Drain from containment seal cavity to liquid collector and
vapor recovery .
Leakage collection for zero to very low process emissions
Safety indicator for primary seal .
May be used alone or with Plan 72 on containment seals
Fluids that condense at ambient temperature .
High vapor pressure fluids ,light hydrocarbons .
Hazardous /toxicfluids .
Clean ,non-polymerizing ,non-oxidizing fluids
Collection reservoir must be located below seal drain and
Continuously vent collection reservoir to low pressure vapor
Drain collection reservoir to liquid recovery system as
needed .Primary seal leakage is indicated by increased vent
pressure .Monitor regularly for liquid level ,valve settings ,and
low vent pressure