Valve types
Koch-Glitsch has developed a variety of valve styles to enhance the vapor-liquid contacting that takes place on a tray deck.
 
A: full-size, one-piece valve 
 
A - full-size, one-piece valve

· Higher capacity than
  standard sieve trays
· High efficiency 
· Wide operating range 
· Low pressure drop
· Cost effective


A valve: full-size, one-piece valve

VG-10: full-size fixed valve
 
VG-10 valve: full-size fixed valve

· Large opening for  
  improved fouling
  resistance
· Fixed opening cannot
  stick shut like moving
  valves 
· Easy to clean
· Rugged, durable
  construction
· Materials up to .25"
  (6.35 mm) for maximum
  corrosion resistance

VG-10: full-size fixed valve
PROVALVE® fixed valve
 
PROVALVE® fixed valve offers the wide operating range of conventional valve trays, but no moving parts

· Higher capacity than
  full-size valve trays
· Maximum opening size
  for maximum fouling
  resistance and free
  passage 
· Fixed opening: valve
  cannot stick shut
· High weepage resistance
  for a wide operating
  range
· Easy to clean; less
  downtime
· Rugged, durable
  construction for long
  tray life
· FRI tested
· Patented

PROVALVE® fixed valve
T: full-size, caged valve
 
T valve: caged, standard, round, full-size valve

· Higher capacity than
  standard sieve trays
· High efficiency
· Wide operating range
· Low pressure drop
· Cost effective
· More weepage
  resistance
· Increased fouling
  resistance
· Rugged construction
· FRI tested


T valve: caged, standard, round, full-size valve 

VG-0: MINIVALVE® 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
· Cost effective
· FRI tested

VG-0: MINIVALVE® fixed valve

T0: full-size, low pressure drop valve
T0 valve: caged, full-size, low pressure drop valve

· Higher capacity than 
  standard sieve trays 
· High efficiency
· Wide operating range
· Contoured hole for
  lowest pressure drop
· Cost effective
· More weepage
  resistance
· Increased fouling
  resistance
· Rugged construction
· FRI tested  


T0: caged, low pressure drop valve

MV-1: MINIVALVE® 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
· Wide oerating range


MV-1: MINIVALVE® moving valve