Sump for Twin Seal Valve

[ldistr]

Hello,
I consider to install twin seal valves at a marine pier manifold (8") to avoid product contamination issue for multipurpose petroleum products unloading line.

As the pier is not connected to a slop tank we need to contain the bleed drains drips in routine and in case of leakage into a closed sump.

Do anybody has an idea of the volume/leakage flowrate/routine bleeding flowrate we should consider for 10 8" valves ?
Does anyone experience leakage aside valves open/close phases ?

 

[dcasto]

Why would they leak? If you really want zero emissions, get a bellows seal on the stem.

 

[cliff6361]

You should seek the answers you are looking for from the manufacturer of the valves in question. You must make certain who you talk with the designers not just a manufacturer who copied the design of others. The original engineers can tell you exspected leakage rate from the bleed connections.