Gas Solenoid Valves

[Dann]

I am considering installing a remote gas shut off solenoid valve in my gas locker. The only ones I can find take current in both the open and shut states. Does anyone know of a 12v valve that only requires current to open ?

 

[LORDNELSON]

I use a gas solenoid valve linked to a gas sniffer. Do not have details here but will get them next time I am on my boat - the solenoid closes when the sniffer is switched off (or when a gas leak occurs)i It does not use electricity when switched off.

 

[graham]

This one any good?http://www.bes.ltd.uk/nav_graf/frames_cat.htmPut "solenoid valve in the search box on the BES site then look in the second category from the top.

"12 V DC or 240 V AC. 1/4" BSP for LPG or Natural Gas. Normally closed valve which is held open by electric current. Power interruption closes the valve; power supply opens the valve. It can be electrically connected to an alarm system and/or a knock-off switch. May be mounted in any orientation, provided direction of flow agrees with arrow on body.
Note: The knock-off switches P/N 8936 and 13559 maybe used with either of these valves. For these items please click the following link: Knock off switch.
SPECIFICATION: Protected to IP 65 with connector
"

 

[Gymnopedie]

What a good question. I sailed regularly in a Nich. 31 for many years, fitted with a solenoid valve designed by the eloctronically minded owner. It had a fail-safe (no power) off position and was operated by a toggle swithch with warning light located over the chartboard. Oh what peace of mind!

 

[VicMallows]

Can you identify the solenoid valve you are considering? I have never come across such a valve which draws power in both 'on' and 'off' states.

Vic

 

[VicS]

I think he means a motorised valve which requires power to drive it open or to drive it shut rather than a valve that draws power contiuously whether shut or open.

The disadvantage of a motiorised valve is that it does not fail safe like a solenoid valve which is closed by a spring.

The disadvantage of a solenoid valve is that it draws power all the while it is open.

 

[Dann]

[ QUOTE ]
Can you identify the solenoid valve you are considering? I have never come across such a valve which draws power in both 'on' and 'off' states.

Vic

[/ QUOTE ]
The Pilot Gas Valve Contorller draws 215mA on standby and 520mA when open. This is the one that comes up with most of my searches.

Many thanks to Graham for pointing me in the right direction /forums/images/graemlins/grin.gif

 

[VicMallows]

Re: Gas Solenoid Valves - \'PILOT\'

Thanks for the info. Have looked at their site, but am still puzzled what (the simple remote solenoid controller) is doing with 215mA when in 'off' mode....oh well!.

Vic

 

[pvb]

Re: Gas Solenoid Valves - \'PILOT\'

Years ago, I fitted one of these to a Broads cruiser used by my parents. It's designed to accept inputs from gas sensors, and I think also has circuitry which monitors battery voltage. This may explain the power consumption in standby mode.

There's no reason why an ordinary solenoid valve can't be used, with a simple on/off connection.

 

[VicS]

What you are looking for maybe the second item ON THIS PAGE I think

 

[philip_stevens]

Also here http://www.floparts.co.uk/brass_direct22nc.htm

 

[jon]

For a latching valve, ie no power required once switched, go to http://www.seath-haztec.com/

 

[kandoma]

the dutch company "Truma" sells a remote controlled valve, using 40 ma / 12 Volt during use and no current when closed (fail save)
you can find it here

Peter