DangerWerx KWA NS2 CQB Valve

[Off_kilter]

Dynamo are you willing to sell the low fps one?

[Dynamo]

absolutely

[Adamlxlx]

Originally Posted by Dynamo

absolutely

I will take one of those as well. PM me when you have them done if you dont mind.

[p.phresh]

+1 for me too.

I'd be interested in increasing the FPS in my MP9 (compared to the low power bolt) and more consistent output.

subscribing to the thread!

[Dynamo]

ok, here's the completed low FPS valve with yellow plastic rear bumper insert.
seems to be working well, and the plastic is holding out fine.

i'll make a couple more of these this afternoon, then i'll start making the high FPS valves. they will have the same plastic bumper, and will have a thin 4 fin flute as well as sit further back to maximize gas flow into the barrel.

[m102404]

Outstanding

[Dynamo]

pre-forms, HURRAY!

i'll make 10 total for now, and see how much interest i get.

[Dangerwerx]

Originally Posted by BennyBoy

They're kinda expensive for $20 each for a metal nipple but what can you do?
Was hoping to drop fps to appropriate level instead of having to buy a new pistol.

Originally Posted by Dynamo

lol wow.. $20 for that.. i have made one my self for an MP7. takes 10min to make. that would take literally 5-10 sec to make on a CNC lathe, $20 is ridiculous.
i made mine out of 6062 T6 bar stock, and could easily make many more for half that price.

To be fair, they sell for a bit cheaper at ASGI/Evike
http://www.airsoftgi.com/product_inf...oducts_id=8342
http://www.evike.com/product_info.php?products_id=34901

I understand that the price might be a little off putting, but I try to price my items fair enough so I can make a bit of a living. You aren't supporting some ACM operation, just me. I think it is fair that I would like to make a little money for the time spent designing and machining before coming to my end result.

Originally Posted by Dynamo

the wide shaft is how the FPS out put is reduced. thats why is suggested to hollow it out. granted there are two main ways of adjusting the FPS. either restrict the flow by increasing the diameter of the shaft, or increase the distance of the valve sealing surface from the loading nozzle tube. the high output valve im making now will have flutes and will also have the valve sit a bit further back. i am also inserting a high density plastic inside the back side of the valves as a strike surface for the cross pin, so it wont ding up the back of the valve.

If you need some design notes, I can pass you some information, (You also need to factor the flute's weight to control FPS) The rubber bumper really isn't needed, as the pin it rests against is steel. No reports or deformed pins yet.

Originally Posted by BennyBoy

If you want one to make a copy of let me know, we airsofters need a price break

:|

[Dynamo]

the cross pin is tempered steel, and i have already replaced a shattered one in an MP7. it was using the RA-Tech NASP valve that is half aluminum and half steel. the back of the valve is covered in strike marks from striking the cross pin. it even deformed the face of the steel plate that threads on to the threaded shaft that adjusts the fps. the valve no longer adjusts due to the damage.

there is a reason why KWA put a plastic buffer in the back of the valve. other GBB/R manufacturers make their valves out of plastic, which is more resistant to impacts and is also much lighter than a metal one.

i find that the weight of the valve only really effects how soon the valve will close after the BB has left the barrel and the pressure drop sucks the valve closed. a heavier valve will take longer to close than a light one, but the FPS is more so a factor of gas flow, than how long the valve is open for. so a heavier valve would in effect waste more gas than a lighter one.

Originally Posted by Dangerwerx

To be fair, they sell for a bit cheaper at ASGI/Evike
http://www.airsoftgi.com/product_inf...oducts_id=8342
http://www.evike.com/product_info.php?products_id=34901

I understand that the price might be a little off putting, but I try to price my items fair enough so I can make a bit of a living. You aren't supporting some ACM operation, just me. I think it is fair that I would like to make a little money for the time spent designing and machining before coming to my end result.




If you need some design notes, I can pass you some information, (You also need to factor the flute's weight to control FPS) The rubber bumper really isn't needed, as the pin it rests against is steel. No reports or deformed pins yet.


:|

[Dangerwerx]

Originally Posted by Dynamo

the cross pin is tempered steel, and i have already replaced a shattered one in an MP7. it was using the RA-Tech NASP valve that is half aluminum and half steel. the back of the valve is covered in strike marks from striking the cross pin. it even deformed the face of the steel plate that threads on to the threaded shaft that adjusts the fps. the valve no longer adjusts due to the damage.

there is a reason why KWA put a plastic buffer in the back of the valve. other GBB/R manufacturers make their valves out of plastic, which is more resistant to impacts and is also much lighter than a metal one.

I am just saying, of 1000+ sold, I have yet to receive an email or message from retailers or users that their pin/valve has failed due to my lack of a bumper. Take a look at the valve in a LP Bolt and you will see something similar.

Originally Posted by Dynamo

i find that the weight of the valve only really effects how soon the valve will close after the BB has left the barrel and the pressure drop sucks the valve closed. a heavier valve will take longer to close than a light one, but the FPS is more so a factor of gas flow, than how long the valve is open for. so a heavier valve would in effect waste more gas than a lighter one.

Yup, which is why my valve is partially drilled out to reduce weight. Not being confrontational with you, just looking to help get your valve off the ground.

[SuperHog]

Dynamo = Made in Canada

[BennyBoy]

DangerWerx...I believe you're the one who makes them? Nice to see you subscribe just to post =D

2 dollar difference isn't really that much, I did see them but everyone tells me to avoid evike like the plague
Another thing, they should say it works for other platforms too, one of the biggest reason I didn't go for the 2 dollar less ones.....

One very last thing, I did buy 3 :P

[Dynamo]

Ok, I have 10 valves ready to go out on Monday for those who have contacted me for a set.

I would have done them quicker, but I was fairly busy all last week.
depending on how fast these go, and if those who purchased them like them, I'll make many more.



here's a list of those who have already contacted me, just need to confirm who wants what.

Gotrice - 1x
P.Phresh - 2x
Firestorm X - 1x
Anthon - 1x

And here are those who just posted in this thread that they wanted one.
Off_Kilter - 1x
Adamlxlx - 1x

Thats 5 reserved, 2 unconfirmed. so I have 5 available.

the valves are $10 +$2 shipping regular mail (Cushion Envelope)

the valves are 6061 T6 aluminum, it's been hollowed out to be as light as possible, and an impact resistant plastic bumper has been inserted into the rear of the valve body to minimize damage to the valve's back side as well as the steel cross pin that holds it in place inside the loading nozzle/cup.

[BennyBoy]

I wish I had posted this before I ordered, they were in the States just south of Vancouver. Now it`s been sitting at LAX for pass week without moving, GDI!! Woulda saved me a boat load too!

[lurkingknight]

I'd be in for some as well if I ever get an mp7... I don't think my m226 needs one it might shoot under 350 already.