Braided Packing Replacement Reassembly

Tools & Materials

• Wrenches / socket set sized for valve fasteners

• Torque wrench (calibrated)

• Packing installation tool or packing driver

• Screwdriver / driver bits as required

• Clean lint-free rags and solvent for cleaning

• Approved grease / lubricant

• Replacement plunger packing rings (correct size & material)

• New gasket(s) (if required)

• Safety PPE: gloves, safety glasses, hearing protection

Step-by-step Procedure

1. Confirm maintenance completion for Valve #13

   • Verify all required inspection and repair tasks on Valve #13 have been completed before reassembly (cleaning, seat inspection, valve components checked/replaced). Record findings in the maintenance log.

2. Remove old packing

   • Carefully extract the old packing rings from the packing bore using the appropriate puller or hook.

   • Dispose of used packing according to site procedures.

   • Inspect the packing bore and plunger for scoring, nicks or corrosion. If damage is found, repair or replace affected parts before continuing.

3. Clean and prepare surfaces

   • Clean the packing cavity, plunger surface and surrounding sealing faces with solvent and lint-free cloths.

   • Ensure sealing faces are free of grease, debris and sharp burrs. Lightly polish if needed (by hand).

4. Apply lubricant (grease)

   • Apply a thin, even coating of the approved lubricant to the plunger outer surface and to the packing oil ring as required by the packing manufacturer.

   • Avoid contaminating flange or valve seat faces unless specified.

5. Install new packing rings

   • Stagger/step the joints of multiple rings if required by the packing type.

   • Use the packing installation tool to press each ring evenly into the packing bore until the packing follower can be fitted flush.

   • Ensure the braided packing is seated squarely and not twisted or cut.

6. Install gasket

   • If a gasket is required in the assembly, position a new gasket between mating surfaces, ensuring correct orientation and full contact with bolt holes.

7. Reinstall valve and fasteners (screws/bolts)

   • Refit Valve #13 into place (or reassemble the valve components) and hand-start all fasteners.

   • Tighten fasteners in a cross or star pattern to ensure even compression.

   • Use a calibrated torque wrench to tighten to the specified torque values from the valve or packing manufacturer.

8. Final checks & run test

   • After assembly, perform a pressure or functional test under controlled conditions to check for leaks.

   • Inspect for correct movement and sealing. If any leakage or binding is observed, relieve pressure and rework the packing or fasteners as necessary.

   • Log torque values, parts replaced, lubricant used and test results.