Butterfly valves inside manholes/chambers
Butterfly valves inside manholes/chambers
(OP)
If butterfly valve will be installed inside manhole, what is the best coating for this application to protect the valve from corrosion,do we need to paint this valve with epoxy as I think the humidity inside chamber is very high so can we consider it like submerged application or we can consider it like exposed or buried. what I need to know what is the best recommended coating inside closed manhole ?
1- polyamide epoxy - for submerged application
2- Alkyd enamel with primer - exposed application
3- Tape coating - buried application
I think we have to consider it as exposed, but is there are any additional protective material for installation inside manholes to keep this valve running as long as possible with no defect ?
1- polyamide epoxy - for submerged application
2- Alkyd enamel with primer - exposed application
3- Tape coating - buried application
I think we have to consider it as exposed, but is there are any additional protective material for installation inside manholes to keep this valve running as long as possible with no defect ?





RE: Butterfly valves inside manholes/chambers
RE: Butterfly valves inside manholes/chambers
What do you mean by composite ?
RE: Butterfly valves inside manholes/chambers
RE: Butterfly valves inside manholes/chambers
RE: Butterfly valves inside manholes/chambers
Composite valves are excellent for chemical resistance. They, in general, do not conform to AWWA, and there are solvents that attack the plastic components.
There is a best valve for every application, and the composite valves are vastly superior for some applications. Other applications may be better served by different valves or different materials.
RE: Butterfly valves inside manholes/chambers
RE: Butterfly valves inside manholes/chambers