ds4 max mp

**jmurba** · 11th September 2007, 14:48

Hi all,
what maximum MPI could obtain from a ds4 without boosting it too mutch?
regards
jean mi

Simon A · 12th September 2007, 00:47

Quote: (Originally Posted by jmurba)

Hi all,
what maximum MPI could obtain from a ds4 without boosting it too mutch?
regards
jean mi

the max IP you can be sure of getting out of a standard DS4 is normally approx 12.5bar, then the spring goes solid. If you wind the adjuster in further than this it becomes a non regulator and you get tank pressure.

HTH
Simon A

DepthCharge · 12th September 2007, 19:59

Quote: (Originally Posted by Simon A)

the max IP you can be sure of getting out of a standard DS4 is normally approx 12.5bar, then the spring goes solid. If you wind the adjuster in further than this it becomes a non regulator and you get tank pressure.

HTH
Simon A

You can get s "stiffer" spring and increase the IP. I have the spring specs somewhere. But it might be quicker to contact APEX, that's where I got the info from. Found that they were very helpful. Also told me how to get rid of the over compensation, which is 0.1ATA/ATA.

**jmurba** · 12th September 2007, 20:06

Quote: (Originally Posted by Simon A)

the max IP you can be sure of getting out of a standard DS4 is normally approx 12.5bar, then the spring goes solid. If you wind the adjuster in further than this it becomes a non regulator and you get tank pressure.

HTH
Simon A

ok thanks
I think I will use my old scr dolphin reg
regards
jean i

seppu · 12th September 2007, 20:20

hai
13,5 bar fix pressure in my ds4.
gruss sepp

Stephane · 12th September 2007, 23:13

Salut Jean-Mich,

Please contact Paul Raymaekers, he has some springs to increase the IP of the DS4.

**jmurba** · 13th September 2007, 20:27

Quote: (Originally Posted by Stephane)

Salut Jean-Mich,

Please contact Paul Raymaekers, he has some springs to increase the IP of the DS4.

Salut Stephan,

ok i'll ask him, what IP do you dive with ?

regards

ps viens tu à cavalaire pour le festival ?

Stephane · 13th September 2007, 22:49

Mine is set to 12bar, I have a 0.0035 inch orifice.

No, I won't go to Cavalaire, it's too far from Nantes and I won't have time to go. Unfortunately.

11th September 2007, 14:48	#1 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 920	ds4 max mp Hi all, what maximum MPI could obtain from a ds4 without boosting it too mutch? regards jean mi __________________ when will I be able to think about something else then spending hours underwater, when will I be normal ? http://web.mac.com/jmurba/Site_2/home.html http://web.mac.com/jmurba/Site_3/home.html
(Offline)

12th September 2007, 00:47	#2 (permalink)
Simon A Escapee from DIY Rebreather's Current Rebreather/s: Inspiration Classic Other Rebreather/s: Not Bought Yet Join Date: Feb 2005 Location: Reading, UK Posts: 345	Re: ds4 max mp Quote: (Originally Posted by jmurba) Hi all, what maximum MPI could obtain from a ds4 without boosting it too mutch? regards jean mi the max IP you can be sure of getting out of a standard DS4 is normally approx 12.5bar, then the spring goes solid. If you wind the adjuster in further than this it becomes a non regulator and you get tank pressure. HTH Simon A
(Offline)

12th September 2007, 19:59	#3 (permalink)
DepthCharge New Member Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Home Build Join Date: Mar 2005 Location: upstate NY Posts: 234	Re: ds4 max mp Quote: (Originally Posted by Simon A) the max IP you can be sure of getting out of a standard DS4 is normally approx 12.5bar, then the spring goes solid. If you wind the adjuster in further than this it becomes a non regulator and you get tank pressure. HTH Simon A You can get s "stiffer" spring and increase the IP. I have the spring specs somewhere. But it might be quicker to contact APEX, that's where I got the info from. Found that they were very helpful. Also told me how to get rid of the over compensation, which is 0.1ATA/ATA. __________________ Later, John It's better to beg forgiveness than ask permission
(Offline)

12th September 2007, 20:06	#4 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 920	Re: ds4 max mp Quote: (Originally Posted by Simon A) the max IP you can be sure of getting out of a standard DS4 is normally approx 12.5bar, then the spring goes solid. If you wind the adjuster in further than this it becomes a non regulator and you get tank pressure. HTH Simon A ok thanks I think I will use my old scr dolphin reg regards jean i __________________ when will I be able to think about something else then spending hours underwater, when will I be normal ? http://web.mac.com/jmurba/Site_2/home.html http://web.mac.com/jmurba/Site_3/home.html
(Offline)

12th September 2007, 20:20	#5 (permalink)
seppu i ko nix dafüa Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2006 Location: bayern Posts: 204	Re: ds4 max mp hai 13,5 bar fix pressure in my ds4. gruss sepp
(Offline)

12th September 2007, 23:13	#6 (permalink)
Stephane Stéphane Acounis Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 788	Re: ds4 max mp Salut Jean-Mich, Please contact Paul Raymaekers, he has some springs to increase the IP of the DS4. __________________ Stéphane
(Offline)

13th September 2007, 20:27	#7 (permalink)
jmurba wet bear Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: cannes france Posts: 920	Re: ds4 max mp Quote: (Originally Posted by Stephane) Salut Jean-Mich, Please contact Paul Raymaekers, he has some springs to increase the IP of the DS4. Salut Stephan, ok i'll ask him, what IP do you dive with ? regards ps viens tu à cavalaire pour le festival ? __________________ when will I be able to think about something else then spending hours underwater, when will I be normal ? http://web.mac.com/jmurba/Site_2/home.html http://web.mac.com/jmurba/Site_3/home.html
(Offline)

13th September 2007, 22:49	#8 (permalink)
Stephane Stéphane Acounis Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 788	Re: ds4 max mp Mine is set to 12bar, I have a 0.0035 inch orifice. No, I won't go to Cavalaire, it's too far from Nantes and I won't have time to go. Unfortunately. __________________ Stéphane
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode