Page 82 - Pneumatic ebook (2)_draft 13 sept 2021
P. 82
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
