Seal Flushing
Introduction

Why Seal Flushing Is required?

It is normal that a seal is exposed and expected to
operate in hostile environments like corrosive, dirty,
fluids with abrasive content etc.,.

To combat with such attacks, a new friendly
environment is created around the seal, thereby
isolating it from unwanted environment.

Secondly, heat generated due to friction between the
sealing faces shall be removed from the source
continuously.

Why Seal Flushing Is required ? (contd)
In short, flushing is provided in a seal for

To control dirt.

To heat or Cool the seal area ( wherever
applicable).

To create a friendly atmosphere for the
area where seal is operating.

In some conditions, to keep away the
product itself from the SEAL entirely!

The Secret to achieve satisfactory seal
performance lies in creating a proper
environment for the seal to operate.

THE CREATING SUCH AN
ENVIRONMENT- WHOLLY OR
PARTIALLY IS POSSIBLE BY
PROVIDING FLUSHING
FLUSHING

Flushing can be defined as the introduction
of a liquid into the stuffing box at a higher
pressure than stuffing box pressure to
eliminate the friction in between mating
ring and cool the part’s .
FLUSHING

The most common methods of flushing are:
• BYBASS FLUSING.
•
EXTERNAL FLUSHING.
BYPASS FLUSHING
BYPASS FLUSHING -II
EXTERNAL FLUSHING
FLUSHING- OUTSIDE SEAL