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CS HDPG pipe to check valve npt

CS HDPG pipe to check valve npt

CS HDPG pipe to check valve npt

(OP)
Hi experts ,

In general connecting or touching dissimilar metal is not allowed due to galvanic erosion issues, what about the Carbon steel HDPG pipe connected to the SS check valve NPT through threading . and the service is NITROGEN .also we are not using teflon tape .

RE: CS HDPG pipe to check valve npt

If this is truly dry service then there cannot be any corrosion.
Also consider the external conditions, you may want to paint the SS check.

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P.E. Metallurgy, Plymouth Tube

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