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DUALPAC

 2211 INSTALLATION INSTRUCTIONS

DualPac is a registered trademark of A.W. Chesterton Company.

FORM NO. EN36475  REV. 1 

9/16

860 Salem Street

Groveland, MA 01834 USA

Telephone: 781-438-7000  Fax: 978-469-6528

www.chesterton.com

© 2016 A.W. Chesterton Company.

® Registered trademark owned and licensed by

 A.W. Chesterton Company in USA and other countries.

Chesterton ISO certificates available on www.chesterton.com/corporate/iso

DISTRIBUTED BY:

Figure 3 – Primary Sealer 

(SHOWN WITH 3 PRIMARY SEALER RINGS AND 2 END RINGS)

Black ePTFE

Yellow Aramid

9.  Install each ring of packing by inserting it into the stuffing 

box and, using the packing gland, pushing it in as far as 

the packing gland will allow.

10.  Stagger all ring joints 90°, at a minimum.
11.  Use a Chesterton 176 tamping tool to firmly seat each ring 

in the bottom of the stuffing box.

12.  Repeat steps 9 through 11 until all rings are installed or 

stuffing box is filled.

13.  Install packing gland and gland follower; tighten gland bolts 

to a snug load.

14.  Back off on gland load and loosen gland bolts until gland 

moves freely.

15.  Finger-tighten bolts until gland is snug against packing.
16.  Use a feeler gage to make sure that the gland is not touch-

ing the shaft (gland/shaft contact will generate excess heat 

and cause equipment wear and/or damage).

17.  Take-up gland nuts finger tight. Break in slowly. 100 to 200 

drops per minute leakage at start, adjust (

see note

) until 

leakage is approximately 20 to 60 drops per minute. Lower 

leakage may be achieved depending on the application and 

condition of the stuffing box.

NOTE: Adjust packing gland gradually one flat at a time, no 

more than one adjustment every 15 minutes. Never permit 

box to heat up. Be sure gland adjustments are applied 

evenly.

INSTALLATION

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