MINIVALVE® tray decks
The MINIVALVE® family of smaller-size valves provide reduced entrainment and better efficiency than conventional valve and sieve trays.
 
The improvement in capacity can exceed 13% in spray regime services with low-to-moderate weir loadings. MINIVALVE® valves exhibit a more uniform froth action on the tray deck compared to full-size valves. They are offered in both fixed (VG-0) and moveable (MV-1) styles.
 
MINIVALVE valves are directional with the rear leg being a little wider than the downstream front leg. This gives a slight pushing action to the liquid as vapor passes through the valves.
 
The liquid push assists in maintaining a more uniform flow pattern on cross-flow trays with less retrograde action. It also helps offset vapor cross-flow channeling effects to a small degree.
 
MV-1 moving valve

MV-1 MINIVALVE® moving valve
 
  • Higher capacity than full-size
    valve trays: smaller tower or
    more throughput
  • High efficiency:
    fewer trays or less reflux required
  • Formerly restricted to SUPERFRAC®
    tray decks
  • Wide operating range

 

VG-0 fixed valve
 
VG-0 MINIVALVE® fixed valve

  • Higher capacity than full-size
    valve trays: smaller tower or
    more throughput
  • High efficiency:
    fewer trays or less reflux required
  • Fixed opening:
    valve cannot stick shut
  • Formerly used on SUPERFRAC®
    tray decks only
  • FRI tested
  • Cost effective