Boosters - Page 3

Remco · July 15th, 2012, 08:18 AM

i never seen one working, can't you run it on a old first stage on a dive cylinder?
It only have to do the last part , not the whole filling.

**SoggyBottoms** · July 15th, 2012, 08:56 AM

now that's a very good idea if you were desperate to squeeze in that little bit more; but I generally stop at 230 to cool to 220 to look after the tins. More often it's just 220 for 210ish to save the noise.
I find they work wonderfully from a bank but I only have a 10bar workshop compressor that is being ravaged by driving the booster.
I can't find a good affordable oil free in the UK

Sent from my iPhone using Tapatalk

matt · July 15th, 2012, 10:45 AM

Quote: (Originally Posted by Remco)

i never seen one working, can't you run it on a old first stage on a dive cylinder?
It only have to do the last part , not the whole filling.

Of course. In fact I sometimes do - especially at the start of the season when I want 250 final - I pump all to 250 hot with the air-tools and then the next day top back to 250 with a 7L of drive for the last 20 bar.

Sometimes I do do the whole filling - especially after service.

Matt.

matt · July 15th, 2012, 10:46 AM

Quote: (Originally Posted by SoggyBottoms)

now that's a very good idea if you were desperate to squeeze in that little bit more; but I generally stop at 230 to cool to 220 to look after the tins. More often it's just 220 for 210ish to save the noise.
I find they work wonderfully from a bank but I only have a 10bar workshop compressor that is being ravaged by driving the booster.
I can't find a good affordable oil free in the UK

Sent from my iPhone using Tapatalk

Do you have the same oil lubricated pump I have? My air tools was £35 from Aldi (Wolf made) and has been running fine since 2007.

Matt.

**SoggyBottoms** · July 15th, 2012, 11:06 AM

Quote: (Originally Posted by matthewoutram)

Do you have the same oil lubricated pump I have? My air tools was £35 from Aldi (Wolf made) and has been running fine since 2007.

Matt.

no I have one of these bags of shite Sealey SAC05020 50L 2Hp/1.5Kw Belt Driven Air Compressor Oil Free - Sealey available at Toolbox
according to the numbers it should be fine; but it's crap
so if anyone knows of a good reliable oil free that does deliver 10bar and CAN drive this DTB5C - Diving Gas booster - air driven - to 250 bar pressure

or am I making a rod for my own back by trying for oil free when the drive gas is isolated from the boosted?

***nickb*** · July 15th, 2012, 12:04 PM

I have 3 old 30l half-Js and keep them full of air for top-offs and driving my Mini Sport Haskel. Blows to 260 before the OPV in the booster kicks-in. My 3l tins are 250 bar dumpies so I always fill them right up.

matt · July 15th, 2012, 01:45 PM

Quote: (Originally Posted by SoggyBottoms)

no I have one of these bags of shite Sealey SAC05020 50L 2Hp/1.5Kw Belt Driven Air Compressor Oil Free - Sealey available at Toolbox
according to the numbers it should be fine; but it's crap
so if anyone knows of a good reliable oil free that does deliver 10bar and CAN drive this DTB5C - Diving Gas booster - air driven - to 250 bar pressure

or am I making a rod for my own back by trying for oil free when the drive gas is isolated from the boosted?

We're cross-purposes, Charlie: My pump is oil lubricating (has an oiler) so no need for the oil free (and anyway oil free pumps are not clean, they still leak oil, just less of it).

I wouldn't use one at all on any of the other pumps, though (unless the manufacturer says it is totally separated).

If I were buying again I'd look for 10 bar, or I might botch the OPV on this one one day ;-)

Matt.

RichClark · July 15th, 2012, 09:10 PM

Quote: (Originally Posted by Peter L)

That's the ROB set as sold under expedition dive UK and made by Maximator...

I actually have one of these for sale, complete with whips and 1/2 J's

humpbackdiving · July 15th, 2012, 09:41 PM

Quote: (Originally Posted by RichClark)

I actually have one of these for sale, complete with whips and 1/2 J's

can you pm me your mobile number and will give you a shgout tomorrow?
thks
greg

Garspeed · July 23rd, 2012, 02:57 PM

I have 10 bar, 25 litre, 7cfm oil free compressor for sale if anyone is interested. Drives booster to 200bar all day and 230bar on good day but noisy to run

July 15th, 2012, 08:18 AM	#21
Remco New Member Join Date: Apr 2012 Location: Netherlands Posts: 161 Thanks: 0 Thanked 0 Times in 0 Posts	i never seen one working, can't you run it on a old first stage on a dive cylinder? It only have to do the last part , not the whole filling.
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July 15th, 2012, 08:56 AM	#22 (permalink)
SoggyBottoms CCRX Supporter Join Date: Mar 2012 Location: UK Posts: 216 Thanks: 20 Thanked 5 Times in 5 Posts	now that's a very good idea if you were desperate to squeeze in that little bit more; but I generally stop at 230 to cool to 220 to look after the tins. More often it's just 220 for 210ish to save the noise. I find they work wonderfully from a bank but I only have a 10bar workshop compressor that is being ravaged by driving the booster. I can't find a good affordable oil free in the UK Sent from my iPhone using Tapatalk __________________ Cheers, Charlie
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July 15th, 2012, 10:45 AM	#23 (permalink)
matt New Member Join Date: Apr 2012 Location: London Posts: 1,541 Thanks: 168 Thanked 74 Times in 60 Posts	Quote: (Originally Posted by Remco) i never seen one working, can't you run it on a old first stage on a dive cylinder? It only have to do the last part , not the whole filling. Of course. In fact I sometimes do - especially at the start of the season when I want 250 final - I pump all to 250 hot with the air-tools and then the next day top back to 250 with a 7L of drive for the last 20 bar. Sometimes I do do the whole filling - especially after service. Matt.
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July 15th, 2012, 10:46 AM	#24 (permalink)
matt New Member Join Date: Apr 2012 Location: London Posts: 1,541 Thanks: 168 Thanked 74 Times in 60 Posts	Quote: (Originally Posted by SoggyBottoms) now that's a very good idea if you were desperate to squeeze in that little bit more; but I generally stop at 230 to cool to 220 to look after the tins. More often it's just 220 for 210ish to save the noise. I find they work wonderfully from a bank but I only have a 10bar workshop compressor that is being ravaged by driving the booster. I can't find a good affordable oil free in the UK Sent from my iPhone using Tapatalk Do you have the same oil lubricated pump I have? My air tools was £35 from Aldi (Wolf made) and has been running fine since 2007. Matt.
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July 15th, 2012, 11:06 AM	#25 (permalink)
SoggyBottoms CCRX Supporter Join Date: Mar 2012 Location: UK Posts: 216 Thanks: 20 Thanked 5 Times in 5 Posts	Quote: (Originally Posted by matthewoutram) Do you have the same oil lubricated pump I have? My air tools was £35 from Aldi (Wolf made) and has been running fine since 2007. Matt. no I have one of these bags of shite Sealey SAC05020 50L 2Hp/1.5Kw Belt Driven Air Compressor Oil Free - Sealey available at Toolbox according to the numbers it should be fine; but it's crap so if anyone knows of a good reliable oil free that does deliver 10bar and CAN drive this DTB5C - Diving Gas booster - air driven - to 250 bar pressure or am I making a rod for my own back by trying for oil free when the drive gas is isolated from the boosted? __________________ Cheers, Charlie
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July 15th, 2012, 12:04 PM	#26 (permalink)
*nickb* The JJ Kid Join Date: Mar 2012 Location: Cardiff, UK Posts: 517 Thanks: 78 Thanked 90 Times in 62 Posts	I have 3 old 30l half-Js and keep them full of air for top-offs and driving my Mini Sport Haskel. Blows to 260 before the OPV in the booster kicks-in. My 3l tins are 250 bar dumpies so I always fill them right up.
(Offline)

July 15th, 2012, 01:45 PM	#27 (permalink)
matt New Member Join Date: Apr 2012 Location: London Posts: 1,541 Thanks: 168 Thanked 74 Times in 60 Posts	Quote: (Originally Posted by SoggyBottoms) no I have one of these bags of shite Sealey SAC05020 50L 2Hp/1.5Kw Belt Driven Air Compressor Oil Free - Sealey available at Toolbox according to the numbers it should be fine; but it's crap so if anyone knows of a good reliable oil free that does deliver 10bar and CAN drive this DTB5C - Diving Gas booster - air driven - to 250 bar pressure or am I making a rod for my own back by trying for oil free when the drive gas is isolated from the boosted? We're cross-purposes, Charlie: My pump is oil lubricating (has an oiler) so no need for the oil free (and anyway oil free pumps are not clean, they still leak oil, just less of it). I wouldn't use one at all on any of the other pumps, though (unless the manufacturer says it is totally separated). If I were buying again I'd look for 10 bar, or I might botch the OPV on this one one day ;-) Matt.
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July 15th, 2012, 09:10 PM	#28 (permalink)
RichClark New Member Join Date: Mar 2012 Location: Hove, UK Posts: 16 Thanks: 14 Thanked 0 Times in 0 Posts	Quote: (Originally Posted by Peter L) That's the ROB set as sold under expedition dive UK and made by Maximator... I actually have one of these for sale, complete with whips and 1/2 J's
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July 15th, 2012, 09:41 PM	#29 (permalink)
humpbackdiving Silent but deadly.... Join Date: Mar 2012 Location: Isle of Man Posts: 194 Thanks: 37 Thanked 15 Times in 13 Posts	Quote: (Originally Posted by RichClark) I actually have one of these for sale, complete with whips and 1/2 J's can you pm me your mobile number and will give you a shgout tomorrow? thks greg
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July 23rd, 2012, 02:57 PM	#30 (permalink)
Garspeed Wreck Ferret in training Join Date: Mar 2012 Location: Aberdeen, Scotland Posts: 199 Thanks: 38 Thanked 26 Times in 14 Posts	I have 10 bar, 25 litre, 7cfm oil free compressor for sale if anyone is interested. Drives booster to 200bar all day and 230bar on good day but noisy to run __________________ Wreck Ferret in training
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