© SVF Flow Controls, Inc. • 13560 Larwin Circle • Santa Fe Springs, CA 90670 • Tel: 1.800.783.7836 • FAX: 562.802.3114
[email protected] • [email protected] • Visit our website: www.SVF.net • Specifications subject to change without notice
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Please visit www.SVF.net for the latest updates on this document. All data posted on our website supersedes all prior publications • [Document # SVF_FS7_IOM • 10/21/2013]
INSTALLATION, OPERATION & MAINTENANCE FOR SVF
SERIES FS7 BALL VALVES
FS7 Series Ball Valves
I N C O R P O R A T E D
SV
F
Flow Controls
IOM-FS7
TABLE A: TORQUE REQUIREMENTS (
in-lbs)
REPAIR KITS
Repair Kits are available from SVF Flow Controls,
Inc. Table B below shows what the kits consist
of. When ordering a Repair Kit, please be sure
to specify the type, size and seating material
of the valve.
When repairing a valve use only SVF Flow
Controls, Inc. authorized spare parts including;
bolts and nuts, etc. In addition to maintenance
kits, spare parts are available from SVF Flow
Controls, Inc. They are: balls, stems and glands.
If additional parts are required (body and ends)
it is normally recommended that the complete
valve be replaced.
Components from a different valve series should
not be used with the repair of any other valve.
If the valve is altered in any way, no liability can
be accepted by SVF Flow Controls, Inc.
TABLE B: GENERAL REPAIR KIT
4
TORQUE SPECS
Certain precautions need to be followed when
tightening bolts down to their corresponding
torques to help prevent bolt galling. There
are two passes each bolt has to undergo
during the process, first pass and the final
pass. Once every bolt has met the first pass
requirement, the final pass can be initiated.
When tightening down bolts it is necessary to
follow the corresponding bolt pattern shown
below.
FS7 SERIES BOLT PATTERN - BOLT TIGHTENING SEQUENCE
1
7
8
2
4
5
6
3
8
FS7
Valve
Size
Body Bolts
Bolt
Pattern
First Pass
Final Pass
Stem
Nuts
3”
8
177
354
620
4”
8
180
550
620
Part
Quantity
Thrust Washers
1
Stem Seals
4
Belleville Washers
2
Seats
2
Body Seals
2