inserted pipe is to small (~0.1mm) to purge the oxygen completely with forming gas. There will be a risk of crevice corrosion. The pipe (3") uses many sockolets...

Dear All, can someone provide me with a technical explanation why the flange seal face is not fully utilized by the gasket. I know the dimensions for the shown flange 3" RF 150 and the gasket 3" are both correct acc to the ASME code. What is the reason not matching the inner diameter of the...

Dear All, we will be supplying 16 piping skids from German supplier to US. The piping in the skid is quite congested and labelling acc to ASME A13.1 is difficult as the label for 3" pipes should be 2" x 12". This does not fit since there are almost no straight pipes allowing such long label to...

Dear Members, I am looking for a some recommendation about the design of a low pressure ducting system from a high temperature kiln line. The operation data are as follows: Max. operation pressure: 50 mbar Operation temperatures: 300-850 Deg C depending on kiln zones. Pipe sizes: 2"- 16" Pipe...

Dear All, Does anyone know a reliable supplier for welded or seamless alloy pipes? We trying to source sizes from 1/2" to 16". Project will be in US so local supplier is preferred. Thanks in advance

Does anyone has experience to weld alloy fittings to 316L piping. It is a temporary solution to achive mech completion and start-up as alloy piping has a long delivery time. We also will have problems to get DN400 fittings in 316L here in Korea. The alloy fittings are in our stock. We will...

Hello Everyone, We are looking for some suggestions for reliable suppliers (mill/stockist) of alloy pipe. We are trying to source DN400, DN200,DN150, DN80, DN65.. Welded tube is fine. Our previous supplier in China is unable to supply right now. Anyone can help out? Required length for larger...

Dear All, Does anyone know relaible suppliers from China for welded pipes and pipe fittings in China? We are setting you a new factory in Korea and so far had bad experiences with our Chinese suppliers as their delivery time has continuesly changed from 20 days ex works to 4 months. For the...

Dear All, does anyone has experience with requirements for piping installation in Korea? We have carbon steel, stainless steel and inconel piping. Mostly used for gas (acetylene, Silan, N2) and water, steam (11barg). Gas lines are all below 6 bar. We are planning to follow DIN standards but...

Hi Boiler experts, Does anyone knows whether a flue gas heated steam generator for Korea requires 1 or 2 PSV? Operation is 14t/h @ 11 barg Thank you

Dear All, we are facing the problem that we can't remove the bundle of our horizontal shell&tube heat exchanger. Weight of bundle is 9t. Design floating head (drawing attached). Problem: hx has severe fouling and is leaking. Leaks are expected to be caused by uneven thermal expansion due to...

Dear All, We have a 16 MW vertical API heater operated with 4 upwards firing Zeeco gas burners (natural draft). Our plant is in Indonesia near the seaside and we are facing corrosion problems due to the saline environment. The stack has a diameter of 1.7 m and rain water enters the stack in case...

Dear All, we are using Furfural as solvent in an extraction plant. We have been facing problems with degradation of furfural, which caused coking in our system. Furfural is heated up to 220 Deg C in a hot oil (275 Deg C) heat exchanger. Does anyone has experiences with degradation of furfural...

Dear All, We have a by-product in our TDAE plant, which needs to be cooled down from 180 Deg C (7.4 cP) to 115 Deg C (107 cP) by means of water. The flow rate is 11,000 kg/h. Our EPC contractor provided a welded plate heat exchanger with 27 m3 heating surface. This plate hx was basically...

Dear All, I am still looking for a correct answer, which I couldn't find in google, nor from the heat exchanger supplier. I found a lot about "hot bolting" but nothing about the torque required for bolts in hot environment like the flange connection of a floating head. We have a high...

Anyone has quick solution: Problem: We have a large heat exchanger with floating head. The diameter of the tubesheet is around 900 mm with 641 tubes (25.4 x 2 mm). The whole bundle is SS316L (5000kg). The bundle had to be heated in a furance to remove the internal turbulators as there was a...