HOW DO YOU REGULATE DIFFERENT PRESSURES WITH THIS PRODUCT ?
IT SAYS IT IS RATED (0-32 PSI)
THOUGH IT REQUIRES 12 V, 12 W
You could vary the current going to the motor, or use PWM control, or any other method of motor control. However, to achieve specific pressures then you’ll want to have a pressure sensor that feeds back to your control circuit.
You don’t regulate the pressure.
It starts out at zero then goes to 32 as you develop vacuum. If you want to regulate pressure you need to buy a pressure regulator from a store that carries those.
Also, this isn’t a question about power supply, in the future, please create a new post for your question rather than piggybacking off an unrelated question.