Oxygen injection solenoid

divetheworld · 17th February 2008, 21:42

The attachment below is our technical specification paper on the "Deep & Altus Pursuit" solenoid.

www.grpservices.com/solenoid.pdf

narked at 90 · 17th February 2008, 22:32

we decided to release this not only to show what we have been working on over the past years but to give other manufactures an insight to what we feel is the best way forward with regards to solenoid operation in rebreathers,
for us it is not about money when safety is involved but to bring in better safety for us the diver when it matters,
we firmly believe this solenoid is a big step forward, and hope others will move in the right direction to.
we will make this available to other manufactures if they wish.

But we are making this available as an upgrade to 3 unit on the market this far, as well as it being the solenoid in our deep pursuit and altus pursuits
kind regards john routley

**Dave Sutton** · 18th February 2008, 00:08

VERY nice. Well done, and full marks given. Price and delivery for one in 24 volt? I'm rebuilding a Mark-15 for a client and would suggest this as an option for the rebuild.

Best,

Dave

.

silent running · 18th February 2008, 01:23

Quote: (Originally Posted by narked at 90)

we are making this available as an upgrade to 3 unit on the market this far, as well as it being the solenoid in our deep pursuit and altus pursuits

kind regards john routley

Hi John, thanks for the post, the product is very impressive. Nice to see someone designing a purpose built component for CCR rather than using some off the shelf stuff adapted for use in CCR.

Which 3 units is it available for? Looks to have similar dimentions to the Prism, do you have any idea if it will fit? -Andy

mountain diver · 18th February 2008, 03:23

very nice indeed, a solenoid that fails closed. you just elimanated the
boom scenario.

all the best.

jhaaja · 18th February 2008, 06:00

Very nice! Green on its way!

Which units will that fit easily?

JH

divetheworld · 18th February 2008, 09:13

Quote: (Originally Posted by Dave Sutton)

VERY nice. Well done, and full marks given. Price and delivery for one in 24 volt? I'm rebuilding a Mark-15 for a client and would suggest this as an option for the rebuild.

Best,

Dave

.

No probs Dave, we will be in touch shortly. We've bought stocks of 6v, John is going to check on availability of the 24v unit. As this is a brand new product, it might have to be assembled especially for you.

Quote: (Originally Posted by jhaaja)

Very nice! Green on its way!

Which units will that fit easily?

JH

The solenoid has an M5 threaded port, so any rebreather that uses an M5 mounting. I am reluctant to give a specific endorsement on all the rebreathers it will fit right now, simply because we have only tested it on one rebreather (well, two or three if you count variants) plus our own.
I will update this thread as we complete tests.

Quote: (Originally Posted by Private message)

It would be helpful to say why you think your solenoid is a better design.
I ask just because it looks like a great addition, but I don't know anything about the old ones, and I'm not an engineer, so I can't judge what your new one fixes.

A lot of PM's have come in asking what the difference is between this solenoid and others. The most fundemental difference is in how the valve opens. Every solenoid requires a component that moves when an electromagnet energizes. In order for that component to move, it must have a ferrous component. Ferrous components rust. Fact. How you deal with corrosion and what effect it has on your life critical system is what counts.
In a lot of other solenoids that use a moving iron core, corrosion on the core allows it to be stuck in the open position. This is due to the core having to slide up and down a tube which has a limited clearance. When corrosion or debris builds up on that clearance, the valve sticks. Our solenoid has no core that slides and the clearance between our electromagnet and the valve seat is such that if there is a build up of anything at all, it will keep the valve closed. So the main difference is failure mode. In the diagrams below a comparison can be made between a simple solenoid and ours. The moving parts are indicated as the red component on ours and item 'V' on the generic.

Secondly is the manufacturing process that I have laboured on in our technical document. Obviously this is a lager cost factor but one which should be seen as a requirment when dealing with oxygen.

Lastly is materials. Not only is our solenoid made completely of stainless steel except the copper wire and the valve seat, the internal components are 'o' ring sealed to prevent failure.

**UWSojourner** · 18th February 2008, 17:32

Very helpful explanation. Thanks much!

DanFountain · 18th February 2008, 19:16

John,

How does this differ from the clippard O-EV-2-6-M5?

See www.clippard.com/oxygen

-Dan

divetheworld · 18th February 2008, 19:37

Quote: (Originally Posted by DanFountain)

John,

How does this differ from the clippard O-EV-2-6-M5?

See www.clippard.com/oxygen

-Dan

Ours is all stainless steel. The link refers to any valve. The oxygen clean can be applied to any Clippard solenoid. Order code for ours is CS3439

Brent

17th February 2008, 21:42	#1 (permalink)
divetheworld Dive porn pimp Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Classic Kiss Other CCR Join Date: Mar 2005 Location: Leeds, England Posts: 1,524	Oxygen injection solenoid The attachment below is our technical specification paper on the "Deep & Altus Pursuit" solenoid. www.grpservices.com/solenoid.pdf __________________ Self praise is no reccomendation. Dont try to be a great man, just be a man and let history be the judge of you. CHECK OUT OUR INTERWEBS FOR CUSTOM REBREATHER UPGRADES *WWW.NARKEDAT90.CO.UK* *http://www.grpservices.com/pursuit/* Supporting Shearwater Research Products in Europe Last edited by divetheworld : 20th February 2008 at 14:06.
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17th February 2008, 22:32	#2 (permalink)
narked at 90 In my own little world Current Rebreather/s: Inspiration Classic Other CCR Dolphin Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Classic Kiss Other CCR Dolphin Home Build Join Date: Feb 2005 Location: middlands uk Posts: 992	Re: Oxygen injection solenoid we decided to release this not only to show what we have been working on over the past years but to give other manufactures an insight to what we feel is the best way forward with regards to solenoid operation in rebreathers, for us it is not about money when safety is involved but to bring in better safety for us the diver when it matters, we firmly believe this solenoid is a big step forward, and hope others will move in the right direction to. we will make this available to other manufactures if they wish. But we are making this available as an upgrade to 3 unit on the market this far, as well as it being the solenoid in our deep pursuit and altus pursuits kind regards john routley __________________ CHECK OUT OUR INTERWEBS FOR CUSTOM REBREATHER UPGRADES *WWW.NARKEDAT90.CO.UK* *WWW.GRPSERVICES.COM*
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18th February 2008, 00:08	#3 (permalink)
Dave Sutton Living on Animal Farm Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,464	Re: Oxygen injection solenoid VERY nice. Well done, and full marks given. Price and delivery for one in 24 volt? I'm rebuilding a Mark-15 for a client and would suggest this as an option for the rebuild. Best, Dave . __________________ . "All animals are equal, but some animals are more equal than others" Professional Small Boy: Never Successfully Cubicled.
(Online)

18th February 2008, 01:23	#4 (permalink)
silent running Mature mouth breather Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Jun 2005 Location: U.S.A. Brooklyn, New York Posts: 1,748	Re: Oxygen injection solenoid Quote: (Originally Posted by narked at 90) we are making this available as an upgrade to 3 unit on the market this far, as well as it being the solenoid in our deep pursuit and altus pursuits kind regards john routley Hi John, thanks for the post, the product is very impressive. Nice to see someone designing a purpose built component for CCR rather than using some off the shelf stuff adapted for use in CCR. Which 3 units is it available for? Looks to have similar dimentions to the Prism, do you have any idea if it will fit? -Andy
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18th February 2008, 03:23	#5 (permalink)
mountain diver Silent Lucidity Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Mar 2006 Location: edmonton, ab. Posts: 166	Re: Oxygen injection solenoid very nice indeed, a solenoid that fails closed. you just elimanated the boom scenario. all the best.
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18th February 2008, 06:00	#6 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 867	Re: Oxygen injection solenoid Very nice! Green on its way! Which units will that fit easily? JH
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18th February 2008, 17:32	#8 (permalink)
UWSojourner Pacific Northwest Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Feb 2005 Location: Portland Oregon Posts: 556	Re: Oxygen injection solenoid Very helpful explanation. Thanks much!
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18th February 2008, 19:16	#9 (permalink)
DanFountain New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Dec 2005 Location: Lake Superior Posts: 99	Re: Oxygen injection solenoid John, How does this differ from the clippard O-EV-2-6-M5? See www.clippard.com/oxygen -Dan __________________ Try not. Do - or do not. There is no try. -Yoda
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18th February 2008, 19:37	#10 (permalink)
divetheworld Dive porn pimp Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Classic Kiss Other CCR Join Date: Mar 2005 Location: Leeds, England Posts: 1,524	Re: Oxygen injection solenoid Quote: (Originally Posted by DanFountain) John, How does this differ from the clippard O-EV-2-6-M5? See www.clippard.com/oxygen -Dan Ours is all stainless steel. The link refers to any valve. The oxygen clean can be applied to any Clippard solenoid. Order code for ours is CS3439 Brent __________________ Self praise is no reccomendation. Dont try to be a great man, just be a man and let history be the judge of you. CHECK OUT OUR INTERWEBS FOR CUSTOM REBREATHER UPGRADES *WWW.NARKEDAT90.CO.UK* *http://www.grpservices.com/pursuit/* Supporting Shearwater Research Products in Europe Last edited by divetheworld : 19th February 2008 at 13:10.
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