
Installation, Operation and Maintenance Manual
Series M1 - Severe Service Ball Valves
Date: October 2020/ Page 10 of 10
Subsidiary of BRAY INTERNATIONAL, Inc.
FLOW-TEK, Inc. Tel: 832.912.2300 © 2020 Flow-Tek, Inc.
8323 N. Eldridge Pkwy. #100 Fax: 832.912.2301
Houston, Texas 77041 www.flow-tek.com
11 . Install the gland flange (9) over the stem (7) so that one of its
scribe lines is facing the body closure joint. If necessary rotate
the stem so that the two scribe lines are aligned.
WARNING
A gland flange must be pulled down evenly to prevent cocking
or side loading, as this could cause damage to the packing and
prevent the valve from operating properly.
Make sure that the gland flange remains perpendicular to the
stem, and the gap around the stem remains concentric during
tightening process.
Do not over-tighten nuts. Torque all nuts evenly per specified
packing torque.
12. Apply lubricant to stud threads (14) and bottom face of hex
nuts (16).
13. Insertstuds(14),intothreadedholes.Insert theBellevillesprings/
washers (15) onto each stud. Belleville
washers shall be stacked in alternating
direction (series stack). Install nuts (16)
onto each stud and torque to specified
value.Besuretotorqueina crosspattern
to avoid uneven loading. Packing
assembly torques are given on
the Valve Test Form.
14. Install bearing retainer (12) and stem bearing (13) into the
mounting flange (11). If necessary, tap gently into place using a
soft hammer.Valveisreadyforinstallingtheactuator,orhandle.
15. Insert keys into the stem (7). Ensure key length provides and
maintains full engagement.
8. VALVE DISASSEMBLY
YourM1valveshavebeencarefully fittedandassembledforoptimum
performance and long life. It is not recommended that the valves
be disassembled without factory supervision or specific instructions
provided by the Flow-Tek Service Department.
9. TRANSPORT AND STORAGE
Valves will be shipped in a manner to minimize damage during
transit Upon arrival at the site, valves general condition shall be
inspected right away for any shipping damage. Any damage shall
be reported to Flow-Tek.
Short-Term Storage:
Short-term storage is defined as storage of products and
equipment to be used in the construction of a project for periods
of one to three months. Short-term storage must be carried out in a
controlled manner as follows:
1. Valves must be stored in a closed, clean, and dry environment.
2. Ball valves should be stored in the fully open position to
protect the ball and seats.
3. Ball valves should remain in the original shipping container
and be placed on pallets of wood or other suitable materials.
End protectors should remain on the valve ends to prevent
the entrance of dirt, and removed only at time of installation.
Long-Term Storage
Long-term storage is defined as storage of products and/or
equipment for periods longer than 3 months. Long-term storage
must be carried out in a controlled manner as follows:
1. Valves must be stored in a closed, clean, and dry environment.
2. Ball valves should be stored in the fully open position to
protect the ball and seats.
3. Ball valves should remain in the original shipping container
and be placed on pallets of wood or other suitable materials.
End protectors should remain on the valve ends to prevent
the entrance of dirt, and removed only at time of installation.
4. Periodically, the valves should be checked to ensure the
above conditions are maintained.
These are general guidelines for valve storage. Please consult the
factory for information regarding specific requirements.
10. SERVICE CONTACT
Flow-Tek Service may be reached 24 hours per day / 7 days per
week.