Leslie Controls AEROFLOW SUPPLEMENT Special Live loaded packing - Manual

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Installation, Operating and
Maintenance Instructions
Supplement
10/2.5.1.A
Rev. 0
12501 Telecom Drive, Tampa Florida 33637
AEROFLOW SUPPLEMENT
Special “Live Loaded” Packing Arrangement
TABLE OF CONTENTS
INSTALLATION .........................................................................................................................................1
MAINTENANCE .........................................................................................................................................1
PACKING ADJUSTMENT........................................................................................................................1
ILLUSTRATION INDEX
F IGURE 1- L IVE L OADED P ACKING A RRANGEMENT ................................................................................................................... 1
INSTALLATION
NOTE: Refer to Fig. 1 for installation.
1. Thread packing studs (5) into valve bonnet.
2. With the packing follower and packing installed
(refer to valve IOM) install packing flange (1) onto
valve as shown.
3. Install spring washer (2) as shown on the left
side of Fig. 1 in series.
4. Install spring spacer (3), washer (4) and packing
nut (6) as shown.
5. Tighten the packing nut (6) until the washer (4)
comes into contact with top of the packing flange
(1). This will set the live loaded packing to the
required thrust.
Maintenance
PACKING ADJUSTMENT
1. Once valve has been placed in service, and the
valve has been cycled to pressure/temperature,
the packing nuts (4) may need to be readjusted
(when the valve is depressurized and cools to
ambient). This is due to “new” packing taking a
set when cycled in service.
2. All other packing maintenance, inspection, and
cleaning should follow the guidelines set forth in
the valve IOM.
Figure 1- Live Loaded Packing Arrangement
CAUTION!
All warnings from valve IOM must be followed.