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| VirusX |
 Posted: 03/08/2010 11:47 AM Post subject: Male Endcap instead of a female one? |
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Joined: 01 Oct 2009
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Hey,
In the Combustion showcase, everyone uses female endcaps on their chamber, but here in Germany are only 2" female endcaps available. My chamber gets at least 3" big, so I have to use some more fittings and each one costs 20€. 
Could I use a 3" male endcap for my combustion, too? It's pressure rated up to 10 bar (145psi), but male endcaps are not as safe as female caps, right? |
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| eriko1337 |
| Posted: 03/08/2010 12:00 PM Post subject: |
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Joined: 01 Feb 2010
Posts: 30
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| i think it will be okay if you epoxy the end cap there, combustions dont get as high pressure as a pneumatic inside the chamber, but im not a combustion pro xD. myself i would try it out |
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| VirusX |
| Posted: 03/08/2010 12:03 PM Post subject: |
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Joined: 01 Oct 2009
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No, the male endcap should still be removable  |
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| eriko1337 |
| Posted: 03/08/2010 12:04 PM Post subject: |
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Private First Class
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oh yeah sorry for that didnt think of it mate  |
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| jrrdw |
| Posted: 03/08/2010 13:12 PM Post subject: |
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Donating Moderator
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| Sounds to me like your refering to a clean out cap... |
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| McCoytheGreater |
| Posted: 03/08/2010 13:14 PM Post subject: |
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Sergeant Major
Joined: 15 Dec 2009
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| You should be fine with the male endcap. Just make sure all your fittings are cemented well enough and you'll be OK. |
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| DR |
| Posted: 03/08/2010 23:47 PM Post subject: Re: Male Endcap instead of a female one? |
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2nd Lieutenant
Joined: 08 Oct 2004
Posts: 200
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| VirusX wrote: | Hey,
In the Combustion showcase, everyone uses female endcaps on their chamber, but here in Germany are only 2" female endcaps available. My chamber gets at least 3" big, so I have to use some more fittings and each one costs 20€.
Could I use a 3" male endcap for my combustion, too? It's pressure rated up to 10 bar (145psi), but male endcaps are not as safe as female caps, right? |
When you stated male "end caps", I'm assuming that you also mean "male adapter".
The male "end cap" is (by far) much stronger, than the female. (The female is commonly referred to as a "Cleanout".
The male adapter also requires a female-threaded cap, which is often-times, the most expensive of all.
Good Luck, with finding what you need. |
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| VirusX |
| Posted: 03/09/2010 6:46 AM Post subject: |
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| DR |
| Posted: 03/09/2010 10:46 AM Post subject: |
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| VirusX |
| Posted: 03/09/2010 15:30 PM Post subject: |
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Joined: 01 Oct 2009
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Pff I selected all parts - and only the pvc pipes and fittings cost more than 100€. Metering system, ignition and all the little things not calculated. That's a lot of money.
(I thought with max. 100€ for everything, not just for the pipes) |
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| DR |
| Posted: 03/09/2010 17:48 PM Post subject: Alterative: |
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2nd Lieutenant
Joined: 08 Oct 2004
Posts: 200
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Buy 5 feet (60") of 1-1/2" pipe, along with a male reducer and cap.
25" Chamber portion + 35" Barrel portion = 60" = 0.71:1 C:B ratio
Add two screws, (180 degress apart) in the chamber portion, 8" from the forward end of the male reducer.
Attach a BBQ ignitor.
Bingo! - Bare-bones potato cannon. |
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| mikespahn |
| Posted: 04/18/2010 10:41 AM Post subject: |
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| as far as i know, cleanout caps are not pressure rated. a male end adapter and female cap (threads on the outside of the chamber and inside of end cap) is much stronger. |
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