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Bray TRI LOK Operation And Maintenance Manual

Triple offset valve
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TRI LOK
TRIPLE OFFSET VALVE
OPERATION AND MAINTENANCE MANUAL
The
High
Performance
Company

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Summary of Contents for Bray TRI LOK

  • Page 1 TRI LOK TRIPLE OFFSET VALVE OPERATION AND MAINTENANCE MANUAL High Performance Company...

  • Page 3: Table Of Contents

    4.1 Stem Seal Replacement ..................5 4.2 Table 2: No. of Stem Seals & Torque Values for Gland Retaining Units ..5 4.3 Body Seat Replacement .................6 4.4 Disc Seal Ring Replacement ................7 4.5 Table 3: Tightening Torque Values For Individual Body Seats & Disc Seal Rings ..........9 5.0 Complete Valve Disassembly.................9 6.0 Valve Assembly ....................10 7.0 Valve Part Diagram ..................11 FOR MORE INFORMATION ON THIS PRODUCT AND OTHER BRAY PRODUCTS PLEASE VISIT OUR WEBSITE – www.bray.com...

  • Page 4: Safety Information

    EM p ErATUrE onSiDErATionS specifications of the examination certificate valid in The surface temperature of the Tri Lok valve is wholly country of operation must be also observed. dependent on the ambient temperature in combination with the temperature of the process medium. The maximum 1.2.1 M...

  • Page 5: Introduction

    The valve is inherently fire safe, and has been qualified Where the Tri Lok valve is used near sources of high cur- to ISO 10497 and API 607, fifth edition standards. rent or magnetic radiation, provisions shall be made to...
  • Page 6 4. Whenever possible, install the Tri Lok with the stem in horizontal position with respect to the ground. If b. This table assumes that the valve is perfectly centered this installation is not possible, Bray recommends in the pipe flanges.

  • Page 7: Maintenance

    (26), depending on valve size. Note assembly posi- tions of the operator or actuator and the mounting The Tri Lok valve must be in closed position to be hardware for subsequent reinstallation. removed from the line. Otherwise, the sealing edge 2.

  • Page 8: Body Seat Replacement

    ( Pg. 13 ) (12). Remove the disc seal ring retainer (12). If the Bray recommends that both the body seat (8) and the disc old disc seal ring (13) is to be reinstalled, extract it seal ring (13) be replaced at the same time.

  • Page 9: Disc Seal Ring Replacement

    In addition, this procedure is not recom- seat retaining cap screws (9) and install the screws mended for large Tri Lok valves where flipping the valve (9) finger-tight. over may be more difficult than removing the body seat (8) and installing the disc seal ring (13) solely from the 10.
  • Page 10 BRAY Tri Lok Triple Offset Valve Operation and Maintenance Manual 3. Loosen up all the disc seal ring retaining cap screws 8. Lubricate the sealing surfaces of the disc seal ring (10), but leave them in the valve with the disc seal (13) and the body seat (8).

  • Page 11: Complete Valve Disassembly

    BRAY Tri Lok Triple Offset Valve Operation and Maintenance Manual 3. - T Ab l E ighTEning orqUE Al UES for ETAining crEwS LBf-in ETAining crEwS Class 150 Valves Class 300 Valves Valve Size Seat Torque Seal Torque Jacking Seat Torque...

  • Page 12: Valve Assembly

    6.0 v Al vE SSEM b l y When reassembling the Tri Lok valve, all gaskets, pack- 5. Recommended lubricant for valve components during ing, and seals should be new. Cap screws can be reused valve assembly and/or disassembly are as follows:...

  • Page 13: Valve Part Diagram

    BRAY Tri Lok Triple Offset Valve Operation and Maintenance Manual 7.0 V alVe iagram 6” (150 afer aNSi 150 STEM PLUG PLUG GASKET UPPER/LOWER BEARING BEARING GASKET SPLINED STEM VALVE BODY BODY SEAT GASKET BODY SEAT BODY SEAT RETAINING CAP SCREWS (HEX)
  • Page 14 BRAY Tri Lok Triple Offset Valve Operation and Maintenance Manual oteS...
  • Page 15 BRAY Tri Lok Triple Offset Valve Operation and Maintenance Manual oteS...
  • Page 16 Operation and Maintenance Manual CONTROLS A Division of BRAY INTERNATIONAL, Inc. 13333 Westland East Blvd. Houston, Texas 77041 281/894-5454 FAX 281/894-9499 www.bray.com Bray is a registered trademark of BRAY INTERNATIONAL, Inc. ® © 2011 Bray International. All rights reserved. OM-24-002 02-2011...

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