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- 产品描述
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What
Unpressurized buffer gas control system .
Containment seal support typically nitrogen buffer gas
Why
Zero to very low process emissions
Safety backup to primary seal .
Where
Used with dual unpressurized containment seals
High vapor pressure fluids ,light hydrocarbons .
Hazardous /toxicfluids
Clean ,non-polymerizing ,non-oxidizing fluids .
Used in combination with Plan 75 and /orPlan 76 .
Preventative Maintenance
Clean ,reliable ,low pressure gas must be supplied to seal at
all times .
Bottled gas supply not recommended except as part of
emergency backup system .
Primary seal leakage is indicated by pressure in the vent line .
Vent or drain are usually connected to low pressure vapor
recovery /flaresystem
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