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Balloon Gas Info


Pricing & Cylinder Capacity
Terms & Conditions of Hire
Do's & Don'ts when using balloon gas (helium) cylinders
Health & Safety Information

We supply balloon gas cylinders in three sizes (V, T & E33); the number of balloons you can inflate depends on the size of the cylinder chosen.

Use the chart below to determine the size of cylinder you need. It shows the approximate number of balloons that can be expected from each size cylinder when the balloons are fully inflated to the sizes shown.

BOC Cylinder Type 

 Cylinder Details 

Cylinder Types:  V       T       E33 

LATEX BALLOONS SIZES: 9"/10”    11”/12”     16”    36”


'V' CYLINDER:  £120.00 incl. VAT

Weight:     16kg
Height:      970mm
Diameter: 140mm
Volume:    1.81m3 
Will inflate approx.:  200 x 9"/10”   110 x 11”/12”     50 x 16”   4 x 36”  - LATEX ( 125 x 18" FOILS)

'T' CYLINDER: £185.00 incl. VAT

 Weight:     29.5kg
Height:      910mm
Diameter:  203mm
Volume:     3.6m3 
Will inflate approx.: 400 x 9"/10”   220x 11”/12”    100 x 16”   8 x 36”  - LATEX ( 250 x 18" FOILS)

'E33' CYLINDER: £310.00 incl. VAT

Weight:     46kg
Height:    1180mm
Diameter:  230mm
Volume:      8.56m3 
Will inflate approx.: 950 x 9"/10”   600 x 11”/12”    250 x 16”   36 x 36”  - LATEX ( 590 x 18" FOILS)

Above represents approximate quantity that can be inflated

£150.00 - Returnable deposit required on hired equipment

There are NO Rental Charges for the first 7 days of hire. Any cylinder held for longer will be subject to a monthly (£19.99) rental charge.

For delivery and collection charges please call us on 020 8906 3302

Cylinders can be collected from our shop or delivered (and collected) in the London post code area and locations close to our shop. For addresses further away from the shop BOC will deliver and collect but ONLY to business premises and NOT residential addresses.

Terms & Conditions of Hire
All prices are inclusive of VAT.
The gas cylinder and filling nozzle remain the property of The Party Shop/Balloonland at all times.
If picking up the cylinder yourself we will require a cash deposit or credit card payment. Your deposit is refunded on the safe return of the hire equipment.



 Please click on the CONTACT link at the top right of the page for our shop address and information on how to find us.

Box includes helium gas cylinder and inflator valve, 9" balloons (approx. 23cm) and a spool of ribbon. It is lightweight, portable, safe to transport by car, easy to use and of course completely disposable.

PLEASE NOTE:  9" (23cm) diameter latex balloons filled with helium will float for approximately 5-7 hours.

There are 2 sizes available: 30 party pack @ £39.99 and a 50 party pack @ £49.99 

To book a Disposable Cylinder Party Kit for collection please call our shop on 020 8906 3302

Do's & Don'ts to keep you safe

The Do's

Read, understand and observe the safety precautions on the cylinder neck label and the warning on the side of the cylinder.
Use a cylinder hand truck to move cylinders.
Always store cylinders in a well ventilated area and in an upright position so that they cannot be tipped or pushed over.
Transport cylinders only in a well ventilated truck.
Always use a regulator designed for balloon filling operations.
Call us immediately if questions arise or if more information is needed.
Check all connections for leaks before filling balloons.
Do not use leaky equipment.
Close the cylinder valve after each use and when the cylinder is empty.

The Don'ts!

Do NOT leave cylinder unattended.
Never place cylinder where it could come into contact with an electrical circuit.
Do NOT store cylinder in direct sunlight or near sources of radiant heat.
Never use cylinders as rollers.
Never allow cylinders to drop or strike together violently.
Do NOT allow anyone to breathe helium from cylinders or from filled balloons, although not poisonous it can result in asphyxiation.
Do NOT allow children or any unauthorised persons to handle cylinders or use balloon filling equipment.
Never transport the cylinder with the filling nozzle attached, as this could cause damage and will be charged for.

Health & Safety InformationHelium is a colourless, odourless compressed gas. It is shipped as a compressed gas (at pressures up to 300 bar) in high pressure steel cylinders or as a liquified gas in suitable vacuum dewars. Helium is extremely inert. There are no known toxicological effects or ecological damage caused by this product. Under no circumstances should helium be inhaled due to the hazard of asphyxiation

Balloon Gas (Helium) Properties

Chemical Formula  He
Atomic Weight 4.0026g
Specific Volume (@21'C, 1.01325 bar) 6030.4ml/g
Vapour Pressure (@21'C) n/a
Boiling Point (@ 1.01325 bar) -268.94'C
Absolute Density Gas (@24'C, 1.01325 bar) 0.1656g/l
Relative Density Gas (@24'C, 1.01325 bar) (Air =1) 0.138
Critical Temperature  -268'C
Critical Pressure  2.29 bar 
Flammability Limits in Air (volume %) non - flammable

Remember - NEVER inhale ballon gas as it is an asphyxiant and does not support life.

PLEASE BE AWARE: Helium is a safe, natural, non-toxic, non-inflammable, inert gas. However, although not poisonous, when inhaled it can be harmful, even deadly. When inhaling helium, the body & brain are deprived of oxygen which can result in suffocation. Also, helium is very cold when it leaves the tank & could freeze vocal chords. ~DO NOT INHALE~


Details given here are believed to be correct at the time of writing. Whilst proper care has been taken in the preparation of this document, no liability for injury or damage resulting from its use can be accepted.