High quality micro bore hose suitable for all oxy / fuel applications that require a small or micro flow.

These micro bore "welding hoses" have been manufactured in the UK and produced with due regard for BS EN 3821 even though these hoses fall outside the scope of the standard due to their small size.

These hoses have been manufactured in blue for use with oxygen and orange for use with fuel gases.  Generally red acetylene hose cannot be used with LP gases whereas orange LP gas hose may be used safely with acetylene and this was the reason why Noz-Alls decided to manufacture in Blue & Orange.

The micro bore hoses are super flexible and make them ideal for use with the traditional Model "O" lead burning blowpipe or the even smaller American micro torch known as the Artorch or Little Torch. 
The FN shank may also be successfully operated with the micro bore hoses.

Hoses should always be used as short as possible to safety, the longer hoses are offered so as to allow access where it is not possible to have cylinders close to the application.  - See notes on purging below - VERY Important.

These hoses are supplied with G3/8 torch connections and G3/8 regulator (FBA) connections, left hand for fuel gas and right hand for oxygen. 
These micro bore hoses with G3/8 torch connections are only for use when using a small low flow torch / nozzle but the larger thread connection is required due to adaptors having to be used to fit to the torch / blowpipe.

Micro Bore Hose Length -  Micro bore hoses are typically used with the smallest of nozzle sizes on small torches, therefore please note the following which is very important for your safety and that of your equipment.
Lack of purging or incorrect purging is the major cause of flashbacks in gas equipment this is compounded by the use of small nozzles which makes purging more difficult to achieve.
Therefore the use of long lengths of micro bore hose is not recommended for everyday use, from a safety point of view, where access is required to reach a job, lifting and positioning cylinders would present a safety risk then it is good practice to fit long hoses on a temporary basis as the overall risk to safety is reduced.  
When long hoses are fitted remember that the hoses will require purging correctly,  Lead "burning" using the Model "O" blowpipe / torch or the Smith type Little Torch the nozzle should always be removed from the torch to purge the gases. 
The fuel gas & the oxygen must be purged from each hose prior to lighting up.  Due to the small orifice size in the Model "O" nozzles (even smaller in the Smith Little Torch nozzles) if the nozzle remains in the torch the purging time would be very extended as an example the Model "O" #1 oxy / acetylene nozzle would take 5 minutes of purging per hose to clear 5metres of micro bore hose based on moving 2x volume of hose If you were using standard 6.3mm bore x 5m hose set this would require 18 minutes of purging per hose!
Therefore you may see how important it is to remove the nozzle to purge correctly - with the nozzle removed the hoses may be purged in a matter of a few seconds.