please educate me

[bcworkman1983]

Hey guys, I have a question and I need some help understanding. Today I did some testing with my newly regulated Air Arms S410. I installed the reg, and took it out today to test it and see what changes it made. It was about 70/75* today, sunny with no wind. The pressure gauge on the rifle is in front of the reg, so it should only read the regulator pressure, not the cylinder pressure (200 bar).

Here are my questions:

1. The pressure gauge on the reg side never got above 50 bar. The regulator is set to 135 bar from Lane Regulators, so that doesn't seem right. It should read 135 bar and it doesn't, any idea why? The rifle worked great, as it should, but the gauge was off by a third..?

2. When filling up the cylinder, I am reading the gauge on my fill source (Ninja 90CI / 4500psi tank) and it wont fill past 170 bar. It just stops. the first time it did this, I bled the line, and tried to re fill it and it filled to 200 bar THEN STOPPED. The 2nd time I tried to fill it, it wouldn't fill to 200 bar at all, even though there was well over 300 psi still in the fill source. Any idea why this is?

3. (This is the part I need educating) if Im filling from any given source, shouldn't I be able to fill to any desired pressure? (At lease till the two tanks reach neutral pressure)

This is to ask, from a full tank to my PCP, shouldn't I be able to fill to 250 bar and beyond IF I want? I don't understand why it wouldnt ever fill past 200 bar without the reg, and only 170 bar with the reg.

Any help with these issues would be greatly appreciated

Thanks for reading this.

Brandon

 

[Yo]

Sounds like your 90ci tank is low on air. Do you have a dead head? I suggest you get one. Use it to check your tank's remaining pressure. This way you will also know if your dive shop is cheating you. YO!

 

[Yo]

Did you chrony it go verify it shooting great? 50 Bar would be shooting slow rather than great. YO!

 

[bcworkman1983]

Hey YO, I chronyd every shot. Shooting a 33 shot average of 840fps with an extreme spread of 15fps. which was the rifles sweet spot before the reg install. So I would say its shooting great, exactly how I would expect it to shoot with the reg installed.

Brandon

 

[Eaglebeak]

1. You probably have a dodgey gauge or it is partially obstructed.

2. Your Ninja bottle is probably regulated and won't allow you to fill to it's content's max, pressure when full.

3. Yes 

 

[bcworkman1983]

So what do I need to do to be able to fill to any desired pressure? Buy a scuba tank, or something similar, with no regulator?

 

[L.Leon]

So what do I need to do to be able to fill to any desired pressure? Buy a scuba tank, or something similar, with no regulator?

You can try and adjust the regulator on your ninja bottle to a higher set point. Or get an SCBA and fill from that, but you will need to add a fill station.

 

[Yo]

Gun manometer flick it tap it with your finger nail seems stuck maybe dust or debris inside. Don't need to spend more money if you don't want to. Your 90ci bottle is fine. You can still fill the gun with the lower reg setting glad it was only your guns manometer. YO!

 

[Yo]

I see spending a significant amount of cash here buying another tank and a fill assembly when you can easily adjust the 90ci regulator for a 200 Bar output or use it as you have been doing all along. YO!

 

[Eaglebeak]

You can buy an unregulated valve or possibly modify your existing one. I wouldn't recommend spending money on something that will only give you a few full fills anyway. Yes you should look into getting something bigger. SCBA or SCUBA, and what size, and filling method. only you will know what is best your situation. It pays to do a bit of home work before laying out the readies.

 

[L.Leon]

I see spending a significant amount of cash here buying another tank and a fill assembly when you can easily adjust the 90ci regulator for a 200 Bar output or use it as you have been doing all along. YO!

Says the person who owns over 20K worth of PCPs?

 

[Yo]

There's a lot of folks who owns over 20k and even more worth of PCPs. When I first started as a matter of fact I did own an AA S410 and at that time I would have appreciated any advice to make my dollar stretch farther and I didn't even have the luxury of a Ninja 90ci tank to fill it nor the $$$ to buy a regulator for it I just filled to 2700psi it's sweet spot then fill it after shooting 25-30 shots. I was pumping it! YO!

 

[Guest]

Does the S410 have the 230cc tube? You're likely seeing a loss of volume from the 90ci tank instead of malfunction. That is all.

 

[Yo]

His Ninja 90 ci =1474.836 cc that's like 3 FX Impact or Brocock Bantam Hi Lite bottles combined. YO!

 

[Yo]

Its 211cc or 314cc depending if it's the long or short. After doing a search there's a 280cc option. YO!

 

[Guest]

You have to consider the pressure drop with each fill not only the volume. I'm not so good with the maths but it would be interesting to see how many 200bar, 280cc fills one can get from a 300bar 1475cc tank.

I do know that my 80cf scuba tank will give two, maybe three 200bar fills in my S500 Extra-FAC before failing to fill at 200bar.

 

[Guest]

Look into the Ninja EZ fill Valve. Good deals on EBay. 

 

[bcworkman1983]

Thanks for the help guys, I'm going to monkey around with my manometer and see if its got any trash or obstruction, and I will look into the EZ fill valve or just get a SCBA tank. 

-Brandon