Idex Liquid Controls A8180 Series Installation-Parts page 28

Field Piping
In this manual, the term "storage tank," refers to any type of receptacle meant to hold air or
vapor expelled from the meter system by an air eliminator. Because mechanical air and
vapor eliminators remove both air and vapor, depending on the application, the terms "air"
and "vapor" are interchangeable throughout this manual.
Most Liquid Controls mechanical air and vapor eliminators are shipped from the factory as part
of a complete meter system. These air eliminators will arrive bolted to the top of a strainer on
the inlet side of the meter.
Before the meter system can be put in operation, the vent ports of the air or vapor eliminator
must be piped to a storage tank and/or a valve.
Piping to Storage Tanks
Piping configurations for Liquid Controls mechanical air
and vapor eliminators are determined by two factors, (i)
the presence or absence of a valve in the meter system
and the presence or absence of bypass ports and (ii) a
limited bleed valve plate in the mechanical air eliminator
assembly.
Piping to Air Check (or Differential) Valve
For meter systems installed into LPG applications,
differential valves are often piped to the mechanical vapor
eliminator in the Liquid Controls factory before shipment,
but for other meter systems, the air eliminator will have to
be piped in the field.
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Storage Tank
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Mechanical Air & Vapor Eliminators
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