Stuffing Box Gate Valve

Inspect the gland the gland should be able to freely enter the stuffing box all the way.

Stuffing box gate valve.

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. The gland must not be set up or packed so tightly that the stem binds. The valve box may be interfering with the operating key. Loosen and retighten stuffing box bolts and nuts evenly.

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. If this does not stop the leakage repack the stuffing box. Look for burrs or scaling. Deep stuffing boxes are standard on gate and globe valves.

If the leak persists a bent or scored valve stem may be the cause of the trouble. Inspect all of stem gate the valve should be all the way open to inspect the entire stem gate. 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.

The design provides extra packing for a more reliable stem seal or sufficient depth for packing with an optional lantern ring in the middle. Note whether the gland nose is.