Are Apeks DS4's good for 100m+ ?

mikktaho · 13th September 2007, 16:42

Quote: (Originally Posted by montyg)

DST = 1 x 1/2" UNF MP port, 3 x 3/8" UNF MP ports, and 1 or 2 x 7/16 UNF HP

Two high pressure ports in DST.

**Freef** · 13th September 2007, 18:48

How deep do you want to go? Apeks regs have been at least 180m to my knowledge and they are the best on the market [cue bunfight].

I have numerous Apeks sets from TX40/DST4 to ATX100's and an Egress.

I think that the newer XTX first stages have done away with the 1/2" port. I carry a set of sleeve up/down adaptors in my toolbox because of the odd size of the DS[T] port.

Is everyone aware of the recall on A clamp first stages?

Mdemon · 13th September 2007, 19:35

XTX50 is rated 200m as is the XTX200 IIRC.

Used DSTs and DS4's >100m fine.

colinicky · 13th September 2007, 21:21

Quote: (Originally Posted by Mdemon)

XTX50 is rated 200m as is the XTX200 IIRC.

Used DSTs and DS4's >100m fine.

Yes you are correct .On the Apeks Marine homepage under downloads are the test certificates for 200m under Norsok . But that is a DST with a XTX50 not for a DS4

Mdemon · 14th September 2007, 11:12

Suck 'em and see?

colinicky · 14th September 2007, 11:23

Quote: (Originally Posted by Mdemon)

Suck 'em and see?

ROFLMAO

ajmtucke · 14th September 2007, 11:31

Quote: (Originally Posted by colinicky)

ROFLMAO

oi what you doing down there anyways !!

don't tell me he sent you the cert card !!

where you doing the dive col ??

ash

Rebreatherlab · 14th September 2007, 11:43

Quote: (Originally Posted by colinicky)

Yes you are correct .On the Apeks Marine homepage under downloads are the test certificates for 200m under Norsok . But that is a DST with a XTX50 not for a DS4

All membrane first stages with an antifreeze cap will boost the IP gradually as you go deeper. If the DS4 is set to 9.5 bar IP over ambient then the IP will be approx 10.5 bar over ambient at 50 m, 11.5 bar at 100 m and 12.5 bar at 150 m. Maybe you remember the old adverts going something like "Our reg gets easier to breath from at depth". Not sure if that was Apex or someone else, but basically it is true until you reach the depth where the IP exeed the cracking tension of the 2nd stage spring and it free flows.

There are three cures:
1 Remove the antifreeze cap or cut a hole in it.
2 Fill the chamber with Vodka.
3 Adjust the first stage IP so that it gives 9.5 bar including boost at planned max depth.

As I thought all of the above felt a bit messy, I elected to use membrane regs without environmental seals for the Pelagian DCCCR.

Andy

Woz · 14th September 2007, 11:56

4. Wind in the cracking adjustment knob as you go deeper

Mark Chase · 14th September 2007, 13:26

102 OC on two DST's TX50 main reg TX40 back up and three DS4s.

105 CCR with three DS4s on my bailout gas

Seemd OK to me. No free flows on the DS4 TX40 deco regs but i always set the deco regs to - and switch over to + once in the old gob.

ATB

Mark

13th September 2007, 16:42	#11 (permalink)
mikktaho New Member Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Mar 2005 Location: Southern Finland Posts: 24	Re: Are Apeks DS4's good for 100m+ ? Quote: (Originally Posted by montyg) DST = 1 x 1/2" UNF MP port, 3 x 3/8" UNF MP ports, and 1 or 2 x 7/16 UNF HP Two high pressure ports in DST.
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13th September 2007, 18:48	#12 (permalink)
Freef Custom Title Disallowed! Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Jan 2006 Location: Land of the Freef, UK. Posts: 1,353	Re: Are Apeks DS4's good for 100m+ ? How deep do you want to go? Apeks regs have been at least 180m to my knowledge and they are the best on the market [cue bunfight]. I have numerous Apeks sets from TX40/DST4 to ATX100's and an Egress. I think that the newer XTX first stages have done away with the 1/2" port. I carry a set of sleeve up/down adaptors in my toolbox because of the odd size of the DS[T] port. Is everyone aware of the recall on A clamp first stages? __________________ David. Currently owner of two differently sized ankles.
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13th September 2007, 19:35	#13 (permalink)
Mdemon SiegeEngine II Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Inspiration Classic Home Build Join Date: Feb 2007 Location: SWUK Posts: 1,927	Re: Are Apeks DS4's good for 100m+ ? XTX50 is rated 200m as is the XTX200 IIRC. Used DSTs and DS4's >100m fine. __________________ www.southwestmafia.com "small minds talk about people, Average Minds Talk About Events, GREAT MINDS TALK ABOUT IDEAS!" The WRONG Attitude will get you killed. "Once the agenda-monkeys and perfect-worlders have moved on, perhaps we can do some diving?"
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13th September 2007, 21:21	#14 (permalink)
colinicky Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Mar 2005 Location: uk Posts: 667	Re: Are Apeks DS4's good for 100m+ ? Quote: (Originally Posted by Mdemon) XTX50 is rated 200m as is the XTX200 IIRC. Used DSTs and DS4's >100m fine. Yes you are correct .On the Apeks Marine homepage under downloads are the test certificates for 200m under Norsok . But that is a DST with a XTX50 not for a DS4 __________________ Colin I trust my rebreather completely , I just don't trust the user onwards & downwards
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14th September 2007, 11:12	#15 (permalink)
Mdemon SiegeEngine II Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Inspiration Classic Home Build Join Date: Feb 2007 Location: SWUK Posts: 1,927	Re: Are Apeks DS4's good for 100m+ ? Suck 'em and see? __________________ www.southwestmafia.com "small minds talk about people, Average Minds Talk About Events, GREAT MINDS TALK ABOUT IDEAS!" The WRONG Attitude will get you killed. "Once the agenda-monkeys and perfect-worlders have moved on, perhaps we can do some diving?"
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14th September 2007, 11:23	#16 (permalink)
colinicky Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Mar 2005 Location: uk Posts: 667	Re: Are Apeks DS4's good for 100m+ ? Quote: (Originally Posted by Mdemon) Suck 'em and see? ROFLMAO __________________ Colin I trust my rebreather completely , I just don't trust the user onwards & downwards
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14th September 2007, 11:31	#17 (permalink)
ajmtucke New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Nov 2005 Location: Hereford, UK Posts: 83	Re: Are Apeks DS4's good for 100m+ ? Quote: (Originally Posted by colinicky) ROFLMAO oi what you doing down there anyways !! don't tell me he sent you the cert card !! where you doing the dive col ?? ash
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14th September 2007, 11:43	#18 (permalink)
Rebreatherlab RebreatherWorld Sponsor Current Rebreather/s: Pelagian Other Rebreather/s: Not Bought Yet Classic Kiss Pelagian Join Date: Sep 2005 Location: Thailand Posts: 202	Re: Are Apeks DS4's good for 100m+ ? Quote: (Originally Posted by colinicky) Yes you are correct .On the Apeks Marine homepage under downloads are the test certificates for 200m under Norsok . But that is a DST with a XTX50 not for a DS4 All membrane first stages with an antifreeze cap will boost the IP gradually as you go deeper. If the DS4 is set to 9.5 bar IP over ambient then the IP will be approx 10.5 bar over ambient at 50 m, 11.5 bar at 100 m and 12.5 bar at 150 m. Maybe you remember the old adverts going something like "Our reg gets easier to breath from at depth". Not sure if that was Apex or someone else, but basically it is true until you reach the depth where the IP exeed the cracking tension of the 2nd stage spring and it free flows. There are three cures: 1 Remove the antifreeze cap or cut a hole in it. 2 Fill the chamber with Vodka. 3 Adjust the first stage IP so that it gives 9.5 bar including boost at planned max depth. As I thought all of the above felt a bit messy, I elected to use membrane regs without environmental seals for the Pelagian DCCCR. Andy __________________ www.rebreatherlab.com
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14th September 2007, 11:56	#19 (permalink)
Woz Custom Title Allowed! Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Jun 2005 Location: Nottingham Posts: 185	Re: Are Apeks DS4's good for 100m+ ? 4. Wind in the cracking adjustment knob as you go deeper __________________ Still punting shiny diving tatt to gullible divers www.kitfondle.co.uk
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14th September 2007, 13:26	#20 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Re: Are Apeks DS4's good for 100m+ ? 102 OC on two DST's TX50 main reg TX40 back up and three DS4s. 105 CCR with three DS4s on my bailout gas Seemd OK to me. No free flows on the DS4 TX40 deco regs but i always set the deco regs to - and switch over to + once in the old gob. ATB Mark __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
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