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Victaulic 5-Year Rebuild Kit Instructions Manual

For firelock nxt valves series 768 and 769

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REBUILD KIT INSTRUCTIONS
5-Year Rebuild Kit Instructions for
FireLock NXT
SERIES 768 AND 769
WARNING
www.victaulic.com
VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA.
REV_A
Valves
I-NXT.RBKIT
WARNING
Failure to follow instructions and warnings can cause product
failure, resulting in serious personal injury and property damage.
• Read and understand all instructions before attempting
to install, remove, adjust, or maintain any Victaulic piping
products.
• Depressurize and drain the piping system before attempting
to install, remove, adjust, or maintain any Victaulic piping
products.
• Wear safety glasses, hardhat, and foot protection.
If you need additional copies of any literature, or if you
have any questions concerning the safe use of this product,
contact Victaulic, P.O. Box 31, Easton, PA 18044-0031, USA,
Telephone: 1-800 PICK VIC, e-mail: pickvic@victaulic.com.

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Summary of Contents for Victaulic 5-Year Rebuild Kit

  • Page 1 Victaulic, P.O. Box 31, Easton, PA 18044-0031, USA, Telephone: 1-800 PICK VIC, e-mail: pickvic@victaulic.com. www.victaulic.com VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. REV_A...
  • Page 2: Table Of Contents

    Cover Plate Gasket Diaphragm * Item #3 is not applicable for 1 1/2 – 2-inch/48.3 – 60.3-mm valve sizes. www.victaulic.com VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. REV_A I-NXT.RBKIT_1...
  • Page 3: Removing The System From Service

    Open the water supply main drain valve. Confirm that water is not flowing from the water supply main drain valve. www.victaulic.com VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. I-NXT.RBKIT_2 REV_A...
  • Page 4 NOTE: If the system has operated, open the remote system test valve (inspector’s test connection) and any auxiliary drain valves. www.victaulic.com VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. REV_A I-NXT.RBKIT_3...
  • Page 5: Instructions For Replacing Internal Components Of The Valve (Items

    Keep these washers for re-installation. Remove the clapper from the valve body. Push the latch back (toward the diaphragm). www.victaulic.com VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. I-NXT.RBKIT_4 REV_A...
  • Page 6 11. Continue to pass the latch shaft through the other arm of the latch and valve body. www.victaulic.com VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. REV_A I-NXT.RBKIT_5...
  • Page 7 14. Place the new clapper assembly onto the valve-body seat ring. Make sure the holes in the clapper arms align with the holes in the valve body. www.victaulic.com VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. I-NXT.RBKIT_6 REV_A...
  • Page 8 Make sure the seal ring snaps into the clapper completely. 22. Remove the seal-retaining ring. Save the seal-retaining ring for re-installation. www.victaulic.com VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. REV_A I-NXT.RBKIT_7...
  • Page 9 NOTE: For 1 1/2-inch/48.3-mm and 2-inch/60.3-mm valve sizes, a washer must be re-installed under the head of each cover plate bolt. www.victaulic.com VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. I-NXT.RBKIT_8 REV_A...
  • Page 10: Instructions For Replacing The Diaphragm (Item

    165.1 mm 165.1 6.625 168.3 8.625 219.1 Remove the old diaphragm from the valve body. Discard the diaphragm. www.victaulic.com VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. REV_A I-NXT.RBKIT_9...
  • Page 11 For complete contact information, visit www.victaulic.com I-NXT.RBKIT 6071 REV A UPDATED 03/2010 ZNXT5RBKIT VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA. I-NXT.RBKIT...