70+ FPE KRAL PB with ART SS valve

[oldpro]

I might have to throw in a 357 barrel and see what it will do or a 30 cal.

[SilentMatt]

 If someone sends me a Evanix valve of the most common variety I will make up a SS valve,

Travis, I can send you the valve from my Rainstorm II since I have it apart and it's been sitting idle in the safe.

Awesome Steven please do

Yeah, because I need more stuff to make...

[oneshot61]

So is the rainstorms valve the same as the noblesse valve?? If so it may fit both brands?

[chibasan]

 If someone sends me a Evanix valve of the most common variety I will make up a SS valve,

Travis, I can send you the valve from my Rainstorm II since I have it apart and it's been sitting idle in the safe.

Awesome Steven please do

Yeah, because I need more stuff to make...

It's all boxed up and I'll try to get it out tomorrow during my lunch break.  Travis I'll be sending it with the valve block and air tube attached to it because I am having a really tough time trying to remove the block from the tube, and I don't want to break/mangle/scratch/strip/destroy anything.

[oldpro]

 If someone sends me a Evanix valve of the most common variety I will make up a SS valve,

Travis, I can send you the valve from my Rainstorm II since I have it apart and it's been sitting idle in the safe.

Awesome Steven please do

Yeah, because I need more stuff to make...

It's all boxed up and I'll try to get it out tomorrow during my lunch break.  Travis I'll be sending it with the valve block and air tube attached to it because I am having a really tough time trying to remove the block from the tube, and I don't want to break/mangle/scratch/strip/destroy anything.

thats actually even better that way I can test fit.

[3BI5]

Our local Jkhan importer has .35 caliber noblesse valves in stock, I can send you one if it helps. He doesn't have any drop blocks in stock but can order one from Korea.

Can you fit the valve tech inside the valve body part itself or will it need a new drop block too? I think some evanix guns have exactly same shape valve as the Kral and some have a separate valve and drop block like in the Jkhan pictures I posted. Other than that the valve main body dimension should be the same. Throat and exhaust port sizes are diffrent for different calibers. 

One important question is how big valve throat you can build in to this slim style of valve body? My .35 caliber stock valve has about .34 throat and I'd would like to see something bigger than that, maybe .38- or .40 even.

[oneshot61]

Our local Jkhan importer has .35 caliber noblesse valves in stock, I can send you one if it helps. He doesn't have any drop blocks in stock but can order one from Korea.

Can you fit the valve tech inside the valve body part itself or will it need a new drop block too? I think some evanix guns have exactly same shape valve as the Kral and some have a separate valve and drop block like in the Jkhan pictures I posted. Other than that the valve main body dimension should be the same. Throat and exhaust port sizes are diffrent for different calibers. 

One important question is how big valve throat you can build in to this slim style of valve body? My .35 caliber stock valve has about .34 throat and I'd would like to see something bigger than that, maybe .38- or .40 even.

Do you know if the bodies of the .22,.25,.357 are the same with just different porting??

[3BI5]

I've only seen the .35 version myself, so I don't know. I asked about the valve differences from the importer but all he could say he thinks they are the same but can't guarantee it. One interesting thing he told was that he can get all the parts for the Jkhan guns so spare parts are available. And actually the price for the valve he quoted was so cheap I might just place an order for .22 and .25 valves just to see if they are the same.

[oldpro]

 Maybe start a thread about the valve differences and with evanix im sure members know this is the WORLDS largest and most active air rifle forum. Then once we know I can plot a plan to put into action. Im glad to help anyway i can.

[oldpro]

 Finished the R&D for Kral SS valve and will start posting strings now

[oldpro]

Created: 09/29/17 01:26 PM
Description: Kral with JSB .25
Notes 1: SS valve
Notes 2:
Distance to Chrono(FT): 1.00
Ballistic Coefficient: 1.000
Bullet Weight(gr): 25.40
Temp: 69 °F
BP: 30.01 inHg
Altitude: 0.00
#          FPS   FT-LBS       PF
40    848      40.56    21.54   
39    856      41.33    21.74   
38    859      41.62    21.82   
37    862      41.91    21.89   
36    868      42.50    22.05   
35    874      43.09    22.20   
34    875      43.19    22.23   
33    879      43.58    22.33   
32    884      44.08    22.45   
31    885      44.18    22.48   
30    892      44.88    22.66   
29    889      44.58    22.58   
28    889      44.58    22.58   
27    892      44.88    22.66   
26    882      43.88    22.40   
25    891      44.78    22.63   
24    879      43.58    22.33   
23    882      43.88    22.40   
22    884      44.08    22.45   
21    885      44.18    22.48   
20    880      43.68    22.35   
19    878      43.48    22.30   
18    879      43.58    22.33   
17    877      43.39    22.28   
16    870      42.70    22.10   
15    874      43.09    22.20   
14    871      42.79    22.12   
13    870      42.70    22.10   
12    858      41.53    21.79   
11    867      42.40    22.02   
10    861      41.82    21.87   
9     859      41.62    21.82   
8     855      41.24    21.72   
7     860      41.72    21.84   
6     852      40.95    21.64   
5     849      40.66    21.56   
4     845      40.28    21.46   
3     858      41.53    21.79   
2     857      41.43    21.77   
1     849      40.66    21.56   
Average: 870.6 FPS
SD: 13.8 FPS
Min: 845 FPS
Max: 892 FPS
Spread: 47 FPS
Shot/sec: 0.1
True MV: 871 FPS
Group Size (in): 0.00

Created: 09/29/17 01:39 PM
Description: Kral .187 ports SS valve
Notes 1:
Notes 2:
Distance to Chrono(FT): 1.00
Ballistic Coefficient: 1.000
Bullet Weight(gr): 34.00
Temp: 68 °F
BP: 30.04 inHg
Altitude: 0.00
#          FPS   FT-LBS       PF
22    821      50.90    27.91   
21    827      51.64    28.12   
20    831      52.14    28.25   
19    836      52.77    28.42   
18    839      53.15    28.53   
17    845      53.91    28.73   
16    854      55.07    29.04   
15    840      53.28    28.56   
14    843      53.66    28.66   
13    844      53.79    28.70   
12    839      53.15    28.53   
11    845      53.91    28.73   
10    839      53.15    28.53   
9     836      52.77    28.42   
8     841      53.41    28.59   
7     836      52.77    28.42   
6     837      52.90    28.46   
5     840      53.28    28.56   
4     832      52.27    28.29   
3     822      51.02    27.95   
2     829      51.89    28.19   
1     816      50.28    27.74   
Average: 836.0 FPS
SD: 8.9 FPS
Min: 816 FPS
Max: 854 FPS
Spread: 38 FPS
Shot/sec: 0.1
True MV: 836 FPS
Group Size (in): 0.00

[oldpro]

 We included a place to put a gauge(gauge not included) for those who plan on regulating their Kral

[oldpro]

This is a true balanced valve so it only requires a stock spring and typically set At lightest setting or even cut down so now that stiff trigger is super light and crisp. Combine that with our hardened offset sear and the pull weight is fractions of the stock gun.

[SilentMatt]

The sear drops it down to around just over 2 lbs. I don't have any stock sears to test but our early prototypes measured around 4 lbs.

[oldpro]

 Heres the valve really making serious power in a 25 cal Kral Bullpup 93 FPE!!!!

[skorec]

Rely GOOD  work Travis,

I  will need SS valve for my .22   NxWerks QR  BullpUp in which I have installed HUMA air pressure regulator already.  I hope that it is not problem to send it to EU.

[oldpro]

Rely GOOD  work Travis,

I  will need SS valve for my .22   NxWerks QR  BullpUp in which I have installed HUMA air pressure regulator already.  I hope that it is not problem to send it to EU.

Not a problem at all.

[Old Corps]

The sear drops it down to around just over 2 lbs. I don't have any stock sears to test but our early prototypes measured around 4 lbs.

Are the sears available to purchase?
Thanks!

Ed

[SilentMatt]

Not yet Ed, made them so tough that I can't resize the pivot hole. I have a few that are done, but getting 2-5 sears in working order per carbide reamer is going to get pricey.

[leadbetter]

Nice work! I've been itching to try out a kral