Deep stuffing boxes are standard on gate and globe valves.
Stuffing box gate valve.
The valve box may be interfering with the operating key.
Inspect all of stem gate the valve should be all the way open to inspect the entire stem gate.
The gland must not be set up or packed so tightly that the stem binds.
Look for burrs or scaling.
The design provides extra packing for a more reliable stem seal or sufficient depth for packing with an optional lantern ring in the middle.
The speaker mentioned that an ideal stuffing box contains 5 rings of packing and that deeper stuffing boxes are not preferred as only the two packing rings nearest the outside of the valve are fully compressed by the force from the packing follower.
Loosen and retighten stuffing box bolts and nuts evenly.
Designed to provide long service in high pressure pump and standpipe manifold systems our rugged valves created tight shutoff at every closing cycle and outperform even after long.
Some factors to consider include.
If the stem of a globe valve is in good condition stuffing box leaks can usually be stopped by setting up on the gland.
Note whether the gland nose is.
The stuffing box bolts and nuts may have been tightened down unevenly during assembly.
If this does not stop the leakage repack the stuffing box.
If the leak persists a bent or scored valve stem may be the cause of the trouble.