Identifying old Faber

[Caveman]

A friend of mine is selling his old 15L Fabers which I want to have serviced and configured for a twinset. It is quite an old Faber; if I have read the markings correct, they were manufactured in 1995. What I want to know is what type of valve thread would match with these cylinders. Of course, modern Fabers are always stamped with the valve thread (M25x2 for instance) but it seems that wasn't always the case.

I am throwing extra caution out there because two years ago I unfortunately bought an old Faber from the 80s which it transpired used a unique 3/4 thread that could not be found anywhere. I even tried BSP and NPSM versions from multiple brands but no dice. The 15s come with valves but do not have any markings on them besides OMS. Although there may be on the back, I have not checked yet. Pictures are attached. Based on what you see, do you have an idea whether or not these cylinders use M25 or 3/4 threads?

 

[runsongas]

if they have a dot spec stamp (eg dot 3aa or dot spXXXXX), they will almost certainly be 3/4 npsm. if they do not have a dot spec stamp, there is a chance they are european/british and bsp or metric thread.

since you are in south africa, i would put the chances of being either BSP or metric at close to 50/50 which is somewhat of an annoyance.

 

[Caveman]

if they have a dot spec stamp (eg dot 3aa or dot spXXXXX), they will almost certainly be 3/4 npsm. if they do not have a dot spec stamp, there is a chance they are european/british and bsp or metric thread.

since you are in south africa, i would put the chances of being either BSP or metric at close to 50/50 which is somewhat of an annoyance.

I think that may be the case. Will need to determine the thread when I take it in for servicing. I am hoping that the threads are metric because sourcing BSP valves in South Africa is extremely difficult, or rather specifically valves which come in LH/RH configs to accommodate manifolds; in which case I would need to see if the valves and manifold that come with this set are fully servicable. Otherwise the set is not really worth buying if I am going to be put through the grinder trying to find the right valves.

 

[runsongas]

the oms valves have service parts available, not sure about sourcing in sa though.