confused about regulator/solenoid

[ah tong]

Hi everyone!

I am also quite new to CO2 set up, currently borrowing my friend's CO2 system, controling it by just adjusting the regulator and counting the bubbles.

I am thinking of getting a CO2 system myself soon. Just want to know which part of the control portion is considered the solenoid and which part is the regulator. The one i am using only has one reading which i think is the pressure in kPA.
Hope you guys can enlighten me if possible give me some web add with pictures to look at. Thanks!

[bclee]

Regulator connects directly to the CO2 cylinder. It's job is to regulate the output pressure to a safe & usable level.

A soleniod valve is a electrically activated valve that turn on or cut off the gas flow. It is placed after the regulator and is usually activated by a timer or a pH controller.

There will be a needle valve either before or after the solenoid valve to control the flow rate.

BC

[ah tong]

oh i see. So regulators come with one or two panels, while solenoid is that small black box connected to the regulator?
Thanks man!