Why are carbon steel bolts used for flanges?
Also, if the choice of SS for flange is dictated by the type of fluid, there is no reason for the bolts to be SS also. Problem with the carbon steel bolts/nuts is that the pipe is a cold service and we get condensation on the bolts/nuts (where insulation have failed) and as a result they get corroded.
What kind of nuts should I use for my bolted flange?
The ASTM standard for nuts related to the above for bolts and studs is: ASTM A194/A194M – Specification for Carbon and Alloy Steel Nuts for Bolts for High Temperature or High Pressure Services, or Both While this standard is indicated for high temperature services, it is also applied for low temperature services.
How are flanges used in stainless steel pipes?
For e.g., a carbon steel flange can be added to the stainless steel pipe system because the flange will not come into contact with the substance in the pipe. The stub ends will be butt-welded to the pipe and the flanges will remain loose.
Can a copper pipe fitting be connected to a galvanized steel pipe?
When connecting a copper pipe fitting to a galvanized steel pipe, you must use a dielectric fitting. This will keep the water from creating an electric current and causing corrosion and leaks. First, you will want to coat the dielectric fitting with pipe tape.
What does it mean to have a flange connection?
Flange connection is to two pipes, fittings or equipment before each fixed at a flange on the flange between the two, together with flange pad, fastened together with bolts to complete the connection. Some of pipe fittings and equipment have been built-flange, also falls within the flange connection. How to select the gasket for Flange Connections?
For e.g., a carbon steel flange can be added to the stainless steel pipe system because the flange will not come into contact with the substance in the pipe. The stub ends will be butt-welded to the pipe and the flanges will remain loose.
What kind of fasteners should I use for my bolted flange?
ASTM A320/A320M – Specification for Alloy-Steel and Stainless Steel Bolting for Low Temperature Service For each fastener specification, there is an associated nut specification. Since both parts interact, it is important to refer to the nut standard as well.
When connecting a copper pipe fitting to a galvanized steel pipe, you must use a dielectric fitting. This will keep the water from creating an electric current and causing corrosion and leaks. First, you will want to coat the dielectric fitting with pipe tape.
