Page 81 - Pneumatic ebook (2)_draft 13 sept 2021

How to name a DCV?

no. of ports in a box / No. of boxes– way, method of actuation, method of return DCV

Box 2 3/ 2– way NC pushbutton with spring return DCV
(actuation Box 1 (initial
state) position) Tips:

❑ Label or port marking only at the initial
2
position.
❑ The number of port at each box is the same
❑ The normal position (normally open, NO &
1 3 normally closed, NC) need to refer to the

port 1 of the initial position. This is only for
Number of squares (boxes) = 2 3/2 way DCV

Number of ports in one box = 3
method of actuation = push

button

method of return = spring

INTRODUCTION TO PNEUMATIC SYSTEM 36