Bray TRI LOK Operation And Maintenance Manual Download Page 16 | Manualshive

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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.

© 2009 Bray International. All rights reserved. OM-24-002 08/2009

R

CONTROLS

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Summary of Contents for TRI LOK

Page 1: ...The High Performance Company R TRI LOK TRIPLE OFFSET VALVE OPERATION AND MAINTENANCE MANUAL ...

Page 2: ......

Page 3: ...nance 4 4 1 Stem Seal Replacement 4 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 VI...

Page 4: ... side The non preferred direction of valve installation is with the upstream line pressure on the body seat side and the stem on the downstream side Thepreferreddirectionoflowisindicatedbyanarrow on the valve nameplate 3 0 InstallatIon 1 TriLokisdesignedtobeinstalledbetweenASME B16 5 and ISO 7005 langes When the valve is open a portion of the disc may protrude into the pipe Wafer and lug conigurat...

Page 5: ...minimize operational wear 5 Flange gaskets should conform to the require ments of ASME B16 20 supersedes API Standard 601 for ASME B16 5 langes Spiral wound gaskets such as Flexitallic CG or CGI series conforming toASME B16 20 are recom mended 6 Whenboltingthevalveintotheline usestandard bolting torque as recommended by respective piping standards The valve body seat is inde pendent of the lange b...

Page 6: ...uts Do not pressurize the line without an actuation de vice properly installed and working on the valve CAUTION The Tri Lok valve must be in closed position to be removed from the line Otherwise the sealing edge could be damaged 1 When replacing the body seat and or disc seal ring with the valve in the line in dead end instal lation or with the piping on the body seat side removed depressurize the...

Page 7: ...direction and at 180 degrees to the splice in the ring immediately below Using a packing tube tamp the top ring irmly into position 8 Reinstall gland ring 19 anti blowout retaining ring 21 and gland retainer 22 Re install lock washers 23 and nuts 24 Tighten gland nuts 24 evenly and alternately to the proper torque value given in Table 2 9 Reinstallmountingbracketormountingplate 26 withcapscrewsand...

Page 8: ...nd suitable wire brush care 6 fully clean any remnants of old gasket and foreign matter within the retaining cavity Blow out all threaded holes and gasket grooves with compressed air Remove the disc seal ring retaining screws 10 7 and lock washers 11 from the disc seal ring re tainer 12 Removethediscsealringretainer 12 If the old disc seal ring 13 is to be reinstalled extract it carefully Wipe the...

Page 9: ...c seal ring 13 without remov ing the body seat 8 requires the valve actuation device be removed from the valve and the valve lipped over to allow access to both sides of the valve For that reason this procedure is not suit able for occasions where the disc seal ring 13 needs to be replaced in a valve installed in the pipeline In addition this procedure is not recom mended for large Tri Lok valves ...

Page 10: ... over such that the seat side faces 9 upward Verify that all four alignment marks body body seat disc seal ring disc seal ring retainer are aligned i e verify that the body seat 8 and disc seal ring 13 are in proper positions Using the wrench slowly rotate the disc 15 into the body seat 8 making sure that the sealing edges line up properly with out binding The disc seal ring retaining cap screws 1...

Page 11: ...aring 3 will come out with the splined stem 5 Remove the disc 15 from the valve body 6 Extract all the stem seals 18A and 18B thrust 8 washer 17 and upper bearing 3 taking care not to scratch the stem or the bore of the stuff ing box Valve Size In mm Class 150 Valves Class 300 Valves Seat Torque lb in Nm Seal Torque lb in Nm Jacking Bolt Seat Torque lb in Nm Seal Torque lb in Nm Jacking Bolt 3 80 ...

Page 12: ...in clockwise direction when viewed from top This ensures that the disc seal ring 13 lodges into the body seat 8 before the valve operator or actuator reaches 90 degrees travel Use anti seize compound in the splined connection between the splined stem 5 and the disc 15 Both bearings 3 should be installed after 2 the disc 15 and splined stem 5 have been placed in the valve body 6 Spray lubricant on ...

Page 13: ...DISC SEAL RING RETAINING CAP SCREWS HEx 11 LOCK WASHERS 12 DISC SEAL RING RETAINER 13 DISC SEAL RING 14 DISC SEAL RING GASKET 15 DISC 16 LOCATING DOWELS 17 THRUST WASHER 18A BRAIDED PACKING RING 18B SOLID GRAPHITE RINGS 19 GLAND RING 20 PACKING GLAND SCREW 21 ANTI BLOWOUT RETAINING RING SPLIT RING 22 GLAND RETAINER 23 LOCK WASHERS 24 PACKING GLAND RETAINER NUTS 25 SOCKET HEAD SCREWS W LOCK WASHERS...

Page 14: ...noteS BRAY Tri Lok Triple Offset Valve Operation and Maintenance Manual ...

Page 15: ...noteS BRAY Tri Lok Triple Offset Valve Operation and Maintenance Manual ...

Page 16: ...TIONAL 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 2009 Bray International All rights reserved OM 24 002 08 2009 R CONTROLS ...

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