Nibco Packing-Gland Installation Manual

Adjustable

Packing Gland

In the manufacturing process of Webstone Ball Valves, a PTFE stem seal is used to seal between the shaft of the handle stem and the valve body. This seal is then compressed around the stem by means of a packing gland, which forms a watertight seal around the handle stem assembly.

Over time, due to various environmental conditions, the PTFE material may expand or contract; thereby affecting the quality of this seal. To combat this, the majority of the packing glands on Webstone’s Ball Valves are adjustable. If a leak should occur, you may adjust the packing gland by tightening it slightly in a clockwise manner as illustrated below. If the leak persists, please contact

Webstone Technical Support at (800) 225-9529.

1. Turn handle nut counter clockwise to remove nut. Remove nut and handle.

2. Turn packing gland gently and slightly clockwise to tighten.

3. Replace handle on stem.

Replace and secure nut.

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