Description
An external fluid stream is brought to atmospheric side of the seal faces using quench and drain connections.
Features
- The quench fluid acts as barrier in between atmosphere and process fluid.
- The quench fluid reduces oxidation and coking of product and also cools seal faces.
- Flushes away undesirable material build up under seal faces.
- Can be used with water, steam or an inert gas.
Use
- In caustic or crystallising fluids.
- In oxidizing fluids or hot hydrocarbons.
- Can be used to purge steam in hot applications especially for stationary bellows to avoid coking.
Caution
- Ensure availability of continuous supply of low-pressure quench fluid limited to maximum 1 bar.
- Use of throttle bushing on atmosphere side is mandatory.
- Use proper bearing isolators to ensure that the quench fluid does not enter the bearings.
