By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by CML

Air up/down retracts max system pressure

All Topics | Latest Posts

Search for:  in Thread Title in  
alex nicol06/07/2020 15:56:57
avatar
388 forum posts
17 photos

I'm hoping I can get a little guidance.

I have a nearly finished 1/5 scale Phoenix Models PC21 DLE30 powered which is fitted with Phoenix air up/down retracts (supplied with kit). System is installed and working with no leaks. Can anyone advise on what the maximum air pressure in the system should be.

Before I connected the system up I passed air through the one way valve and it was reading 35psi with no load on the exit side, does this mean if I go to 100psi the actual pressure in the tank is only 65psi.

Thanks

Alex

Jon - Laser Engines06/07/2020 16:16:28
5556 forum posts
270 photos

No, it likely needs 35 pounds to open the valve and that is what the pump was reading.

What sort of valve do you have? and what pump? If its a cheap electric thing the gauges are hopeless.

alex nicol06/07/2020 16:58:31
avatar
388 forum posts
17 photos

It's the valve that came with the kit, I get the need for pressure to open the valve. The system is pressured from a 12v double piston mini pump the pressure gauge readings compare favourably with others.

Ideally I'd like to understand the max safe pressure I can take the system up to without damage and ensure the gear down is strong enough to push the nose leg down against the drag

PeterF06/07/2020 17:50:59
avatar
544 forum posts
739 photos

Hard to be definitive, I have some Unitracts in an 80" Mosquito that I run at 100-220psi but that may or may not be acceptable for another manufacturers kit. The filling is done through a standard car tyre type valve so very little pressure drop through the NRV in this.

PeterF06/07/2020 18:57:12
avatar
544 forum posts
739 photos

Typo above, it should have read 100 to 120 psi, too late to edit.

alex nicol06/07/2020 19:12:21
avatar
388 forum posts
17 photos

Thanks Peter

Jon - Laser Engines06/07/2020 21:41:13
5556 forum posts
270 photos

i use 80-100psi myself but i think most systems can handle 120

All Topics | Latest Posts

Please login to post a reply.

Support Our Partners
electricwingman 2017
Slec
CML
Sussex Model Centre
Sarik
Advertise With Us
Latest "For Sale" Ads
Has home isolation prompted you to start trad' building?
Q: The effects of Coronavirus

 Yes - for the first time
 Yes - but Ive bashed balsa before
 No - Ive existing projects on the bench
 No - Im strictly an ARTF person

Latest Reviews
Digital Back Issues

RCM&E Digital Back Issues

Contact us

Contact us

Magazine Locator

Want the latest issue of RCM&E? Use our magazine locator link to find your nearest stockist!

Find RCM&E!