Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


Geektastic

14790 posts

Uber Geek

Trusted
Lifetime subscriber

#230448 24-Feb-2018 11:16
Send private message

We have a twin bottle setup with a valve that has a turning lever in the centre with an indicator that goes red when one bottle is empty.

 

It appears not to function well.

 

If one bottle is empty and one is full, flipping it to full one does not restore the gas supply. The second bottle must be replaced before it works. This seems contra to logic.

 

Is that how it is meant to work or is it faulty?

 

 

 

Also, is there an option where the changeover happens automatically rather than manually?






Filter this topic showing only the reply marked as answer View this topic in a long page with up to 500 replies per page Create new topic
 1 | 2
Goosey
2005 posts

Uber Geek

Lifetime subscriber

  #1963355 24-Feb-2018 11:45
Send private message

Assuming both bottles have their valves open all the time?  i.e. both 'turned to open'?

 

There could be a blockage or a fault with your unit. 

 

Eitherway you need a gas fitting plumber or contact the people who supply you with gas.

 

 

 

 


tdgeek
21379 posts

Uber Geek

Trusted
Lifetime subscriber

  #1963357 24-Feb-2018 11:48
Send private message

We have one gas bottle. The gas guy said we cant have two as its too close to something. Its located outside the kitchen wall, directly under a kitchen window. If there is one there why can we not have two?


 
 
 
 


sleepy
284 posts

Ultimate Geek

Subscriber

  #1963358 24-Feb-2018 11:49
Send private message

Sounds Faulty

 

If both bottles are open it should just change over and show red so you know to order a new bottle.


PhantomNVD
2621 posts

Uber Geek
Inactive user


  #1963478 24-Feb-2018 14:38
Send private message

tdgeek:

We have one gas bottle. The gas guy said we cant have two as its too close to something. Its located outside the kitchen wall, directly under a kitchen window. If there is one there why can we not have two?



Only reason must be distance. There are very strict rules about distance to openable windows and open drains. Perhaps your 1 bottle is just out of range of these on BOTH sides and putting another one in would make it too close on one side or the other?

Bung
3436 posts

Uber Geek

Subscriber

  #1963483 24-Feb-2018 14:53
Send private message

tdgeek:

We have one gas bottle. The gas guy said we cant have two as its too close to something. Its located outside the kitchen wall, directly under a kitchen window. If there is one there why can we not have two?



How far below the window? The clearances increase for more than 100kg of gas but unless you only have enough space for a 1 bottle zone 2x45s shouldn't change anything. You need to switch on the @Aredwood beacon to get LPG Man.

Mavarick
187 posts

Master Geek


  #1963582 24-Feb-2018 18:04
Send private message

I just have one bottle turned on and other off and swap over switch when one is MT, its easier that way as there does seem to be some backfill of emptier one at times from the fuller one


Geektastic

14790 posts

Uber Geek

Trusted
Lifetime subscriber

  #1963901 25-Feb-2018 15:15
Send private message

sleepy:

 

Sounds Faulty

 

If both bottles are open it should just change over and show red so you know to order a new bottle.

 

 

 

 

OK. I figured it should do that (otherwise what's the point of it?!) so I will call someone tomorrow.

 

 

 

Thanks all.






 
 
 
 


chevrolux
4592 posts

Uber Geek

Trusted

  #1963926 25-Feb-2018 16:31
Send private message

On this topic, has any one got a clever geek solution for knowing the switch has happen?

 

We've just moved to our new place which has bottles so it hasn't come up for a swap yet, but I feel like having to go and look at the bottles is just so 1990.

 

Would a camera need to be involved? Or is there some sort of mechanical switchy thing that could just close some contacts hooked up to an arduino?


nickb800
2458 posts

Uber Geek

Trusted

  #1963937 25-Feb-2018 17:01
Send private message

chevrolux:

 

On this topic, has any one got a clever geek solution for knowing the switch has happen?

 

We've just moved to our new place which has bottles so it hasn't come up for a swap yet, but I feel like having to go and look at the bottles is just so 1990.

 

Would a camera need to be involved? Or is there some sort of mechanical switchy thing that could just close some contacts hooked up to an arduino?

 

 

I'm thinking the same, as about to move into a place with gas. 

 

The only thing to bear in mind is that whatever solution you do it will probably fall foul of the gas rules, which prohibit anything electrical in proximity to the bottles/valves, and may stop the delivery folk from swapping your bottle. The Elgas website suggests that even UFB ETP are prohibited within a certain distance of the bottles, even though they acknowledge that they are passive and have no 'electricity' in them


Aredwood
3885 posts

Uber Geek


  #1963953 25-Feb-2018 17:33

Ito Koki make change over regulators that have an inbuilt reed switch to indicate that the reserve bottle is now supplying gas.

http://www.itokoki.co.jp/english/products/product_lpg.asp

Part codes beginning with T.

The 8Kg per hour model will be suitable for most setups. Aqualine products seem to be the NZ distributor for Ito Koki. There will probably be overseas suppliers of those regulators as well.

You will need a gasfitter to install it.





gregmcc
1835 posts

Uber Geek

Trusted
Lifetime subscriber

  #1964054 25-Feb-2018 21:12
Send private message

Aredwood: Ito Koki make change over regulators that have an inbuilt reed switch to indicate that the reserve bottle is now supplying gas.

http://www.itokoki.co.jp/english/products/product_lpg.asp

Part codes beginning with T.

The 8Kg per hour model will be suitable for most setups. Aqualine products seem to be the NZ distributor for Ito Koki. There will probably be overseas suppliers of those regulators as well.

You will need a gasfitter to install it.

 

**anything electrical** inside a certain zone around gas bottles becomes a potential ignition point and hazardous area electrical standards apply, a reed switch to determine the position the position would qualify as inside the zone.

 

So unless you want a potential fireball get your gas fitter AND electrician involved on this one


Fred99
10941 posts

Uber Geek


  #1964064 25-Feb-2018 21:19
Send private message

Bung:
tdgeek:

 

We have one gas bottle. The gas guy said we cant have two as its too close to something. Its located outside the kitchen wall, directly under a kitchen window. If there is one there why can we not have two?

 



How far below the window? The clearances increase for more than 100kg of gas but unless you only have enough space for a 1 bottle zone 2x45s shouldn't change anything. You need to switch on the @Aredwood beacon to get LPG Man.

 

 

 

Maybe @aredwood can confirm, but IIRC from last time I looked at the regs, there was a 15kg cutoff for distances separating the cylinder(s) from sub-floor vents, sewerage gully traps, doorways, windows. So 1 x 9kg bottle may be okay, 2x 9kg bottles with automatic switching would exceed that limit. I guess the logic behind that was that if there's a leak, then the total volume of gas leaking is limited by bottle capacity.

 

We use 9kg bottles for gas cooktop only.  I guess I last changed one over in about October last year, so the 9kg limit on the system isn't a particular problem.


Goosey
2005 posts

Uber Geek

Lifetime subscriber

  #1964071 25-Feb-2018 21:24
Send private message

For the benefit of doubt for others... Gas is heavier than air so a leak near a drain etc would likley go down that path so to speak if the conditions were all aligned etc.


PhantomNVD
2621 posts

Uber Geek
Inactive user


  #1964083 25-Feb-2018 21:43
Send private message

and that is why it's so dangerous... the drain/sewer pipe gets a 'puddle' of gas formed in it and then any ignition point created the immediate power release directly related to the size of the puddle.


Aredwood
3885 posts

Uber Geek


  #1964109 25-Feb-2018 22:17

I'm on holiday currently using some flaky mobile data. So I'm not going to try and lookup some very large PDF files right now.

But you would sure hope that a reed switch that was installed in the regulator by the manufacturer would be safe. All of the reed switches I have seen have the switch contacts contained in a glass cylinder, which would avoid any leaking gas from being able to reach the contacts. And assuming the reed switch is connected to a Arduino GPIO pin. There would only be 2.5mW of electrical energy flowing through the switch anyway. (will check later if this is even enough energy to be able to light an air gas mixture)

Or you could just install the regulator so it is out of the clearance zone.





 1 | 2
Filter this topic showing only the reply marked as answer View this topic in a long page with up to 500 replies per page Create new topic




News »

HP unveils new innovations for businesses adapting to rapidly evolving workstyles and workforces
Posted 17-Sep-2020 15:36


GoPro launches new HERO9 Black camera
Posted 17-Sep-2020 09:45


Telecommunications industry launches new 5G Facts website
Posted 17-Sep-2020 07:56


New Zealand ranks 3rd in world in GSMA index
Posted 15-Sep-2020 10:13


Trend Micro Security Suite adds web monitoring to prevent identity theft
Posted 14-Sep-2020 15:37


NVIDIA to acquire Arm for US$ 40 billion
Posted 14-Sep-2020 12:27


Epson launches its next gen A3+ colour EcoTank multi-function printer
Posted 10-Sep-2020 16:08


Sony launches three new native 4K SXRD home cinema projectors
Posted 9-Sep-2020 18:00


Catalyst Cloud brings Kubernetes-based open-source web hosting solution to market
Posted 9-Sep-2020 17:54


Verizon Connect eyes further growth in New Zealand
Posted 8-Sep-2020 09:26


PNY launches XLR8 gaming NVIDIA GeForce RTX 30 series powered by the all-new NVIDIA Ampere architecture
Posted 3-Sep-2020 16:39


NVIDIA delivers greatest-ever generational leap with GeForce RTX 30 Series GPUs
Posted 3-Sep-2020 16:17


Weta Digital advances visual effects and animation in the cloud with AWS
Posted 2-Sep-2020 17:09


Kiwrious lab-in-the-pocket kit designed for schoolchildren
Posted 28-Aug-2020 09:03


Fitbit introduces Sense, its most advanced health smartwatch
Posted 26-Aug-2020 10:14



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.