Idex Liquid Controls A8180 Series Installation-Parts page 29

Piping Configurations & Connections
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.
If the meter system has an air check or differential valve,
the air or vapor eliminator and the valve must be piped
together. If no air check or differential valve exists, you
must either plug one of the vent ports (Figure 2) or pipe
both vent ports to the storage tank (Figure 3).
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Mechanical Air & Vapor Eliminators
29