Flexible Cylinder Interconnection 800mm Long - Acetylene 

Many "standard" oxy / acetylene nozzles consume relatively large volumes of acetylene and require the flow from 2 or 3 large acetylene cylinders, this is achieved by coupling the cylinders together so the flow from both or all 3 acetylene cylinders may be used which provides sufficient acetylene flow to operate the nozzles correctly and safely which means you get the job done more quickly with a lot less operating problems.

When you turn a nozzle off they should not go bang, if they do then the nozzle is either partly blocked by dross or in most cases the nozzle is probably under-running.

These standard nozzles all require a minimum of two large acetylene cylinders to operate correctly, safely and efficiently:-
                              ANM-6  3/32"    -     ANM-6  7/64"      -      ANM-6  1/8"
                              ANME-6  3/32"  -    ANME-6  7/64"    -      ANME-6  1/8"
                              AGNM #19     -      AGNM #25
                              AHT # 50         -        AHT # 100

                              Swaged Type 5    welding # 45   -   welding # 55   -  welding # 70  -  welding # 90

                              ANME-10 HD  7/64"  -  ANME-10 HD  1/8"  - ANME-10 HD  5/32"  - ANME-10 HD  3/16"
                              Gouging A183 #8  -  Gouging A183 #10  -  Gouging A183 #12 
                              Pin Blowing & Gouging A196 # 10  -   Pin Blowing & Gouging A196 # 12  -  
                              Pin Blowing & Gouging A196 # 14
The above nozzles are all for use with UK standard Nozzle Mixing torches / Type 5 shanks. 
There are are of course many other oxy / acetylene nozzles which use higher volumes of acetylene than one cylinder of acetylene is able to deliver, if you are not sure how much acetylene your nozzle consumes please give us a call on 01242 681 052 and we will be able to advise you.

When nozzles require a higher flow than a single cylinder of acetylene is able to deliver the nozzle starts to draw off acetone as well as the gas, the first thing this does is cause a change in the colour of the flame envelope, next the nozzle starts to under-run which can cause the nozzle to suddenly extinguish or to sustain a backfire. The nozzle will definitely extinguish with a loud bang.
The acetone drawn off can damage the regulator followed by the flash back arrestor and eventually the hose when a nozzle is repeatedly operated under running.  Check the inlet and outlet of each part, brown staining generally indicates acetone draw off, generally there is the smell of acetone as well.  The loud bangs will deposit soot on the nozzle seats, torch inlet connections and if severe the hose inlet and FBA outlet.

To get your work tasks completed efficiently nozzles need to function correctly (and safely) so it makes sense to use the correct equipment, couple up the three way cylinder adaptor plus one or two flexible cylinder connections, this is simple readily available and gets the work completed more quickly without all the problems of the pops and bangs associated with under-running.