# What is Air manifold or Distribution manifold?

**URL:** <https://forumautomation.com/t/what-is-air-manifold-or-distribution-manifold/6001>\
**Category:** Valves\
**Created:** [February 28, 2019, 3:09pm UTC](https://forumautomation.com/t/what-is-air-manifold-or-distribution-manifold/6001 "2019-02-28T15:09:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sivaranjith](https://forumautomation.com/letter_avatar_proxy/v4/letter/s/ba9def/32.png) [@sivaranjith](https://forumautomation.com/u/sivaranjith)\
**Post date:** [February 28, 2019, 3:09pm UTC](https://forumautomation.com/t/what-is-air-manifold-or-distribution-manifold/6001/1 "2019-02-28T15:09:12Z")

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Air [**manifolds**](https://forumautomation.com/t/what-is-valve-manifold-explain-about-3-way-and-5-way-valve-manifold/2718) or also called as distribution manifolds are single pipeline with several valves outputs designed to distribute air or steam to several outputs, such as steam flow meters, pressure controllers and [**valve positioners**](https://forumautomation.com/t/control-valve-positioner-and-its-working/2822).

Air manifolds are commonly used to distribute air from the compressor to several [**actuators**](https://forumautomation.com/t/types-of-actuators-and-its-applications/5991) on pneumatic instruments.

 ![air%20MANIFOLD-1-ISO](https://cdn.forumautomation.com/original/2X/a/a4cf77f6138d1601088f187419b01a73da24849f.png)

## Construction of air manifold:

The instrument air manifold header arrangement and instrument air supply branches show below:

 ![air%20manifoldd](https://cdn.forumautomation.com/original/2X/4/422b9f4b44d6e63ae94a320431fffff8d5037a7a.jpeg)

The number of outlets of the air distribution collector can vary depending on the number of pneumatic devices or valves in the vicinity. Each outlet is equipped with a ball valve or needle valve type.

Each outlet should have the number of the instrument tag to which the outlet supplied the air. A block valve is attached to the bottom of the instrument air distribution collector for drainage purposes. This drain valve is necessary to bleed the built-up condensed liquid during maintenance.