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Inst Tools > Blog > Animation > Dome Valve Working Principle

Dome Valve Working Principle

Last updated: March 21, 2019 4:38 pm
Editorial Staff
Animation Control Valves
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Dome ValveĀ is a pressure tight compressed air operated valve, capable of returning over one million maintenance-free cycles, even in abrasive, hazardous or toxic applications.

Contents
Dome ValveDome Valve Working Animation

It is unique in its ability to open and close with a tight pressure seal in environment where abrasive materials are passing.

Dome Valve

Dome Valve Working Principle

Image Courtesy :Ā tinsley company

The Dome component closes beneath the seat(seal) when the seal is relaxed (not inflated), allowing a controlled gap between the seat (seal) and the closing member (Dome).

Material is allowed to pass through or enter the controlled gap if, due to its characteristics, it is pulled into the gap by the action of the Dome component moving to its closed position.

In the closed position, high pressure air or other gas enters the space between the back of the seal face and the insert ring to cause the seal face to expand onto and around the periphery of the Dome component.

Dome Valve Seals

Material particles are entrapped by the seal against the dome surface, irrespective of particle size or shape.

Before opening the valve, the seat is relaxed, and the controlled gap is reestablished before the Dome component moves to its open position.

The seal is a loose component clamped into place by a spigot piece and external fasteners holding the top plate assembly to the body. The seal is easily removed for inspection.

Dome Valve Working Animation

Dome Valve Working Animation

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