Apr 9, 2013 #1 rajeshkolappan40 Petroleum Joined Apr 2, 2013 Messages 8 Location OM please explain how control valve will operate with timer based?
Apr 13, 2013 #2 TD2K Chemical Joined Jan 11, 2002 Messages 2,629 Location US I'm not sure what you mean by timer based. Upvote 0 Downvote