User avatar
Fibonacci
Vintage Diver
Posts: 98
Joined: Wed Oct 19, 2016 5:08 pm
First Name: Graeme
Location: Melbourne, Australia

Double 7L Faber manifold set up for DH?

Tue Nov 08, 2016 5:25 pm

While I wait for my new Argonaut Kraken to arrive I've been pondering the best modern double tank set up...

I like the idea of small twin tanks like the Faber 7L and these come up from time to time second hand with the usual double DIN K valve with isolator manifold. Centre of balance closer to your back than a large single tank and should be able to be positioned with the DH reg between your shoulder blades.
And of course they have the classic Sea Hunt look 8)

Obviously these won't suit a DH regulator (Kraken or classic RAM etc) so just wondering what my options are apart from trying to find old Sherwood or USD one-piece manifolds and putting a kit through them. These of course would be yoke only vs the convertibe yoke/DIN modern valve designs and centre-to-centre spacing would probably be too wide for standard brackets to suit the small diameter Faber 7L tanks.

Thermo PVD seems to be the only modern version available (in Tacti-cool PVD Black too!) but they are 215mm centre-to-centre.
http://www.diverightinscuba.com/thermo- ... ifold.html

After a lot of web searching it seems possible that two Rebreather DIN valves could be linked but I cannot find a suitable single output crosspiece.
https://www.divegearexpress.com/dgx-pre ... -handwheel

I'm stumped!
Any thoughts gratefully received :)
'A man can never have too much red wine, too many books or too much ammunition' Rudyard Kipling

kworkman
Master Diver
Posts: 336
Joined: Thu Aug 08, 2013 4:17 pm
First Name: Keith
Location: Columbus, OH

Re: Double 7L Faber manifold set up for DH?

Tue Nov 08, 2016 5:41 pm

Ive got AL63s doubled up with a USD solid bar manifold. Of course, I only dive yoke so its not a problem. Making a set of doubles with DIN might not be worth it, but Im sure someone has done it cost effectively.

User avatar
Goodlifedivers
Master Diver
Posts: 155
Joined: Fri Jan 16, 2015 2:45 pm
First Name: Danny
Location: Oyster Bay NY

Re: Double 7L Faber manifold set up for DH?

Tue Nov 08, 2016 6:59 pm

Are you looking for din specifically? If not the us divers solid manifold is pretty nice and you can get it cheap


Sent from my iPhone using Tapatalk

User avatar
Goodlifedivers
Master Diver
Posts: 155
Joined: Fri Jan 16, 2015 2:45 pm
First Name: Danny
Location: Oyster Bay NY

Re: Double 7L Faber manifold set up for DH?

Tue Nov 08, 2016 7:01 pm

Image

These are lp46 which are faber 7l tanks and standard blue steel bands with a us divers manifold

User avatar
Fibonacci
Vintage Diver
Posts: 98
Joined: Wed Oct 19, 2016 5:08 pm
First Name: Graeme
Location: Melbourne, Australia

Re: Double 7L Faber manifold set up for DH?

Tue Nov 08, 2016 7:57 pm

Aha!!

Thanks, that looks exactly like what I'm trying to assemble... stacks of room around the DH can too!
Do they handle OK being that far apart?
Which model Blue Steel bands did you use?

I've also since found a company called Undersea UK who are specialist commercial diving suppliers, their downloadable catalogue lists a multitude of valves and manifolds that could be suitable (including 0450 Centre Outlet with Isolation, and 4085 Twin Manifold with J Reserve... M25x2 threads not 3/4 inch NPSM though)

http://www.undersea.uk.com/cylindermans.html

I'm not really committed to DIN but having the usual Yoke/DIN spin out converter would make it more flexible for other non-DH regs...

Looks like I need to scour US eBay for a USD solid manifold :D
'A man can never have too much red wine, too many books or too much ammunition' Rudyard Kipling

Redshirt77
New Member
Posts: 8
Joined: Thu Oct 06, 2016 10:56 pm
First Name: Joseph
Location: Phoenixville PA

Re: Double 7L Faber manifold set up for DH?

Tue Nov 08, 2016 8:49 pm

I spoke with a person from that company once before I decided to just go with the old USD solid manifold. If you ask they can make you any of their valves/manifolds in 3/4 NPSM for a smallish up charge since it's not stock.

User avatar
rhwestfall
Master Diver
Posts: 480
Joined: Thu Jan 16, 2014 2:34 pm
First Name: Robert
Location: "La Grande Ile"

Re: Double 7L Faber manifold set up for DH?

Wed Nov 09, 2016 1:46 pm

This has some promise with the 300 BAR DIN on my Phoenix...

http://www.wmd.com.tw/products/item/283
Bob

No Longer Awaiting my Kraken.....

User avatar
Fibonacci
Vintage Diver
Posts: 98
Joined: Wed Oct 19, 2016 5:08 pm
First Name: Graeme
Location: Melbourne, Australia

Double 7L Faber manifold set up for DH?

Thu Nov 10, 2016 5:53 am

Thanks for the link, there's some great stuff in there... I wonder if the double DIN crossbar would link two ordinary DIN K valves?
Edit: No because the knobs would of course be facing the wrong way!!!
Not enough coffee before posting...
'A man can never have too much red wine, too many books or too much ammunition' Rudyard Kipling

rx7diver
Skin Diver
Posts: 47
Joined: Fri Aug 28, 2015 11:22 am
First Name: Ronald
Location: Columbia MO

Re: Double 7L Faber manifold set up for DH?

Thu Nov 10, 2016 11:56 am

Goodlifedivers and workman,

You probably use a rubber mallet to tighten your USD manifold on one of the tanks, correct? But how do you tighten the second tank? TIA.

Safe Diving,

rx7diver

User avatar
rhwestfall
Master Diver
Posts: 480
Joined: Thu Jan 16, 2014 2:34 pm
First Name: Robert
Location: "La Grande Ile"

Re: Double 7L Faber manifold set up for DH?

Thu Nov 10, 2016 1:47 pm

for my USD Solid Bar, a strap/chain wrench has been more than enough....
Bob

No Longer Awaiting my Kraken.....

User avatar
ScubaLawyer
Master Diver
Posts: 1349
Joined: Thu Apr 08, 2010 11:25 am
First Name: Mark
Location: Laguna Beach, CA

Re: Double 7L Faber manifold set up for DH?

Thu Nov 10, 2016 1:58 pm

On my USD solid bar manifold I just hand tightened the second tank, held onto it, then whacked the other end of the manifold with a rubber mallet a few times. Of course that was on a small set of HP 40s so my brute force damn the torpedoes full speed ahead approach may not work on larger tank sizes. You will know pretty quickly if it is leaking because it is not tight enough. Good luck. Mark
"The diver who collects specimens of underwater life has fun and becomes a keen underwater observer. .. seek slow-moving or attached organisms such as corals, starfish, or shelled creatures." (Golden Guide to Scuba Diving, 1968) :D

User avatar
Fibonacci
Vintage Diver
Posts: 98
Joined: Wed Oct 19, 2016 5:08 pm
First Name: Graeme
Location: Melbourne, Australia

Re: Double 7L Faber manifold set up for DH?

Thu Nov 10, 2016 3:35 pm

Redshirt77
I sent Undersea UK an email but sadly it seems they have changed policy and now only assemble from their standard catalogued items:
"I am sorry I have looked through all our stock and we do not have any NPSM valves left at all.
Regret we have been unable to help."

This vintage Sherwood double yoke manifold looks good for a DH reg in the centre and backup 1st stage + octo outboard:

Image
'A man can never have too much red wine, too many books or too much ammunition' Rudyard Kipling

Redshirt77
New Member
Posts: 8
Joined: Thu Oct 06, 2016 10:56 pm
First Name: Joseph
Location: Phoenixville PA

Re: Double 7L Faber manifold set up for DH?

Thu Nov 10, 2016 6:35 pm

That's a shame. The price they quoted me was way, way less than the crazy $700 price tag on the single outlet XS Thermo manifold.

Also, someone correct me if I'm wrong but the center-to-center distance on the sherwood manifold is a little shorter than the USD manifold, correct?

User avatar
rhwestfall
Master Diver
Posts: 480
Joined: Thu Jan 16, 2014 2:34 pm
First Name: Robert
Location: "La Grande Ile"

Re: Double 7L Faber manifold set up for DH?

Thu Nov 10, 2016 7:19 pm

the above Sherwood manifold requires "vintage" bands to work. The center-to-center spacing is smaller than modern. Also, I have had issues with using that manifold with my Kraken where I couldn't get a small first stage (ScubaPro MK-2 IIRC) connected without significant interference from the horn on the DH on the center post. I really had to roll my Kraken. I stashed it away in favor of a solid bar, but need to revisit it....
Bob

No Longer Awaiting my Kraken.....

User avatar
ScubaLawyer
Master Diver
Posts: 1349
Joined: Thu Apr 08, 2010 11:25 am
First Name: Mark
Location: Laguna Beach, CA

Re: Double 7L Faber manifold set up for DH?

Thu Nov 10, 2016 7:55 pm

Here's a link to an old post of mine showing a USD single bar manifold I overhauled. Works great!

Mark.

search.php?st=0&sk=t&sd=d&sr=posts&keyw ... 9&start=15
"The diver who collects specimens of underwater life has fun and becomes a keen underwater observer. .. seek slow-moving or attached organisms such as corals, starfish, or shelled creatures." (Golden Guide to Scuba Diving, 1968) :D

Return to “Modern Era Double Hose Diving”

Who is online

Users browsing this forum: No registered users and 5 guests