# Why FlowDivider and Valve are not exported in MTK Standard Library?

**URL:** https://discourse.julialang.org/t/why-flowdivider-and-valve-are-not-exported-in-mtk-standard-library/118571
**Category:** Modelling & Simulations
**Tags:** question, modelingtoolkit
**Created:** [August 24, 2024, 5:33pm UTC](https://discourse.julialang.org/t/why-flowdivider-and-valve-are-not-exported-in-mtk-standard-library/118571 "2024-08-24T17:33:42Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![romantimo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/romantimo/32/46841_2.png) [@romantimo](https://discourse.julialang.org/u/romantimo)
#### Post date: [August 24, 2024, 5:33pm UTC](https://discourse.julialang.org/t/why-flowdivider-and-valve-are-not-exported-in-mtk-standard-library/118571/1 "2024-08-24T17:33:42Z")

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I see many useful components (FlowDivider, Valve, Actuator, SpoolValve…) in  
src/Hydraulic/IsothermalCompressible/components.jl

Any reason why they are not exported? @ChrisRackauckas  
Thanks a lot for making MTK with standard library!

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### Author: ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [August 24, 2024, 6:28pm UTC](https://discourse.julialang.org/t/why-flowdivider-and-valve-are-not-exported-in-mtk-standard-library/118571/2 "2024-08-24T18:28:57Z")

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Nope, that seems like oversight.

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### Author: ![romantimo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/romantimo/32/46841_2.png) [@romantimo](https://discourse.julialang.org/u/romantimo)
#### Post date: [August 24, 2024, 6:36pm UTC](https://discourse.julialang.org/t/why-flowdivider-and-valve-are-not-exported-in-mtk-standard-library/118571/3 "2024-08-24T18:36:49Z")

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Wonderful. Can you please export them 🙂  
And could you please update docs which are mostly there.

Lots have been done! Many thanks for this.

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### Author: ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [August 24, 2024, 8:14pm UTC](https://discourse.julialang.org/t/why-flowdivider-and-valve-are-not-exported-in-mtk-standard-library/118571/4 "2024-08-24T20:14:01Z")

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I may forget if it’s just here. Open a PR if you want to speed it up

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### Author: ![romantimo](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/romantimo/32/46841_2.png) [@romantimo](https://discourse.julialang.org/u/romantimo)
#### Post date: [August 24, 2024, 8:14pm UTC](https://discourse.julialang.org/t/why-flowdivider-and-valve-are-not-exported-in-mtk-standard-library/118571/5 "2024-08-24T20:14:51Z")

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sure. will do