Fixed Valve Trays
The fixed valve trays has valves in a bridge like construction extruded from the tray deck. This construction allows for increased stiffness to the tray deck. These valves provide large vapor passages and operate at low pressure drops with high capacities. These trays exhibit excellent fouting resistance characteristics.
The fixed valve trays with V- shaped grids combines the attributes of sieve holes and float valves. These valves provide large vapour passages and operate at low pressure drops with high capacities. The rectangular valves extruded from tray decks are oriented parallel to the liquid flow.
Characteristics of fixed valves
- Large opening size provided for improved fouling resistance
- Easy to clean - less downtime
- Durable construction for long tray life
- Liquid push strong enough to help flush solid material downstream
- Lateral vapour release through
- Easy to clean - less downtime
- No protrusions below the tray deck
- Liquid push strong enough to help flush solid material downstream.
Advantages of Fixed valve trays.
- Less entrainment due to lateral vapour release
- Excellent fouling resistance
- No wear on account of no moving parts
- High efficiency over a wide range through improved vapour- liquid contact