Will a device work if i have less than the required voltage...

Okay, so we're supposed to be designing a fire suppression system for vehicles. Being the sensor team, our problem at this point is designing the circuit and making sure that everything is getting the proper amount of voltage/current to work effectively. The circuit includes:

-Car Battery: 12vdc
-Bimetal Snap Switch: 14vdc @ 10 amps
-Solenoid Valve: 12vdc @

It is practically impossible to find a solenoid valve and a snap switch with the same voltage rating. My question is, will the car battery provide enough voltage for the snap switch to work effectively? Also, these devices all have different ratings when it comes to Amperage. For example, the solenoid draws current at 20 amps but the bimetal snap switch draws at just 10 amps. Will this cause a problem in the circuit? Will everything just have to work with 10 amps?
Will everything...just work if we set this up in a series or something?

My assumptions: The snap switch is a thermostat, probably with a normally open contact. At some temperature the switch changes state. There is no electricity involved in this action. However the change of state of the switch is going to energize or denergize the solenoid. As such, the 14 vdc at 10 amps is the contact rating. This is just a limitation. The switch does not "draw" 10 amps. The switch can handle a load of as much as 10 amps at 14 vdc. Since a constantly normally energized solenoid would drain the car battery, it must be normally deenergized.

There are just two problems with your proposal. The snap action switch must be of a type which has to be manually reset after operating, or has to be replaced. Otherwise the drop in temperature caused by reduction in fire, and the coolness of the extinguishing agent would cause the solenoid to release, shutting off the agent supply. One can purchase contact-type fire detectors which either must be manually reset, or which must be replaced after operating.