1.0cc
to 1000cc INTERNAL CAPACITY Approved and in service gas cylinder products meeting
MIL-PRF-25369, MIL-C-601G, AS601, MIL-C-16385, MIL-C-52053,
USCG/UL1191, DOT 39, ASTM, FAA/TSO C13, cGMP and USP requirements. Download
PDF Brochure
"Leland's
management is committed to empower all employees
to be able
to produce and deliver products and services which
meet and exceed customer expectations through a process
of continual Quality Management System (QMS) improvement."
Table
1: Quick Reference Guide: SIZING
BY CYLINDER DIAMETER
Table
2: Sealing Cap Guide: TYPE AND
ENERGY NEEDED
*Per requirements of UL1191. A Newton of force (Nf) can
be converted to pounds of force by multiplying by 0.2248.
The UL1191 test method is a very good indicator of the
force needed to puncture a cap and the total energy requirement. You
can obtain the UL document by contacting UL directly:
CustomerService.RTP@us.ul.com
Diagram
1
Explanation 1
These are examples
of some sealing caps, which are available to close
off the endof a gas filled cylinder.
We offer technical support to assist you in the proper
selection of these
options.
Diagram 2
Explanation 2
This cylinder
is fitted with an innovative break off tip (BOT) sealing
cap. Applications requiring low work energy to release
the gas can benefit from our technology. It is not
for everyone though, as special care and handling is
required due to the sensitive nature of this gas release
mechanism.
Mass
Production of Special Needs:PHOTOS
BELOW ARE NOT ACTUAL SIZE. HOWEVER, INDICATION OF SCALE
IS SHOWN WHERE POSSIBLE.
Leland is about gas technologies. The ability to put gases
into unique disposable cylinders safely and effectively is
our goal. Most of our cylinders are mass produced at rates
as high as 40 finished units per minute. It takes planning
and a commitment to the specialized equipment necessary to
make these cylinders. Here are seven examples of our cylinder
range.
1.
This
Nitrogen filled cylinder is charged to 2700 psi and
welded closed for zero leakage. The 1⁄2-20UNF2A
threaded neck and 100 hour rated Leland SuperZinc coating
make it common in many applications.
2.
A
crimp closure is common to lock in the gas when it
has oxidizer properties, such as Oxygen and Nitrous
Oxide. Your application requirements may necessitate
this type of closure. Please contact us so we can help
you decide what type of closure is right for you.
3.
The
indentation in this cap was a military design to prevent
the puncture pin in the inflation assembly from touching
the cap surface prematurely during high g takeoffs
and landings by fighter pilots. We can design specialized
puncture caps to accommodate virtually any situation.
All tools are produced in house.
4.
Ever wonder what a side curtain airbag cylinder
looks like? This cylinder is custom made for a top
auto maker. We have DOT approval for Ultra High Pressure
(UHP) cylinders with filling pressures of over 6,000
psi.
5.
A
98cc internal (water) capacity cylinder is about as
large as you can go before the need to seek a DOT approval.
This distinction is important to applications that
require normal UPS style shipping without costly hazardous
materials fees. The Leland web site has more specific
information about safety and shipping.
6.
We
regularly make disposables with an internal capacity
of 1000cc. When filled with CO2, that translates to
a gas mass of 670g. All our cylinder products over
110cc are DOT approved as NRC containers. We have tooling
for several common diameters and welcome custom requests.
7.
“Small
as a pencil eraser” was our vision in 2001 to
accommodate the needs of the medical industry for drug
delivery devices. These are very strong little cylinders
with <1.5cc of water capacity. We often fill them
with liquid CO2 or N2 to pressures of up to 2750 psi.
Table 3: Quick Reference
Guide:GASES, GRADES AND RELATIONSHIPS
This table is a reference guide to help you
think about the type of gas you may require. We offer virtually
any gas or blend there is; but generally, not toxic gases,
as we place the safety of our employees (and you) as a
high priority. Please contact us for detailed information
about a specific cylinder, as there are many factors that
affect the quantity and pressure of the stored gas in our
cylinders.
Piercing Pins and Unique
Cylinder Attachments
Diagram
3
Puncture Pin Explanation
Diagram
4
The
shape and style of a puncture pin relates to its
intended use. Diagram 3 shows a typical life jacket
style pin where the user will advance the pin into
the puncture cap. Diagram 4 shows what a puncture
pin should look like if the cylinder is advanced
onto the pin. A seal is required in both situations
to prevent gas leakage.
Diagram
5
Cylinder Attachment
Diagram
6
The
most common method to attach the cylinder is by means
of a thread. The advancing cylinder strikes the puncture
pin shown in diagram 6. Another method used in the
life jacket industry is a bayonet fitting attached
to the threaded end. Bayonets allow quick and positive
engagement as shown in diagram 5. The ergonomics
of your product will be important design input criteria
for the cylinder and how the user is expected to
replace it.
Table
4: Quick Reference Guide:1.0cc
to 1000cc INTERNAL CAPACITY
If
your requirements are outside of the range of product
possibilities shown here,
please take a moment to contact
us. Our Tech Team will be happy to assist you.
This
Nitrogen filled cylinder is charged to 2700 psi and
welded closed for zero leakage. The 1⁄2-20UNF2A
threaded neck and 100 hour rated Leland SuperZinc coating
make it common in many applications.
A
crimp closure is common to lock in the gas when it
has oxidizer properties, such as Oxygen and Nitrous
Oxide. Your application requirements may necessitate
this type of closure. Please contact us so we can help
you decide what type of closure is right for you.
The
indentation in this cap was a military design to prevent
the puncture pin in the inflation assembly from touching
the cap surface prematurely during high g takeoffs
and landings by fighter pilots. We can design specialized
puncture caps to accommodate virtually any situation.
All tools are produced in house.
Ever wonder what a side curtain airbag cylinder
looks like? This cylinder is custom made for a top
auto maker. We have DOT approval for Ultra High Pressure
(UHP) cylinders with filling pressures of over 6,000
psi.
A
98cc internal (water) capacity cylinder is about as
large as you can go before the need to seek a DOT approval.
This distinction is important to applications that
require normal UPS style shipping without costly hazardous
materials fees. The Leland web site has more specific
information about safety and shipping. 
We
regularly make disposables with an internal capacity
of 1000cc. When filled with CO2, that translates to
a gas mass of 670g. All our cylinder products over
110cc are DOT approved as NRC containers. We have tooling
for several common diameters and welcome custom requests.
“Small
as a pencil eraser” was our vision in 2001 to
accommodate the needs of the medical industry for drug
delivery devices. These are very strong little cylinders
with <1.5cc of water capacity. We often fill them
with liquid CO2 or N2 to pressures of up to 2750 psi.
