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Products – Palm-sized compact gas source

NTG mini gas cylinders, sometimes called mini gas cartridges, are used for various applications in diverse fields. They are easy to handle because they are as small as they can be, and even fit into the palm of your hand. These mini containers, which are not restricted by the high-pressure gas safety laws in Japan*, can be filled with carbon dioxide, oxygen, nitrogen, helium, argon, LPG, and other compressed and liquefied gases**.

  • *The cylinders or containers themselves are not restricted by the Japanese high-pressure safety law but the gases inside the cylinders are subject to the high-pressure law of Japan.
  • **NTG does not manufacture N2O cylinders as Japanese law prohibits manufacturing and distributing N2O gas in disposable cylinders.

Mini gas cylinders - Specifications

      Gas Mass
    (gr)
    Gas Volume
    at 35℃
    (L)
    Capacity
    (ml)
    Dimensions (mm)
    Body Diameter Body Length Thread/
    Neck Diameter
    CO2 7 4.0 10 Φ18.6 64.5 3/8-24UNF
    8 4.6 10 Φ18.6 64 Φ8.6
    8 4.6 14 Φ18.6 82.5 3/8-24UNF
    10 5.7 14 Φ18.6 82.5 3/8-24UNF
    11.5 6.6 15 Φ18.6 82.1 Φ7.3
    14 8.0 20 Φ22.0 88.4 Φ8.85
    12 6.9 20 Φ21.8 88.4 3/8-24UNF
    14 8.0 20 Φ21.8 88.4 3/8-24UNF
    15.5 8.9 20 Φ21.8 88.4 3/8-24UNF
    All the values are nominal. Please feel free to contact us if you are interested in other capacity, volume, or gases.
      Gas Mass
    (gr)
    Gas Volume
    at 35℃
    (L)
    Capacity
    (ml)
    Dimensions (mm)
    Body Diameter Body Length Thread/
    Neck Diameter
    CO2 16 9.2 22 Φ21.8 90.5 Φ9.0
    16 9.2 23 Φ21.8 99 3/8-24UNF
    17 9.8 28 Φ25.4 94 1/2-20UNF
    18 10.3 28 Φ25.4 94 1/2-20UNF
    20 11.5 28 Φ25.4 94 1/2-20UNF
    18 10.3 40 Φ28.6 120.6 3/4-16UNF
    20 11.5 30 Φ25.4 103 1/2-20UNF
    24.5 14.1 30 Φ25.4 105 3/8-24UNF
    24 13.8 35 Φ25.4 120 1/2-20UNF
    All the values are nominal. Please feel free to contact us if you are interested in other capacity, volume, or gases.
      Gas Mass
    (gr)
    Gas Volume
    at 35℃
    (L)
    Capacity
    (ml)
    Dimensions (mm)
    Body Diameter Body Length Thread/
    Neck Diameter
    CO2 27 15.5 40 Φ28.6 120.6 3/4-16UNF
    28 16.1 38 Φ21.0 160 Φ9.0
    28 16.1 38 Φ21.0 161 3/8-24UNF
    33 19.0 44 Φ25.4 139.7 1/2-20UNF
    33 19.0 46 Φ30.0 109 1/2-20UNF
    38 21.8 50 Φ30.0 118 3/8-24UNF
    28 16.1 50 Φ30.0 118 1/2-20UNF
    30 17.2 50 Φ30.0 118 1/2-20UNF
    33 19.0 50 Φ30.0 118 1/2-20UNF
    38 21.8 50 Φ30.0 118 1/2-20UNF
    35 20.1 51 Φ30.0 118 5/8-18UNF
    All the values are nominal. Please feel free to contact us if you are interested in other capacity, volume, or gases.
      Gas Mass
    (gr)
    Gas Volume
    at 35℃
    (L)
    Capacity
    (ml)
    Dimensions (mm)
    Body Diameter Body Length Thread/
    Neck Diameter
    CO2 45 25.8 60 Φ30.0 138 1/2-20UNF
    45 25.8 60 Φ30.0 138 5/8-18UNF
    56 32.2 78 Φ30.0 170 1/2-20UNF
    60 34.5 83 Φ30.0 179 1/2-20UNF
    60 34.5 95 Φ40.0 130 1/2-20UNF
    71 40.8 98 Φ40.0 134 5/8-18UNF
    74 42.5 98 Φ40.0 134 5/8-18UNF
    All the values are nominal. Please feel free to contact us if you are interested in other capacity, volume, or gases.
  •   Gas Mass
    (gr)
    Gas Volume
    at 35℃
    (L)
    Capacity
    (ml)
    Dimensions (mm)
    Body Diameter Body Length Thread/
    Neck Diameter
    O2 24.7 19.5 98 Φ40.0 145 5/8-18UNF
    N2 1.8 1.6 10 Φ18.6 64 Φ8.6
    2.2 2.0 15 Φ18.6 82.1 Φ7.3
    18.5 16.7 95 Φ40.0 130 5/8-18UNF
    He 2.5 15.8 95 Φ40.0 134 5/8-18UNF
    Ar 22.7 14.4 83 Φ30.0 179 1/2-20UNF
    26.9 17.0 95 Φ40.0 134 5/8-18UNF
    Air 19 16.6 95 Φ40.0 130 5/8-18UNF
    All the values are nominal. Please feel free to contact us if you are interested in other capacity, volume or gases such as helium and argon.

Made-in-Japan Quality

The mini gas cylinders and gas handling equipment, including regulators, are made at our Tsuga factory in Tochigi, about 100 kilometers from Tokyo. The factory has been certified as a producer of mini high-pressure gas cylinders with a capacity of less than 100cc by the High Pressure Gas Safety Institute of Japan, KHK*.
For more information about NTG’s quality, please see Quality Control.

*KHK, Koatsu-gas Hoan Kyokai, is a specialized institute, established in 1963 in accordance with the High Pressure Gas Control Act, under the charge of the former Ministry of International Trade and Industry, now the Ministry of Economy, Trade and Industry.

Mini Regulators and Piercing Valves
– NR Series Regulators

All made at our regulator production facility in Tochigi, NTG regulators are extremely compact, highly functional and able to flexibly control the pressure of many types of gases.
By screwing a cylinder into the inlet port of a regulator, the cap of the cylinder is automatically pierced by a cut pin integrated inside the inlet port. The NTG cut pin is designed not to allow gas leakage during the puncturing process of a cylinder.
You can maximize the performance of these regulators by using them with our gas cylinders.

SPECIFICATION

      NR-30 NR-24 NR-18 NR-10
MATERIAL BODY Brass
Aluminum
DIAL Brass
CONFIGURATION INLET
PORT
5/8-18UNF
(Female)
1/2-20UNF
(Female)
3/8-24UNF
(Female)
OUTLET
PORT
Rp 1/8
(Female)
1/8-27NPT
(Female)
PRESSURE
GUAGE
Adjustable
Preset
PRESSURE SECONDARY
PRESSURE
Adjustable
Preset
OUTLET
PRESSURE
RANGE
Adjustable
(MPa)
0.03~0.08
0.05~0.13
0.1~0.3
0.03~0.2
0.05~0.35
0.1~0.55
Preset
(MPa)
0.03~0.2
0.03~0.35
0.1~0.9
0.2~0.8
○:STANDARD   △:OPTION

Safety Measures

NTG regulators are made with safety devices. A built-in rupture disc on the primary side and a safety release valve on the secondary side of a regulator function to protect against over-heating and over-pressure events.