API Plan 66A

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Description:

Throttle bushing in seal gland restricts seal leakage in event of seal failure. Pressure increase is detected by a pressure transmitter.

Features:

  1. Normal leakage passes, inner restriction bush to drain.
  2. Excess leakage is restricted by inner bush from leaving seal gland causing pressure increase, which is sensed by the pressure transmitter.
  3. Leakage is directed to liquid recovery system or sump.

Uses:

  1. Intended for use with arrangement 1 seals where it is required to limit leakage in case of seal failure.

Caution:

  1. Drain connection must be at the bottom position.
 
  • Read Our Water Savings Industry Guide

    This paper explains the problems associated with packing, how double mechanical seals with seal support systems solve these problems.

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  • API Piping Plan Booklet

    API Plans are standardized flushing piping arrangements that are widely used in industry. This downloadable pdf booklet describes both configurational parameters and application criteria

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