curve-down

Description

Product recirculation from pump discharge through a Y strainer and a flow control orifice to seal chamber.

Features

1. Becomes a self-venting plan for horizontal pumps.

2. Can handle dirty liquids to some extent.

Use

1. In general used in slightly dirty and non-polymerizing fluids.

Caution

1. Always ensure that orifice is placed after the Y strainer.

2. This plan is normally discouraged due to unreliability of Y strainer.

3. Calculation of recirculation is required.

 
  • 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.

    Find Out More
  • 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

    Find Out More

Want an expert piping plan explanation?

Our API expert Richard Smith walks through some of the 4th Edition API Plans, providing expert analysis and explanation of each plan.

API video series thumbnail

Click to Watch

Did you know that you could see a return on investment whilst helping to save the environment?

Careful selection of configuration & product types can save your organisation and nature's valuable resources.

Take a Journey to 'Net Zero'