The infamous Reg Failure Possible?

[Muzikman]

Actually you're supposed to hold the whip incase of something like that.

DO NOT HOLD THE FILL HOSE!!!!!! I repeat... DO NOT HOLD THE FILL HOSE!!!!

As a matter of fact, stay as far away from the hose and fitting as you can get. If the hose is long, make sure you have it fastened to the table, wall, what ever.

[Muzikman]

As for the reg seat I have a 9 year old Air America reg and I am able to use the same reg seat that goes into a AGD valve I dont know if yours if different then mine but it mite work

RPM, there are differences between AGD and AA reg seats. an AGD reg seat will work some times, but it is a much softer material and will wear out fast. Some time within a day.

[abunkerer]

DO NOT HOLD THE FILL HOSE!!!!!! I repeat... DO NOT HOLD THE FILL HOSE!!!!

As a matter of fact, stay as far away from the hose and fitting as you can get. If the hose is long, make sure you have it fastened to the table, wall, what ever.

agreed, that thing should be tied down

[xXHavokXx]

The reg seat on my old Apoc blew once while I was playing. I heard this high pitched wail then looked at the output side and saw it at 1500, i slammed that thing off and looked at the side of my timmy to see if i had spiked it, luckily it only got to 100 psi, thanks to God, Bob Long and luck the torpedo and LPR had held it down. After that I started using macroline as a secondary measure, id rather have macro blow than a solenoid

[ZapTheMad]

Hmm, your Raptor low pressure side should have blown it's burst disk at about 1600-1800 PSI. Perhaps you should replace that as well since it is not functioning properly.

[SlartyBartFast]

This document suggests a maximum fill rate of 500 psi per minute through a metering valve for SCBA tanks.

Seems to me paintball tanks should be filled in a similar if not identical manner.

[Butterfingers]

Hmm, your Raptor low pressure side should have blown it's burst disk at about 1600-1800 PSI. Perhaps you should replace that as well since it is not functioning properly.

Yeah I should... I put a 3k disk in there when that blew 2 years ago. I know its unsafe... But considering no other tank has a low pressure side burst disc and all my hardware is capable of handling 3000 psi I didnt think too much of it.

[hitech]

... But considering no other tank has a low pressure side burst disc...

Gotta love the flatline.

[ZapTheMad]

A 3k disk won't blow until around 4.5k. The replacement should be a 1200 PSI (A CO2 disk) and will blow around 1600-1800 PSI.

All of the adjustable tanks I have seen have a disk on the low pressure side.

ACI and Crossfire presets have disks on the low side as well.

[Butterfingers]

Wow thats a saftey hazard. What if the reg does not fail and the tank is overpressurized? The LP disc will not burst and we will have a fiber wrapped bomb.

[ZapTheMad]

tanks are rated by "working pressure", not "burst pressure". The safety disk will blow well before the "burst pressure". A disk in a 4500 tank won't blow until around 7k.

[Blazestorm]

Every single field around here has us hold the whips incase it pops off, which has happened.

So instead of the whip flinging around and hitting someone, it is held while the fill-station is bled and the hose is re-attached or removed completely.

I understand your safety precautions, but I think you guys are taking it a bit too far, 99% of people around here don't treat their gear like ****, and if a reg is acting up someone will a.) fix it or b.) toss it. We have tons of airsmiths on all the teams around here, Everytime you go to a tournament or the field there will be atleast 5-6 certified airsmiths who can tech nitro tanks.

The only accident I can think of relating to air tanks around here has been some kid was messing around with 12 grams, the seal broke and shot at him, hit him in the fore-head. Otherwise we've had macroline blows, burst disk blows, and o-rings break, but that's it. The only thing I don't like is people who flash-fill, and when I went to a local tourney they were taking about 45 sec to a minute to fill 4500 tanks and the same for 3000, they usually go slower.

[Butterfingers]

tanks are rated by "working pressure", not "burst pressure". The safety disk will blow well before the "burst pressure". A disk in a 4500 tank won't blow until around 7k.

I understand that. But in the case the tank gets pressurized through the fill nipple over 7k and the reg has not failed the LP burst disc will do squat.

I know its highly unlikely but thats what the disc is there for. Having a LP bust disc only protects the gun it does nothing to prevent the tank before the reg from catostrophic failure.

If the preset tank is set to 800 psi the reg pin will seal the opening to the LP side so that given the reg does not undergo catostrophic failure the LP burst disc only sees around 800 psi irregardless of tank pressure.

Thats what I was getting at.

EDIT: Ahh I see what you are saying... the tanks that you have seen have BOTH burst discs not just an LP disc.

I have owned a few screw in's mainly nitroduck and a centerflag 200 adjustable reg neither have LP side discs.

[ZapTheMad]

EDIT: Ahh I see what you are saying... the tanks that you have seen have BOTH burst discs not just an LP disc.

lol, yeah. :)

[GotMag?]

seems like a good thread to answer my question, on my 48ci 3k crossy preset steel tank i blew the 1800 burst disk(it has two, one was a 5k) so, is another 1.8 supposed to go in its place? BTW my tank was at like 3200 when it blew, the scuba shop overfilled it a tiny bit