where are double solenoid valves placed

i know that they go to spikes but i dont know where they go on the robot.they they have to be put together in order?

You mean location on the robot or location in the pneumatics setup? Could you be a little bit more specific. If your talking about on the robot then they can be mounted just about everywhere. If your talking about in the Pneumatics Layout and since I’m not very good explaining things Page 11 and 12 of this manual shows how everything should be setup.

On the robot.

They can go anywhere on the robot.

Comment 12 shows pictures of double solonoid valves in consecutve order. Do they have to be like that?

Nope. Basically where ever you have the space to mount it thats where it can go. Just make sure that the Hoses going into and out of the Solenoid are not in the way of moving parts that way the Hoses do not pulled out or get cut into.