Packing Installation Instructions: Valve Stem Gland Packing (3)

Packing Installation Instructions: Valve Stem Gland Packing (3)

Step 3:

Always cut the packing into individual rings. Never wind the packing into a coil in the stuffing box. Rings should be cut with a butt joint. Cut rings by using a spare stem, a mandrel with the same diameter as the stem or a packing cutter. The illustration shows how to use a mandrel to cut packing. Hold the packing tightly on the mandrel, but do not

stretch excessively. Cut the ring and insert it into the stuffing box, making certain that it fits the packing space properly. Each additional ring can be cut in the same manner.


As for valve, we’d like to recommend the following Braided Mechanical Packing products:

ü High Carbon Compression Sealing Packing

ü Graphite Braided Rope Packing

ü Pure PTFE Sealing Packing / Teflon Pump Packing

ü GFO Mechanical Packing / Graphite PTFE Braided Packing


Tenglong Sealing, profession manufacturer of Gland Packing since 1979, and our annual output up to 2000 tons/year.


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