ESI-6149 © Copyright 01/22/2018 MOGAS Industries, Inc.
www.mogas.com
12
While looking in the bore,
open
and
close
the valve .
Note:
Larger valves may require the operator to be in place to rotate the ball.
CAUTION!
The operator must not be re-oriented without
removal from the valve . This prevents 180° rotation
of the ball and assures the mate-lapped ball and
seat surfaces match . (Seat leakage may occur
when the ball and seat surfaces are not matched
per the engineered design .)
THIS WILL AFFECT THE VALVE WARRANTY .
The
fully open
position is the most important position
to set . It is preferred that the
open
position be set
while the valve is not installed in the pipeline . This
allows for the bore to be properly aligned, ensuring
that no edges are exposed to the flow .
Note:
The MOGAS valve operates
counter-clockwise to open, clockwise to
close
.
VERIFY OPERATING POSITION
Verify that the ball
open
/
closed
position matches the
handlever or actuator
open
/
closed
position indicators .
Note:
ISOLATOR 2.0 valves 3-inch or larger have scribed lines on stem.
ISOLATOR 2.0 valves 2-inch or smaller do not have scribed lines on
stem.
If present, verify that the scribed lines on the stem
05
align with the scribed lines on the gland flange
07
.
These lines are approximate indications . For best
results, make sure the lines never under travel — a
minimum travel of 96° is required .
Note:
Misalignment can result in valve under- or over-stroke, creating a
potential leak path and affecting warranty.
These procedures are for raised-face flange
connections . When securing other end types, please
contact MOGAS Service for proper procedures .
Note:
Valve item numbers shown in
bold
correspond with items shown in the
Valve Item Reference Number
section (pages 4–7) of this document.
Fully OPEN position.
Fully CLOSED position.
Installation
1
!
