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KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
Before installation these instructions must be read fully and understood
GENERAL
Suggested installation orientation is with
valve shaft horizontal or inclined from vertical.
Unless otherwise recommended by Emerson,
mount the valve in the preferred direction with
the directional arrow pointing to the lower
pressure side so that the front face of the disc
will be upstream when the valve is in the closed
position.
Thermal insulation of the body is mandatory for
operating temperatures above 200°C (392°F).
H-series K-LOK offers the following body
styles:
Series H1W and H2W - Wafer
Series H1L and H2L - Lugged
INSPECTION
1. Carefully remove the valve from the
shipping package (box or pallet) to avoid
any damage to the valve and, in the
case of automated valves, to the electric
or pneumatic/hydraulic actuator or
instrumentation.
Emerson.com/FinalControl
2. Prior to installation, clean the inside of
the valve. Ensure that there are no solid
objects such as pieces of wood, plastic or
packing materials within the valve or on
the valve seat.
3 Inspect the seat and disc edge to ensure
that they were not damaged in handling.
This is especially important in the case of
valves with 'fail-open' actuators.
4. Confirm that the materials of construction
listed on the valve nameplate are
appropriate for the service intended and
are as specified.
5. Locate the directional arrow on the body
that defines the preferred mounting
orientation in respect to the pressure. In
most cases, the valve is properly installed
when the actual fluid flow or high pressure
is acting on the front face of the disc when
the valve is closed.
6. Ensure that the packing gland bolting nuts
are tight.
CAUTION
The valve should be installed in the closed
position to ensure that the seat and disc are
not damaged during installation. Particular
care should be taken with valves equipped with
'fail open' actuators. Failure to ensure proper
handling may result in damage to the valve.
If the pipe is lined, confirm that the disc rotation
does not contact the lining during the opening
stroke. Failure to confirm that the disc rotation
does not contact the lining may result in damage
to the valve.
IMPORTANT
Whenever possible, install the valve with the shaft
in the horizontal position and, if possible, with the
cast-in disc stop located top-side of the pipe. If the
shaft cannot be positioned horizontally, position
the shaft so that it is not on the vertical centerline
in a horizontal pipe run. This will minimize any
depositing of solid particles present in the fluid
into the lower bearing.
© 2017 Emerson. All Rights Reserved.
VCIOM-03381-EN 17/11
Related Manuals for Emerson Keystone K-LOK H Series
Summary of Contents for Emerson Keystone K-LOK H Series
- Page 1 This will minimize any case of automated valves, to the electric depositing of solid particles present in the fluid or pneumatic/hydraulic actuator or into the lower bearing. instrumentation. Emerson.com/FinalControl VCIOM-03381-EN 17/11 © 2017 Emerson. All Rights Reserved.
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Page 2: Installation
KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS INSTALLATION Note: for spring return actuators with FIGURE 1 positioners, overpressure will cause excessive Valve properly clamped in place The valves are shipped with flange gasket time delay in the spring movement for the valve surface protection. - Page 3 KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS FIGURE 2 Exploded view Number 26 H1 DN 250 - 900 (NPS 10 - 36) H2 DN 200 - 900 (NPS 8 - 36) Bottom cover and disc stop DN 700 - 900 (NPS 28 - 36) PARTS LIST...
- Page 4 KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS WARNING CAUTION FIGURE 3 When placing the valve into the vice, make sure Physically hold the disc to prevent the disc from Removal of upper shaft the wedged end of the pin faces the assembler. falling and becoming damaged during removal.
- Page 5 KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS Inspecting the valve components 2. While holding the disc with the backside FIGURE 5 facing up and the double pin hub facing 1. After disassembly, visually inspect all Installing the flanged bearings components.
- Page 6 KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS Installing the bottom cover Note: elastomer seats have a backup ring (DN 700-900 / NPS 28-36) (Figure 8, blue part). Make sure that the spilt 1. Place the bottom cover gasket (20) on the of the backup ring is in line with the shaft bottom cover (21).
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Page 7: Troubleshooting
KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS TROUBLESHOOTING Symptom Possible cause Resolution Disc won’t rotate 1. Actuator has failed 1. Repair or replace 2. Valve packed with debris 2. Flush or clean valve to remove debris 3. - Page 8 KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS - BOLTING H1W/H1L ASME CL 150 AND H2W/H2L ASME CL 300 Type 1 Type 2 Type 3 Type 4 H1W/H1L ASME CLASS 150 Type H1W, wafer body Type H1L, lugged body Fastener Quantity...
- Page 9 KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS - BOLTING H1W/H1L ISO PN 10 AND H1W/H1L ISO PN 16 Type 1 Type 2 Type 3 Type 4 H1W/H1L ISO PN 10 Type H1W, wafer body Type H1L, lugged body Fastener Quantity...
- Page 10 KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS - BOLTING H1W/H1L ISO PN 25 AND H2W/H2L ISO PN 40 Type 2 Type 1 Type 3 Type 4 H1W/H1L ISO PN 25 Type H1W, wafer body Type H1L, lugged body Fastener Quantity...
- Page 11 Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Keystone is a mark owned by one of the companies in the Emerson Automated Solutions business unit of Emerson Electric Co. Emerson Automation Solutions, Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co.