New Gas Transfer Hoses from TDL

JS1scuba

The TDL Gas Transfer hose features a 48" high pressure hose with two 300 bar male DIN connectors with rotating bleed valves on each end plus a high accuracy pressure gauge with magnified polycarbonate lens. The pressure gauge is dual scale with both PSI and BAR.

We have used these transfer hoses for all of our expeditions for the past three years and they operate without issue. It's the perfect tool to add to any tech divers kit. Use it to equalize cylinders or to transfill from "doubles banks" to smaller rebreather cyliners.

The rotating bleed valve is much more secure than spring loaded push buttons or nylon-based bleed screws.

We finally brought these into our product line and will make them available to you at a special introductory price.

Regular Price = $249.95

Introductory Special = $175.00

ORDER HERE


At Tech Diving Limited we listen to what you want and keep going out there to get it for you.

Thanks for your continued support.

Regards,

Attached Images

GA-TransFill-DIN.jpg (12.3 KB, 494 views)

__________________
Joel Silverstein, VP COO
Tech Diving Limited a Division of Scuba Training and Technology Inc.

http://www.nautilusdiveplanner.com
http://www.nobubblediving.com

UKSteve

A thought... if I was in the market for one I would want a needle valve on one end to meter the flow rather than relying on a tank valve at one end or the other... much safer for working with high O2 gases I imagine.

Steve

Monkey

This is exactly what is preventing me from getting this......

viscya

Joel,

I agree with Steve on this. Any possibility of adding a needle valve?

__________________
"There is nothing majestic or dignified about being left to silently rot and collapse under heaps of old fishing net forgotten and unappreciated in dark and unvisited waters." DrMike

JS1scuba

We normally will not make modifications to and existing product that we source. I can look into it for another production run but it wont be soon.

That said. The transfilling process is so short and simple a specific needle valve is really not necessary. Unless the one doing the transfilling is such a boob that they don't understand large volume to small volume filling these transfill hoses are virtually fool-proof.

What I will normally do in the transfill process is this.

1. Know Supply pressure
2. Know Target Cylinder existing pressure
3. Attach transfill hose with gauge at target cylinder side.
4. Open target cylinder slow and then ALL the way open. (verify pressure)
5. Open supply cylinder slowly and watch target gauge.
6. When target reaches goal turn off supply, let settle then add supply as needed to reach final target if possible.

When we are done we put a label on the supply cylinders of what the remaining pressure is.

It's pretty simple process.

Cheers

JDS

__________________
Joel Silverstein, VP COO
Tech Diving Limited a Division of Scuba Training and Technology Inc.

http://www.nautilusdiveplanner.com
http://www.nobubblediving.com

UKSteve

...exept for the fundemental flaw that you are using a valve designed for on-off use as a flow restrictor. With age the ability to do this decays...

For those in the UK, Sub-Aqua Products supplies all the parts to make up a similar whip with or without a needle valve.

Steve

JS1scuba

Steve, you are 100% correct you will be are using a scuba valve for use it was never designed for. By design here in the states a scuba valve should never see oxygen. It does not meet CGA specs for it. However it is done within the scuba industry. The Gas Transfer hose is not intended to replace a full up mixing system. Though, those with good technique could do so.

This tool is what we consider a "field use" tool. Simple, easy, economical.

cheers

JDS

__________________
Joel Silverstein, VP COO
Tech Diving Limited a Division of Scuba Training and Technology Inc.

http://www.nautilusdiveplanner.com
http://www.nobubblediving.com

schford

IMHO if you are going to Transfer O2 - you need a needle valve to control the flow - your just playing with fire (and an explosion or two) otherwise!

__________________
Bailout and Kit Management account for Murphy's Law

The only bad question is one you did not ask and later wish you had.

Use of Rebreather World is subject to the Rebreather World Terms & Conditions of Use

iratnl

My initial plan was to get a cheaper setup without a needle valve; but having tried to operate the valve on my rented X47 O2 cylinder, I soon realised a needle valve would be a good idea, as I found it impossible to open the valve slowly enough on the O2 cylinder; it was either on of off ! Reading the Oxy Hackers Companion made up my mind for me.

Janos

I'm confused here

Cylinder valves aren't ball-valves; otherwise a quarter turn would be enough to turn them on and off which is clearly not the case.

I have two of the AP transfill whips (one for J's, one for Din to DIN) and both are rated by AP for transfilling O2. They look very similar to Joel's so I can't see why it wouldn't be suitable.

Janos

__________________
You can lead a horse to water but you can't climb a ladder with a large bell in both hands - Vic Reeves
www.hellfins.com/shed