Issues regarding the piping of pump accessories
Thread Content
The inlet and outlet nozzle flanges of the pump’s dry gas sealing system are both made of stainless steel. My question is: during piping, must the flanges and bolts that pair with them also be made of stainless steel?
It’s not necessary; as long as the pressure and temperature requirements are met, it’s fine. Carbon steel flanges can also be used, as the flange area is generally where the material boundaries lie! ! !
It’s not necessarily required; as long as the pressure is sufficient, that’s enough
If carbon steel flange bolts are used, corrosion can occur easily due to differences in potential. Does this need to be taken into consideration? ?
The material for studs is usually 35CrMoA/35#, while the flanges can be made of carbon steel. The material choice for studs should be one that offers lower wear resistance
It may not be necessary to do it oneself, but since the manufacturer hasn’t delivered yet, we ask them to do it~~ It’s better to have a pairing than no pairing at all; that’s what we do
It’s not necessary; as long as the pressure and temperature requirements are met, that’s enough
It is recommended to use stainless steel to prevent carbon infiltration
It is feasible as long as the pressure requirements and the process properties of the medium are met; if lap jointing is required, it is best to use the same material
If stainless steel is chosen for the mating flange, does the pipe connected to it also need to be stainless steel? In that case, it would be a bit of a waste~
I would like to ask about wear issues: the design specification specifies 35#, but if the construction party wants to use 35CrMoA as a substitute, is that feasible?