MOGAS C Series, Инструкция по установке, эксплуатации и обслуживанию, Страница: 10 / 31

ESI-6121 Rev D © Copyright 03/2022 MOGAS Industries, Inc. www.mogas.com ESI-6121 Rev D © Copyright 03/2022 MOGAS Industries, Inc. www.mogas.com
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While looking in the bore, open and close the valve.
CAUTION!
The actuator 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.)
Refer to
Rotate Operator – Actuator Adaption
(page
26) for proper procedures to rotate the actuator.
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:
Misalignment can result in valve under- or over-stroke, creating a
potential leak path and affecting warranty.
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.
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:
Larger valves may require the actuator to be in place to rotate the ball.
Fully OPEN position.
Fully CLOSED position.
POSITION VALVE IN PIPING
Verify that the valve and actuator / handlever
orientation is correct.
Verify that the valve is in the open position to prevent
any damage to the ball surface from debris.
Position the valve in line with mating flanges.
Note:
Support or lift as required, using lifting lugs or nylon straps around the
valve body. Do not lift or support by the actuator alone.
CAUTION!
All welding / grinding debris must be thoroughly
flushed from all associated piping before valve is
installed.
THIS WILL AFFECT THE VALVE WARRANTY.
Note:
Valve item numbers shown in bold correspond with items shown in the
Valve Item Reference Number section (pages 4 – 7) of this document.
IDENTIFY SEALING DIRECTION
Identify the preferred sealing direction of the valve,
indicated by
Pressure End stamped on the valve
body
02
.
Note:
The normal direction of flow is from the higher pressure end (upstream)
to lower pressure end when the valve is
closed .
In certain conditions, proper operation may require the indicated flow be
opposed to the line flow. Make sure that the
Pressure End is positioned
toward the highest pressure against the valve in the closed position.
SECURE VALVE IN PLACE
Install flange gaskets and bolting per customer
requirements.
Note:
MOGAS valve flanges are supplied in the customary “straddle centerline”
hole orientation, unless otherwise specified.
VERIFY OPERATION
After installation, open and close several times to
ensure smooth operation.
Straddle centerline hole orientation
These procedures are for raised-face flange
connections. When securing other end types, please
contact MOGAS Service for proper procedures.
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Installation Installation
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