Frosty Posted February 7, 2017 Posted February 7, 2017 Some questions on your fire hydrant / gas cylinder contraptions:What pressure can it be filled to? Obviously the pressure would determine the number of tyres one can seat, before having to refill the cylinder. Where would one "refill/repressurize" it? Assume a mini-compressor at home or at the local garage - both of which might not have that explosive power required to seat the tyre.The cylinder (above) is primarily designed to store products in a high pressure or liquid state, i.e. nitrogen, oxygen, CO2, LPG, or refrigerant, etc. with dedicated refilling sites, so I know it's more than good enough for a home-made tool.
The Flying German Posted February 7, 2017 Posted February 7, 2017 The Cylinder above is as you say a standard pressurised vessel so it can handle a huge amount of pressure. i HAve done a quick Calculation and the cyclinder will easily hold up to 30 Bar i would imagine that roughly 12 Litres at 30 Bar could seat a ton of tires. And Also the Vessel Has a Safety valve tha if over pressurised will blow a safety seal. I have a License in Gas Handling and I would never evr ever use a 2 Litre Bottle or the Likes its an Accident Waiting to Happen Rather come and get a free Bottle. Edit it equates exatly to 360 Litres 12L x 30 Bar is 360 LItres Thats alot of tyres
Frosty Posted February 7, 2017 Posted February 7, 2017 The Cylinder above is as you say a standard pressurised vessel so it can handle a huge amount of pressure. i HAve done a quick Calculation and the cyclinder will easily hold up to 30 Bar i would imagine that roughly 12 Litres at 30 Bar could seat a ton of tires. And Also the Vessel Has a Safety valve tha if over pressurised will blow a safety seal. I have a License in Gas Handling and I would never evr ever use a 2 Litre Bottle or the Likes its an Accident Waiting to Happen Rather come and get a free Bottle. Edit it equates exatly to 360 Litres 12L x 30 Bar is 360 LItres Thats alot of tyresAnd how would you fill it - a normal compressor?
LeoKnight Posted February 7, 2017 Posted February 7, 2017 Some questions on your fire hydrant / gas cylinder contraptions:What pressure can it be filled to? Obviously the pressure would determine the number of tyres one can seat, before having to refill the cylinder. Where would one "refill/repressurize" it? Assume a mini-compressor at home or at the local garage - both of which might not have that explosive power required to seat the tyre.The cylinder (above) is primarily designed to store products in a high pressure or liquid state, i.e. nitrogen, oxygen, CO2, LPG, or refrigerant, etc. with dedicated refilling sites, so I know it's more than good enough for a home-made tool. With regards to the 1kg fire suppression canister, I pumped it with a floor pump to about 9 Bar and that was sufficient for seating a wheel (especially if you take out the inner value)
IH8MUD Posted February 7, 2017 Posted February 7, 2017 I have my Fire Extinguisher tire popper at home I made about a month ago. (still need to post pics ) Most info is on the cylinder. On mine is the following. Tested pressure: 30 Bar.Working Pressure: 15 Bar. I have a nice one with pressure gauge and the "refill" valve (normal schrader valve) in place. I don't sit around and ponder the pressure in the thing. I pressurise it with my T-Max Electrical 4x4 compressor pump from the car battery at home. But the highest I go at home is about 8-bar, then I am reaching limit of the pump. But I have used the Fuel Station/Garage tyre pumps as well.Just pressurise till it does not fill anymore,in other words my vessel and the garage compressor tank is equal in pressure. Never encountered one that could even reach the 10-bar mark on my gauge. I recon my "home-made DIY" model is quite safe as I don'e even reach a 3rd of the tested pressure.
IH8MUD Posted February 7, 2017 Posted February 7, 2017 Here is the Second PicI had the option between this type of cylinder ( mine was car aircon refrigerant vessel) and the Fire Extinguisher. I chose the Fire Extinguisher as it was made from much thicker steel and had the pressure gauge and normal schader refill valve on it from the factory. I only attached the appropriate connector to the end of the pipe to connect it to my tire valve. And I upgraded the pipe itself to proper 8mm air compressor hose. I used all pipes and connections in 8mm (truck or earth moving equipment) format instead of the standard 6mm connection/pipes to get higher airflow.
The Flying German Posted February 7, 2017 Posted February 7, 2017 And how would you fill it - a normal compressor?Yup Normal Compressor or hand pump or gas station doesnt really matter. all the stuff used is Refrigerant quality and can handle up to 30 Bar. If you look at my posts you can see that it took about ten minutes to put this together it would be very easy to include a pressure gauge or lever valve to block rubber hose.
Theunissa Posted March 1, 2017 Posted March 1, 2017 http://www.cwcycles.co.za/product/icetoolz-pro-shop-tool-kit-85a6Will this set ne sufficient to do lets say 90% of maintenance? Sent from my iPhone using Tapatalk
David Marshall Posted March 2, 2017 Posted March 2, 2017 http://www.cwcycles.co.za/product/icetoolz-pro-shop-tool-kit-85a6Will this set ne sufficient to do lets say 90% of maintenance? Sent from my iPhone using TapatalkIt all depends on the bike that you have. It will cover a number of options - such as the older bikes with square taper cranks or outboard BBs and entry level cup and cone wheel hubs. If you have a press fit BB, 11 speed drivetrain and through axle wheels you will need to add tools. Not a bad buy if you don't have any tools - like hex keys or screw drivers - but it certainly is not complete. I would opt to buy the right tool for my bike as the need arises.
LeoKnight Posted March 2, 2017 Posted March 2, 2017 http://www.cwcycles.co.za/product/icetoolz-pro-shop-tool-kit-85a6Will this set ne sufficient to do lets say 90% of maintenance? Sent from my iPhone using Tapatalk It is a nice starting set, but also depends how OCD you are, are you ok with mixing brands or not, ie if you start with icetoolz do you only want to buy icetoolz, or going for the mix and match approach. What I can say, it really make a difference having the correct tool for the job and then working on your own bike.
Theunissa Posted March 2, 2017 Posted March 2, 2017 I'm not OCD. As long as it is decent. David i hear you. I have a 2016 sola 4. I will look at what exactly is in the bike parts wise and buy according to that Sent from my iPhone using Tapatalk
igg Posted March 2, 2017 Posted March 2, 2017 http://www.cwcycles.co.za/product/icetoolz-pro-shop-tool-kit-85a6Will this set ne sufficient to do lets say 90% of maintenance? Sent from my iPhone using TapatalkJust make sure the allen keys are decent, as they'll probably be your most used tools. Nothing worse than rounding off the allen keys. It's a decent starting set, but it's missing a few key pieces and has a few extras you'll only rarely use. No full sized set of allen keys. Working with a multitool is manageable, until you have to remove a 5mm bolt through axle torqued up to 15nm or something with a really long thread. At least there's a full sized pedal wrench.
Grey Hubs Posted March 2, 2017 Posted March 2, 2017 Torque wrench!Any advice on a good Torque Wrench with necessary bits/sockets? I've seen a few, but would want the wrench to cover a wide range of torque up to 20nm...
igg Posted March 2, 2017 Posted March 2, 2017 Any advice on a good Torque Wrench with necessary bits/sockets? I've seen a few, but would want the wrench to cover a wide range of torque up to 20nm... What's your budget?Most of the cycle branded ones don't go that high. You're likely better off hitting up a dedicated tool shop and getting one from there, if you want a single wrench to cover all bases. I just have 2 wrenches as pedals/cranks go up to 50nm.
Recommended Posts
Archived
This topic is now archived and is closed to further replies.