Seac Asso 30 S/R working pressure ? Different manuals!

[Marulken]

Hi forum users!

There are 2 different seac pneumatic speargun Manuals.

For asso 30 S/R there are different number of pump strokes to achieve maximum pressure of 20Bar.

Asso 30 S/R
A) 30 pump strokes= 20bar (manual attached)
B) 75 pump strokes= 20bar

Link For manual B)

https://www.seacsub.com/wp-content/uploads/2021/02/PNEUMATIC_User_Manual-1.pdf

Does anybody know what the correct No Pump strokes it is ?

Seem that there is difficult to get a pressure gauge adapter for Seac Asso so I can't measure it.

 

[popgun pete]

I did this comparison chart some time ago, there is the original Asso and the Asso UP. The old table must be wrong for that 30 model. The tables were updated when Seac Sub added the UP model to the range. Either that or they changed the size of the pump.

 

[popgun pete]

I have added in red numbers the figures from the original handbook table to the new table. The old table must have mistakes in it as the 50 and 65 pump strokes are the same except for 20 Bar which is rubbish. Note that in the original handbook there is no differentiation between the S/R and C/R models, whereas in the new tables there is. This makes sense as the regulator partitioning bulkhead takes up space in the tank and effectively reduces its volume, so all other things being equal it takes less pump strokes in a C/R model to reach a given pressure than in the equivalent S/R model as the S/R has a slightly larger tank volume to fill.

I just use the pumping table as a guide and pump the gun up and see if I can still load it, you are unlikely to bust the gun with the pump.

 

[popgun pete]

Just looking at the new table I think they have screwed up the listing as the C/R models display more pump strokes than the S/R models in the Asso UP table when it should be the other way around. Someone doing the table formatting has mucked it up. C/R means with regulator and any extra bulkhead in the tank takes up volume which otherwise would be filled with pressurised air.