Faber HP 100 questions?

[Codyjp]

So my dive shop got a good deal on some of these faber HP100's. They are the ones with the fill pressure of 3180.

I guess my question is, should i have gone with the E7-100?

I got this for $280 with valve, vis, boot, and a fill. the E7-100 is about $340?

All I can tell is this is a heavier tank all around but is still a whopping -7lbs when empty that should be good for cold water diving.

it does include the +10% rating to. this may be a dummy question but does this mean it is 100CF at 3180psi or at 3500psi?

Faber HP-100 3180 +10%
38.7 empty -7.26empty -14.76full

 

[Jimmer]

Tanks are rated for capacity at full charge, which means 3500. I'd say you got a good tank, good deal, a lot of people on here dive fabers, including me, and they are great tanks.

 

[Codyjp]

good deal. so at 3180 I don't have 100CF? I was under the impression that at 3500 I had more like 105CF. that would have been better...

 

[Jimmer]

Yeah I hoped the same thing with my LP108's, hoping it meant 108 at 2400, but I was told by a Faber rep that it means after the plus, so mine are 108 at 2640.

 

[Specmac]

According to this chart the Faber tanks must be filled to the + rating to be at full capacity

http://www.centralmassscuba.com/scr_calc.xls

 

[spectrum]

The Faber "3180" HP-100 will be permitted to contain 100 cubic feet as long as the + rating is in place. Like all plus rated cylinders that means rated pressure and the plus adder equals advertised capacity. So to get 100 cubic feet they need to be filled to 3180 + 318 = 3498 PSI.

The FX-100 contains 100 cubic feet at 3442 PSI period.

That cylinder for that $$ for cold water diving is a great deal.

 

[Hoyden]

According to this chart, the Faber HP-100 is 100cf at 3180psi. the FX-100 is 100cf at 3442psi. The "+" means it's rated to handle a 10% "over fill" which would be above it's rated capacity.

http://www.techdivinglimited.com/pub/tanks.html

The fine print at the bottom of that chart says that the specifications are from the manufacturers. The Faber HP100 holds 100 cubic feet at 3495 psi (I know that 10% would be 3498, but Faber's site gives the overfill pressure as 3495 - I guess they think that is close enough). The water capacity according to Faber is 726 cubic inches. Like all tanks that come with a + rating, the "listed capacity" (what we call the tank) is at the + rated pressure. It could be worse - they could be like most aluminum tanks and be at less than the "listed capacity" even at the rated capactity - for example, Luxfer AL80s hold 77.4 cubic feet of air at 3000 psi (at an ambient temperature of 70 degrees F). The HP100 holdas 2.9 cubic feet of air per 100 psi - at 3180 you get about 92 cf. Can you guess that I owned a set of these? Getting short fills for a week at a dive site in FL (they pumped to 3000 psi no matter what you tank's rated pressure was) led me to convert to LP95s.

Jackie

 

[Homunculus]

All I can tell is this is a heavier tank all around but is still a whopping -7lbs when empty that should be good for cold water diving.


Faber HP-100 3180 +10%
38.7 empty -7.26empty -14.76full

i'm also considering getting Faber HP-100 sold in the USA as Blue Steel. I don't know where you got your buoyancy values; i saw the following values at different places selling Faner HP 100 tanks: - 8.41 full/- 0.59 emp

 

[dsteding]

i'm also considering getting Faber HP-100 sold in the USA as Blue Steel. I don't know where you got your buoyancy values; i saw the following values at different places selling Faner HP 100 tanks: - 8.41 full/- 0.59 emp

Those are the Faber FX series, not the older MP series tanks. Different tanks.