MOGAS Watson Series Manual de usuario

Installation, Operation

and Maintenance Manual

PREPARE THE VALVE FOR

INSTALLATION

INSTALL THE VALVE

PROPERLY

MAINTAIN THE VALVE FOR

OPTIMAL OPERATION

AND PERFORMANCE

for the

MOGAS Watson Series Ball Valve

All MOGAS valves operate counter-clockwise to open, clockwise to close.

MOGAS valves are supplied in a variety of operator conﬁgurations based

upon customer requirements, and may be operated by

• manual actuation (handlever) • pneumatic actuation

• worm gear actuation (handwheel) • hydraulic actuation

Each of these operator conﬁgurations may be installed and tested prior to

shipping, or shipped separately, depending on customer requirements.

Some valves are supplied with a bare stem or stem adaptor kits to

accommodate a variety of manual or actuated operators.

Please note the conﬁguration of each individual valve and proceed with any

necessary operator adaption procedures prior to installing the valve. CLOSE

OPEN

Sequential procedure

required to perform operation.

Bold numbers correspond

with items shown in the Valve

Item Reference Number

sections.

Warning statement

to prevent unwanted

consequence.

Note(s) to support

procedure.

All information within this manual is relevant to the safe and proper

care of your MOGAS ball valve. Please understand the following

examples of instructional information:

General information or

an alternate / variation

procedure.

Read Before Installing Valve

How to Read this Manual

Note:

The normal direction of ow is from the higher pressure end (upstream)

to lower pressure end when the valve is closed.

CAUTION!

Ensure key length provides and maintains full

engagement.

THIS WILL AFFECT THE VALVE WARRANTY.

PRE-INSTALLATION STORAGE

Valves shall remain stored in their shipping crates

with the lids secured.

INSTALL STEM ADAPTOR

Align stem adaptor 13 so the keyways on stem

adaptor correspond with the keys 6on stem 5.

VALVE ITEM REFERENCE NUMBER ..................................4

TRANSPORT AND STORAGE ........................................6

PRE-INSTALLATION ...............................................7

INSTALLATION ...................................................8

OPERATION.....................................................10

MAINTENANCE....................................................... 11

REPLACE BALL & SEAT ...........................................12

REPLACE STEM PACKING .........................................13

DISASSEMBLY...................................................17

RE-ASSEMBLY ..................................................23

LOCATE VALVE INFORMATION .....................................31

RETURN MERCHANDISE AUTHORIZATIONS (RMA) ....................32

SERVICE CONTACT ..............................................32

Contents

Valve Part Reference Number

Item Description

01 Ball

02 Seat

03 Seat Ring

04 Body

05 End Connect

06 Body Gasket, Spiral Wound

07 Stem

08 Stem Seal

09 Thruster, Gland Flange

10 Gland Flange

11 Ring, Stem Packing 1

12 Stud, Body

13 Nut, Body

14 Stud, Gland

15 Nut, Gland

1Quantity varies with valve size

02 03

Valve Item Reference Number

Manual Adaption (Handlever)

THIS PAGE INTENTIONALLY LEFT BLANK.

These procedures outline the general requirements for

storage of MOGAS valves.

TRANSPORT

For export shipping, valves will be shipped in sea-

worthy, export-packed, plastic-lined wooden crates.

Upon arrival at the site, inspect the general condition

of the valve (and actuator, if supplied) for any potential

shipping damage.

PRE-INSTALLATION STORAGE

Valves shall remain stored in their shipping crates, or

on their pallets, with the lids secured.

Valves are shipped with corrosion-resistant paint

and desiccant dries (dryer bags) for storage up to six

months.

For long-term storage, the machined internal parts of

carbon and low alloy steel valves should be sprayed

with a rust preventative.

Keep all protective covers and plastic liners in place.

REMOVING VALVE FROM SERVICE

Before the valve is removed from the line, it should be

placed in the partially open position to relieve trapped

pressure and prevent further internal damage to valve

components.

Do not place the valve in the fully open position until it

has been cleaned of service debris in the next step.

The valve should be placed in a vertical position, or

raised at an angle. The bore of the valve should be

either steamed cleaned or power washed to remove

slurry and debris.

Rotate the valve to the fully open position to drain

and dry. A petroleum-based rust inhibitor should be

applied through the bore of the valve immediately

after the valve is dry.

Flange protectors need to be secured to each end of

the valve to prevent any foreign debris from entering

the valve. It is recommended to place desiccant dryer

bags inside the valve before storage.

The valve should be stored in the vertical position, out

of the weather (inside), until repairs can be made.

Transport and Storage

REMOVE VALVE

Remove the valve (and actuator, if supplied) carefully

from the shipping crate or pallet using lifting lugs

or nylon straps around the valve body and sturdy

section of the actuator. Do not lift by the actuator

alone.

INSPECT VALVE

Inspect the general condition of the valve (and

actuator, if supplied) for any potential shipping

damage.

Review the valve manual, assembly drawing with the

bill of materials, and the actuator manual (if supplied)

shipped with the valve.

REMOVE PROTECTIVE COVERS

Remove protective covers from the valve ends.

Inspect internally for shipping debris or damage.

INSTALL OPERATOR

The valve comes conﬁgured with a handlever from

MOGAS. It should arrive pre-assembled and tested

from the factory. If already assembled, proceed to

Installation (page 8) and continue with the valve

installation.

If the valve does not have a handlever installed, you

must install the appropriate adaptor and handlever to

open and close the valve prior to valve installation.

Pre-Installation

While looking in the bore, open and close the valve.

Note:

If a choice is available, the valves should be installed with the ow of the

media from the end piece to the body.

Note:

The MOGAS Watson Series 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.

Watson Series Valves are bi-directional valves and

may be installed in either direction.

Note:

Larger valves may require the actuator to be in place to rotate the ball.

Note:

Valve item numbers shown in bold correspond with items shown in the

Valve Item Reference Number section (pages 4 – 5) of this document.

CAUTION!

The actuator, if supplied, 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.

CAUTION!

All welding / grinding debris must be thoroughly

ﬂushed from all associated piping before valve is

installed.

THIS WILL AFFECT THE VALVE WARRANTY.

Fully OPEN position.

Fully CLOSED position.

Installation

SECURE VALVE IN PLACE

For raised-face ﬂange connections, install ﬂange

gaskets and bolting per customer requirements. When

securing other end types, please contact MOGAS

Service for proper procedures.

Note:

MOGAS valve anges are supplied in the customary “straddle centerline”

hole orientation, unless otherwise specied.

Straddle centerline hole orientation

PROTECTING THE VALVE

The valve should be lifted with slings around the valve

and not from the stem or actuator.

Flanged raised faces should be protected at all times

prior to installation to prevent possible damage.

Note:

Actuator, gear operators and handle stops are pre-set at the factory

and should not require any further adjustments. Should the actuator or

gear operator require removal for installation, please call the factory or

authorized Service Company rst.

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.

Installation

CAUTION!

Temperature and media compatibility should be

veriﬁed prior to installation to assure the valve is

able to perform in the desired application.

VERIFY OPERATION

The valve should be opened and closed several times

and the packing gland nut or bolts should be checked

to make sure they are snug and applying a sealing

force on the packing prior to applying pressure.

All Watson Series ball valves are designed for on / off

services only.

To operate, turn counter-clockwise to open and

clockwise to close.

Note:

When cycling the valve open or close, make sure that the valve is fully

opened and fully closed. This wipes debris from the ball and ensures

optimal performance and long valve life.

OPEN / CLOSE

CAUTION!

Throttling with ball valves is NOT recommended.

Prolonged exposure of a portion of the ball to ﬂow

can compromise the sealing integrity of the valve.

THIS WILL AFFECT THE VALVE WARRANTY.

Fully CLOSED position.

Fully OPEN position.

Partially OPEN position

(not recommended).

OPEN

Operation

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