KEYSTONE
Operation and Safety Instructions
High Performance Butterfly Valves (HiLok)
Before installation, these instructions must be fully read
and understood.
Storage & Protection
Packed valves are to be stored off the ground
in a clean, dry, indoor area.
Valves are delivered with protection covers,
which should be left in place until immediately
before fitting to the pipe.
End of line
Only Cat.I valves can be installed in end
of line, with seat installed upstream.
Other categories on request. For detailed
information, please refer to the Product
Manual.
Operation & Maintenance
All valves are clockwise to close. Actuators on
valves are set at the factory.
No routine maintenance is required other
than periodic inspection to ensure satis factory
operation and sealing.
Any sign of leakage from packing gland should
be addressed immediately by depressurizing
the valve and tightening the gland screws and
evenly. If there is any leakage, please refer to
the Product Manual.
Spare parts
Only use original Keystone spare parts.
For detailed information please refer to the
Product Manual. References on the valve label
shall be quoted for any spare parts inquiry.
Precautions
WARNING
For safety reasons, it is important to take the following precautions before you start working on the
valve:
1. Personnel making any adjustments to the valves should utilize equipment and clothing
normally used to work with the process where the valve is installed.
2. The line must be depressurized, drained and vented before installing the valve, if necessary,
to avoid injuries.
3. Personnel trained in all aspects of manual and mechanical handling techniques must carry
out handling of all valves.
4. Ensure the valve pressure/temperature limitations marked on the identification label are
above or equal to service conditions (P/T diagram in product manual).
5. Ensure the valve materials, code marked on the identification label, are compatible with the
fluid process.
6. Misuse of the valve is not allowed. For example: the valve, handles, actuators or other parts
may not be used as ‘climbing tools’.
Installation
(detailed instructions in Product Manual and Installation & Maintenance Instructions)
1. Valves are bi-directional once installed between two flanges, mono-directional end-of-line.
2. Remove protective covers.
3. Ensure that mating flanges, valves faces and gaskets are clean and undamaged.
4. Ensure mating pipe flanges are aligned correctly.
5. Spread the flanges to fit the valve easily. (Do not use the valve as a crowbar).
6. The system will need to be flushed clean in case of particles in piping before installation.
7. Fit the valve onto pipework ensuring easy access of the operating mechanism.
8. Tighten the flange bolts in a diagonal pattern.
9. Check the valve operation (no interference between disc and pipe).
Important: Do not finish weld the flanges to the pipe with the valve in place.
Valves are clockwise to close.
CE Label: Category III
W = wafer; L = lugged
Product
CE Label: Category I
Body material
JOB number
Manufacturing in
Category
Product list
Products Fluid Group
Gas Gas Liquid Liquid Category Ref.
1 Group 2 Group 1 Group 2 Product Manual
Emerson.com/FinalControl © 2017 Emerson. All rights reserved.
Trim
Diameter
Working pressure and limit
temperature
Flange connection
Face-to-face
Max. working pressure
onto pipework
Max. working pressure in
end-of-line
(seat installed upstream only)
0038 Lloyd’s Notified Body number
3
without notice EBPJV-0763-EN-1305
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