Flush Bottom Valves are special
purpose valves used in piping and vessels to drain out any product or slurry
left in the pipe or vessel. These valves are most commonly used for dead space
free draining or feeding of vessels and pipelines.
They are also suitable for various mediums including highly viscous materials
but also for vessels where rapid drainage is important. The Control Seal Flush
Bottom Valves are available from ½" up to and including 12” and from 150lbs up
to and including 1500lbs.
Drain Valves are available in Disc Type or Plunger
Disc type
The advantage of disc type valves is a short stroke for open/close operation. Air cylinder operation is usually selected. The rising and lowering discs’ compact, lightweight design is ideal for installation under a tank where there is limited space. The lowering disc is ideal for tank applications with an agitator.
Plunger Type
Ram valves / piston valves guarantee full flow as the valve disc (ram) travels
completely out of the flow path. These valves are ideal for slurry applications
as the inside of the valve is cleaned when the plunger moves to the closed
position.
Applications
The Flush Bottom Valves are not only used in the petrochemical industry but are also widely used in the Pharmaceutical and Fine Chemicals, Polymer, and Mineral Processing industries.
Key characteristics
-All valves have full nominal bore
-Available with 45°, 60°, or 90 degree outlet angle in the body
-Dead space free
-Crust breaking
-Sealing to atmosphere always with adjustable loaded stuffing box
-Valves have exchangeable seats
-A flushing connection is provided as standard
-Available with either Radial or Positive seal