MOGAS Watson Series Installation, Operation And Maintenance Manual

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Installation, Operation

and Maintenance Manual

for the

MOGAS Watson Series Ball Valve

PREPARE THE VALVE FOR

INSTALLATION

INSTALL THE VALVE

PROPERLY

MAINTAIN THE VALVE FOR

OPTIMAL OPERATION

AND PERFORMANCE

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Summary of Contents for MOGAS Watson Series

Page 1 Installation, Operation and Maintenance Manual for the MOGAS Watson Series Ball Valve PREPARE THE VALVE FOR INSTALLATION INSTALL THE VALVE PROPERLY MAINTAIN THE VALVE FOR OPTIMAL OPERATION AND PERFORMANCE...
Page 2 Read Before Installing 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 •...
Page 4: Valve Item Reference Number
Seat Ring Body End Connect Body Gasket, Spiral Wound Stem Stem Seal Thruster, Gland Flange Gland Flange Ring, Stem Packing Stud, Body Nut, Body Stud, Gland Nut, Gland Quantity varies with valve size © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 6: Transport And Storage
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. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 7: Pre-Installation
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.
Page 8: Installation
Valve item numbers shown in bold correspond with items shown in the Valve Item Reference Number section (pages 4 – 5) of this document. VERIFY OPERATING POSITION Note: The MOGAS Watson Series valve operates counter-clockwise to open, clockwise to close. While looking in the bore, open and close the valve. Note: Larger valves may require the actuator to be in place to rotate the ball.
Page 9 When securing other end types, please contact MOGAS Service for proper procedures. Note: Straddle centerline hole orientation MOGAS valve flanges are supplied in the customary “straddle centerline” hole orientation, unless otherwise specified. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 10: Operation
OPEN / CLOSE All Watson Series ball valves are designed for on / off services only. To operate, turn counter-clockwise to open and clockwise to close.
Page 11: Maintenance
Valves should always be fully opened and fully closed to wipe away any accumulation on the sealing surfaces. ACTUATOR LUBRICATION Keep hydraulic, pneumatic and worm gear actuators fully lubricated according to actuator manufacturer’s specifications. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 12: Replace Ball & Seat
Remove all remaining media from the valve. MOVE VALVE TO AUTHORIZED REPAIR ORGANIZATION Remove all remaining media from the valve. The service organization will refurbish the valve by replacing all gaskets, seals, packing, and ball and seat set. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 13: Replace Stem Packing
. Use plyers to work the gland flange thruster off the stem. Inspect for corrosion, erosion and damaged surfaces. CAUTION! Do not scratch or create any burrs, which could cause a leak. THIS WILL AFFECT THE VALVE WARRANTY. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 14 Note: Each Watson Series stem packing set will contain three to five rings total. They are all made from the same graphite material, but sets are different diameters, thicknesses, and shapes, depending on bore size.
Page 15 Ensure all rings are snugly fitted all the way down against the previous ring. RE-INSTALL GLAND FLANGE THRUSTER AND FLANGE Slide gland fland thruster over stem and push snugly against stem packing , followed by gland flange © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 16 Once the valve is placed into operation, torque all nuts evenly per the specifications included with the test certificate for each individual valve serial number. RE-INSTALL TOP WORKS Repostion the handle or actuator, being careful of the alignment. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 17: Disassembly
SECURE VALVE Turn valve on body end and secure valve with clamps or bolts to allow for stable disassembly. REMOVE NUTS Loosen body nuts from body bolts , and then remove all nuts. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 18 REMOVE END CONNECTION AND BODY STUDS Pull end connection off valve body It may be necessary to use a tool, such as a rubber mallet, to loosen the end connection. Remove body studs © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 19 Do not scratch the ball or internal components. Scratches could cause a leak. THIS WILL AFFECT THE VALVE WARRANTY. 01 (one dot) facing body. Mark ball Inspect ball for damage. Mark centerline on seat face inside body cavity. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 20 Do this by using a rubber mallet to tap the stem further into the the valve body cavity. Use plyers to work the gland flange thruster off the stem. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 22 REMOVE SEAT RING Remove seat ring from body seat landing. The seat ring may be afixed to the bottom of the seat REMOVE BODY GASKET Remove body gasket from body © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 23: Re-Assembly
Position valve upright so it lays on the body flange. Apply Krytox™ or equivalent lube inside packing box. Note: Each Watson Series stem packing set will contain three to five Flat ends face out rings total. They are all made from the same graphite material, but sets are different diameters, thicknesses, and shapes, depending on bore size.
Page 25 Seats identified with a odd number fit the body only; seats identified with an even number fit the end connection only. Seat identification is also provided inside the stem slot of the ball to ensure correct assembly of mate-lapped components. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 26 Lower ball in the closed position into body ensuring matching numbers on ball and seat. INSTALL BODY STUDS Apply anti-seize on body studs and hand tighten studs into body holes until they bottom out. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 27 Lay the second seat ring seal onto the back of the second seat INSTALL BODY GASKET Lay the body seal onto the groove on valve body © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 28 Install body nuts onto body studs . Only finger tighten the nuts. INSTALL GLAND FLANGE AND THRUSTER Slide gland fland thruster over stem and push snugly against stem packing , followed by gland flange © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 29 CAUTION! Torque the valve body bolting per the specifications included with the test certificate for each individual valve serial number. © Copyright 03/31/2021 MOGAS Industries, Inc. www.mogas.com...
Page 30 PRESSURE TESTS Move valve to test stand. Hydrostatic Shell Test This test is performed at MOGAS while the ball is partially open. This test is not possible at the field. If partially opening the ball is not possible due to high initial torque, pressure the valve from one side to about 1000 psi while ball is closed.
Page 31: Locate Valve Information
Align length of handlever inline on stem . Handlever should slide into place. Note: The MOGAS valve operates counter-clockwise to open, clockwise to close. Using the handlever, stroke the ball to ensure it is rotating properly, and that the ball’s position matches the open / closed position of the handlever.
Page 32: Return Merchandise Authorizations (Rma)
• Operating temperature (max. F) • Operating pressure (max. PSI) • Actuator specifics Contact the MOGAS Service department to obtain authorization and to receive shipping instructions. The RMA request may also be submitted online by accessing the Service page of our website (www.mogas.com).

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