dear thats a very very common thing , one more thing,,,,,,,,,,the gas solenoid valve which i pulled from instant water heater and rewind it to work with 12V is not avalable in market and it will not be posible for you guys to rewind it ,,,,,,,,,,,but there are some other kind of valves availabe in market which look like this as show in pic ,,,,,,,,,,,,,,you can buy similar ,,,,,,,,,,,,just keep one thing in mind that it wont disturb the gas flow,,,,,,,,,,,,you have seen a similar solienoid valve on CNG kit as well , but it will reduce the gas flow and NG kit wont get enough gas , you can say the passage of gas flow is too narrow in it ,,,,,,,,,as the gas passes through it is of 200 Bar so smaller passage wont creat any problem in CNG kit ,,,,,,,,,,,but here we are dealing with less than 1 bar or may be even less than that ,,,,,,,,,so we need such a gas solenoid valve which wont disturb the gas flow,,,,,,,,,,,,,,,,but i tell you one thing that once i sucessfully use a CNG kit solenoid valve on generator to work with NG ,,,,,,,,,,,but after some alteration,,,,,,,,,,,,,i wont receomend that,,,,,,,,,,,,,,,,,
one more thing,,,,,,,,,,,,,,,the solenoid valve which i use works on very very less current,,,,,,,,,,,,,so i use a very small 12V tranformer,,,,,,,,,,if i use some bigger one than it may over heat / burn the solenoid valve coil,,,,,,,,,,,,,,,,and if you use some bigger valve like the one you see in pic than you much increase the amp of 12V transformer ,,,,,,,,,,mean use some bigger transformer other wise it wont opens the valve ,,,,,,,,,,,,,,
