Financial Info is required over the internet"
over 300psi is high pressure!... always treat it with
- Required Testing Cycle:
3 or 5 year? Some newer Fiber Wrapped cylinders now have a 5 year
test cycle.Click Here to check
for 3 or 5 year cyle. OR, drop us a note, we will check the
DOT letters for you. We will need the original date and the "E"
number. Click here to go to "how to read fiber wrapped bottles.
We are happy to figure out the test cycle for you. Send a note
with the "E-........." number and the original test
date to Tank Test Cycle Check.
- High Pressure Air:
Sometimes called Nitro tanks (nitrogen or air). Peak tank pressure
is between 3000 psi and 4500 psi. They can be steel, aluminum
and aluminum/fiber wrapped.
- Fiber wrapped:
These are aluminum bottles, that have a fiberglass or carbon fiber
wrapped around a aluminum bottle and covered with a epoxy resin.
They are much lighter than regular aluminum or steel bottles.
These bottles usually need to be tested every 3 years. The Newer
ones may be tested every 5 years. They all have a 15 year life
span. Drop us a note if you are unsure of a Tank Test Cycle.
- Aluminum bottles:
Plain aluminum bottles need to be tested every 5 years and have
a unlimited life. A magnet will not stick to aluminum. 3AL will
be stamped into the round/top part of the bottle.
- Steel bottles
that have 3HT stamped on them, should be
tested at least every 3 years and have a life span of 24 years.
A magnet will stick to one of these bottles.
- CO2 tanks:
2 inches or less in diameter and
less than 2 feet long, do not need to be tested.
This is a DOT Rule. These CO2 bottles usually have a 1800 psi
limit. Greater than 2 inches in diameter must be tested every
5 years. These bottles are not fiber wrapped. These are considered
- Proper care of your bottle
includes impact prevention, never over fill beyond the certified
pressure, inspect each time you fill and have a airsmith or hydro
station to do a professional visual inspection inside and outside
annually (the scuba guys have been doing this for 40 years). Always
- FYI: Exemption Numbers
That number on your tank that starts with "E-" does
not mean the bottle is exempt from testing, it means
the manufacturer is required to have a current authorization letter
on file with the DOT. These letters describe what requirements
the DOT and the manufacturers have placed on the bottle's use,
the testing requirements and other important information. There
are some stores and paintball web sites that say these "E"
bottles are from testing. NO they are not exempt from testing,
all "E" bottles must be tested (requalified).
5000 Burwell Street
Bremerton, WA 98312