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API Plan 14

Description

Product recirculation from pump discharge to seal chamber through a flow control orifice and seal chamber back to suction through another flow control orifice.

Features

1. Ensures product recirculation as well as venting.

2. Reduces seal chamber pressure.

Use

1. Used in vertical pumps.

2. Used in light hydrocarbon services.

Caution

1. Check for pressure margin between discharge to seal chamber pressure and seal chamber to suction pressure.

 

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