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API Piping Plans

Process Side

Filter Plan Types

API Plan 01

Internal recirculation from pump discharge to the seal chamber.

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API Plan 01

API Plan 02

Dead-ended seal chamber with no recirculation of fluid and optional cooling/heating jacket.

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API Plan 02

API Plan 03

Open-ended or tapered seal chamber.

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API Plan 03

API Plan 11

Recirculation from pump discharge through a flow control orifice to the seal chamber.

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API Plan 11

API Plan 12

Recirculation from pump discharge through a strainer and flow control orifice to the seal chamber.

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API Plan 12

API Plan 13

Recirculation from the seal chamber through a flow control orifice to pump suction.

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API Plan 13

API Plan 14

Recirculation from pump discharge through a flow control orifice to the seal chamber and from the seal chamber through a flow control orifice to pump suction.

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API Plan 14

API Plan 21

Recirculation from pump discharge through a flow control orifice and cooler to the seal chamber.

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API Plan 21

API Plan 22

Recirculation from pump discharge through a strainer, flow control orifice, and cooler to the seal chamber.

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API Plan 22