Description

External reservoir providing a dead-ended blanket for fluid to the quench connection of the gland.

Features

  1. Can prevent ice formation on the atmospheric side of the seal.
  2. No need to maintain pressure system as in Plan 53A.

Use

  1. Preferred for clean, non-polymerizing media with vapour pressure higher than buffer fluid pressure.
  2. One method of operation is to fill the quench reservoir with a suitable liquid. While preparing the pump for start-up the block valve below reservoir is opened, allowing the quench fluid to sit in the area between the seal and throttle bushing. Prior to start up, block valve is closed to ensure the pot is only exposed to atmospheric pressure.

Caution

  1. Keep pot vent continuously open, which is necessary to maintain buffer fluid pressure close to atmospheric pressure and vent the vapors to flare.
  2. Should not be used with dirty or polymerizing products.
  3. Never run the system with level in the sealant vessel at low level as marked on the level gauge.
  4. Vent the system properly before start up.
  5. This piping plan is only recommended for vertical applications.