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Salvimar vacuum barrel kit

Thread Status: Hello , There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.
It looks nicely made, the writing makes it look very professional!
 
There are more photos on their face book page. I ordered a vintair from subprof and am still waiting for it to arrive (they sell items they don't have in stock :( ). When I finally get it I will let you know what I think, but so far it looks like you cant beat if for price.
 
If the conical piece seen projecting out of the front of the muzzle body with the forward outer section removed is the seal then it may be something like the "Taimen" where the actual sealing element is a short rubber tube with a sealing lip located at its front entrance. The body of this type of seal can stretch slightly allowing larger shaft diameters through it, but with increased friction on the shaft. The capacity of the sealing lip to circumferentially stretch is used on the "Taimen" to allow the larger shaft tail stop diameter through the seal, but it may be a way to use larger spear diameters in the same muzzle unit on the Salvimar version. The downside would be that the larger spear diameters would increase the rate of wear on the sealing lip, but the number of shots between the need to replace the seal would determine how useful that would be, plus any propensity of the seal to leak.

You can change spear diameters in wet barrel guns (provided the shaft tail stop goes through the muzzle bore), but my thoughts are vacuum barrel guns need to be dedicated to a given shaft diameter, which means either changing muzzles or the seals over if the latter can be exchanged in the muzzles without affecting the reliability. I only mention this aspect as there seemed to be a suggestion on the "pescasubacquea" thread about changing spear diameters. http://www.pescasubacquea.net/public/forum3/viewtopic.php?p=327440#p327440
 
The Salvimar muzzle in cross-section tells us that the muzzle vacuum seal is somewhat like that on the "Taimen" in being a "top hat" shape. You can see that the spear tail has a stop diameter here, so evidently that can go through the vacuum seal by momentarily stretching it circumferentially. The question is can the stepped edge go through the vacuum seal without it progressively damaging the sealing lip? If trapped water inside the inner barrel before the shot slightly exceeds the accommodation space in the muzzle at the commencement of loading, i.e. before actually pushing on the spear, then that excess water will push the seal open first thereby allowing the spear tail to pass without actually striking the lip of the seal. A neat trick if you can manage it by letting just enough water in, but no more than required to force the seal open before it takes a hit from the spear tail stop diameter. On the "Taimen" the stepped edge of the spear tail stop is replaced by a tapered polyurethane bush so that there are no hard metal edges which may be sharpened up by repeated line slide/stop ring impacts over time to catch on the sealing lip, whether trapped water forces the vacuum seal open in time or not.
 

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It seems they say it can be used both with freeshaft and a normal slider tail end...

Very interesting and one thing I like about it is that it looks to be quite light. I saw somewhere that it weighs in at 48 grams.

Unfortunately, I don't know what the Evo Air weighs, nor the Tombas, but my personal (uneducated) feeling is that there is def room to slim down most of the options out there. I might be wrong in that though.

Not a bad price either.
 
It seems they say it can be used both with freeshaft and a normal slider tail end...

Very interesting and one thing I like about it is that it looks to be quite light. I saw somewhere that it weighs in at 48 grams.

Unfortunately, I don't know what the Evo Air weighs, nor the Tombas, but my personal (uneducated) feeling is that there is def room to slim down most of the options out there. I might be wrong in that though.

Not a bad price either.

Sealing muzzle is very good design. I like it! However the shooting performance would mainly depends on parts on the shaft like metal ring and slider. I heve not seen the whole configuration yet.
 
I note that the "Salvimar" vacuum cuffs or seals (priced at 8.90 Euro each) are provided in sizes 7 mm and 8 mm, as are the muzzle shock absorbers. I guess that if you have a 13 mm diameter inner barrel then you use the 8 mm shock absorber and either of the vacuum seals to suit 7 mm or 8 mm diameter shafts. The 7 mm shock absorber will probably be used with 11 mm diameter inner barrel pneumatic guns, although "Salvimar" don't make one themselves. Note that the front muzzle section screws on leaving a small gap on the exterior so that you can be sure that the vacuum seal is squeezed up to create a good seal in the muzzle body before the front section hits the limit of its travel when screwing onto the rear section. Using a skirted or overlap outer section gets around leaving a visible gap which would otherwise extend down to the base of the screw thread between the two muzzle sections.
 
It looks like you can use both a 7 and 8mm shaft with the kit for 13mm inner barrel using the shock absorber for 8mm.The vacuum cuffs or seals are the same for 7 and 8mm.
I think that the 8.90 Euro is for three cuffs.
Jégwan
 
I have to say, if I was to buy more gear and guns, I am taking a liking to Salvimar.
I don't know if their sales are there yet, otherwise they might have a nice investor and a long-term plan. Their catalogue is growing and pretty much all of their gear looks well done and well designed. Seems like they are posed to take on the big guys;-)
If I needed a small bandgun I think I would try out one of their Voodoos. It is getting some good feedback and I think I would really like the handle.

The Vuoto, their stock dry barreled pneumatic gun, can be had for Euros 146 for 100cm. That's not expensive at all.

Cressi and Seac will likely make one as well unless they are all too busy making rollers now;-)
No way back now, manufacturers are just being slower than a lot of consumers but my bet is 2014/15 will see everyone making rollers for anything but entry level and no frills guns.

And since, I am speculating already, that might push things back a bit with the dry muzzles. Not sure, but would be nice if the Vuoto would make eg. the One Air cheaper. But I think Omer/Spora is thinking their gun still looks much more advanced and the design is sooo different...;-)

No matter what, these are interesting times.
 
It looks like you can use both a 7 and 8mm shaft with the kit for 13mm inner barrel using the shock absorber for 8mm.The vacuum cuffs or seals are the same for 7 and 8mm.
I think that the 8.90 Euro is for three cuffs.
Jégwan
Yes, it is 3 cuffs, I never looked at the number in a pack. The shock absorber or damper unit is 2.70 Euro each.
 
I have to say, if I was to buy more gear and guns, I am taking a liking to Salvimar...

The Vuoto, their stock dry barreled pneumatic gun, can be had for Euros 146 for 100cm. That's not expensive at all.

No matter what, these are interesting times.

True Gecko. I have some Salvimar gear and it seems to have a good relationship between quality and cost. I like that their products are simple and up to date in what's hot. The Vuoto is an example of this - take an old and proven Magnum and change it to a cheap factory dry barrel canon - just as a dark side spearo would do..

I'm also tempted to buy this kit for a my Sten.
It will be hard to find a cheaper dry barrel gun when the Vuoto comes as an offer...
 
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Yes, it is 3 cuffs, I never looked at the number in a pack. The shock absorber or damper unit is 2.70 Euro each.

Plus 9.9 Euro postage.
What is in kit for 42 euro? Aluminum parts of muzzle, and one cuff (or maybe 3?) for one shaft OD (7 or 8 mm)?
 
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Plus 9.9 Euro postage. What is in kit for 42 euro? Aluminum parts of muzzle, and 3 gaskets? I am not sure...

Not sure either. I have ordered a kit 13 + extra seals and shock absorber from Vidrax, so I will let you know as soon as it arrives...
Jégwan
 
In configuration with Mares or Devoto slider, I suppose, the kit would have same shooting performance as STC x-power. Ancestor kit (UBL) uses dedicated (steel or titanium?) slider which is more hydrodynamic.
 
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Looks like the Vuoto has a titanium shock absorber? (or is it aluminium?) and no power reducer? (which is good!)

Any english speaking stores selling it yet?

I will have to put up a review of my vint air plus 130 soon.
 
In configuration with Mares or Devoto slider, I suppose, the kit would have same shooting performance as STC x-power. Ancestor kit (UBL) uses dedicated (steel or titanium?) slider which is more hydrodynamic.

Looking at the picture I would presume that the kit was supposed to be used with shaft using steel ring and slider on the shaft. Steel ring serving as a guide for the shaft while loading and shooting. Also I see that loading will be much easier if bending the shaft during loading, than with Tomba. Thats very good! But what would guide the "free shaft" during loading? Just the front piece of the kit? In that case shaft would rubbing against the aluminum part and would be pretty loose. If I were using this kit with free shaft I would make different front piece part, maybe in delrin, with boring not more than 7.5 mm for 7 mm shaft. Now that boring in aluminum part might be about 8.5 mm.

 
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