I purchased a Weller WSD161V soldering station (similar to this one, at least with regards to the pneumatic system I'm about to describe -- sorry, I was unable to find a manual for my specific model on the internet) with a DSX80 desoldering iron.
This desoldering iron works like an automatic desoldering pump -- when pressing a button on the iron, it suctions the molten solder.
To work, it needs (as described on the link above) a 35 l/min supply of dry, oil-free, 58-87 psi (4-6 bar) compressed air. I recall reading somewhere that there is a venturi inside the soldering station which generates the vacuum for the pump.
Due to space and noise constraints, I decided to purchase a tankless air compressor -- specifically, the Einhell BT-AC-180. It is able to supply compressed air at a pressure of 8 bar, with a flow rate of 77 l/min at 4 bar and 63 l/min at 7 bar, so it should be plenty to supply my desoldering iron.
However, I have a couple of questions -- keep in mind my expertise is in electronics, and I have very little knowledge of pneumatic equipment:
The compressor doesn't appear to have any kind of pressure regulator. Since my desoldering system only consumes 35 l/min of air, which is well above what the compressor can supply even at a pressure of 8 bar, I understand the compressor should well be capable of supplying the full 8 bar to the desoldering system. This would be out of spec for the system, and I'm afraid it might blow some kind of safety valve inside it. Does there exist some kind of pressure regulator I can couple to the output of the compressor, which will drop pressure to the safe 4-6 bar range for the desoldering system?
In looking for such a system, I was told by a salesman at a compressor shop that if a tankless compressor's flow is impeded, their internal safety valve will blow, so there needs to be a path for the compressed air to get out at all times. I've learned not to take salesmen at their word, and in this particular case I'm inclined to believe this is wrong, because the compressor in question comes with some kind of pistol which can cut out the flow of air -- I guess the manufacturer wouldn't include such an accessory if it would cause the compressor's safety valve to blow out. Still, since I recently purchased this compressor, there's still time to return it to the dealer if it is unfit for my purpose. Is this compressor compatible with the desoldering system, or should I return it and go for a compressor with a tank?
The desoldering system calls for dry air, and I was told by a salesman that condensation is an issue with compressors -- at first I found it weird since compressing air should increase (not decrease) its temperature, but now I believe I understand the effect, which should be similar to a capillary tube in refrigeration systems: when the flow of air is restricted, its pressure drops and so does the temperature, which may then form condensation. The salesman said the solution to this is adding a filter to the compressor output. Is my understanding of the phenomenon correct? Will a filter solve the problem? What kind of filter should I look for?
Taking into account my complete lack of experience with pneumatic systems, any other tips on how to connect the system, what extra equipment to purchase, etc. are welcome.