Emerson Keystone K-LOK H Series, Keystone K-LOK H2W, Keystone K-LOK H1W, Keystone K-LOK H2L, Keystone K-LOK H1L Installation, Operation And Maintenance Instructions
Page 1
KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
Before installation these instructions must be read fully and understood
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
thevalveseat.
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.
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.
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
‘failopen’ 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.
Emerson.com/FinalControl
© 2017 Emerson. All Rights Reserved. VCIOM-03381-EN 17/11
Page 2
KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
INSTALLATION
The valves are shipped with flange gasket
surface protection. Before installing the valve,
remove the protection and carefully clean and
de-grease both surfaces with a solvent.
Series H1L and H2L - Lug style
1. Orient the valve with the directional flow
arrow (preferred direction) pointing in the
proper direction.
2. Insert the valve between the flanges until
the two bottom holes in the valve align with
the two lower flange holes.
3. Insert a bolt or stud through the flange and
thread it into the holes in the valve body.
This will allow the valve to center itself
properly for the installation of the flange
gaskets.
4. Install the flange gaskets and the remaining
flange bolting.
5. Use the crossover method to tighten all
flange bolting.
Series H1W and H2W - Wafer style
1. Orient the valve with the directional flow
arrow (preferred direction) pointing in the
proper direction.
2. Insert the valve between the flanges until
the alignment holes at either side of the
valve match the corresponding holes in
the flanges.
3. Insert a long bolt or stud through the flange
and thread it through the alignment hole.
This will allow the valve to center itself
properly for the installation of the flange
gaskets.
4. Install the flange gaskets and the remaining
flange bolting.
5. Remove the long bolts/studs from the lower
alignment holes and replace with correctlysized bolts.
6. Using the crossover method, tighten all
flange bolts.
VALVE CHECKOUT
1. Tighten the packing gland bolting just
enough to prevent shaft leakage. Overtightening will decrease packing life and
increase operating torque requirements.
2. Check the operation of the valve by stroking
it to ‘full open’ and ‘full close’. To determine
the valve orientation of the disc, double
D’s and keyways are aligned with the disc.
The valve disc travels clockwise to close.
3. For automated valves, set the air pressure/
electrical voltage for at least the minimum
given to operate the actuator. For pneumatic
actuators, do not apply more than 1.25times
the pressure for which the actuator was
designed.
Note: for spring return actuators with
positioners, overpressure will cause excessive
time delay in the spring movement for the valve
disc to travel out of the seat.
OPERATION
The H-Series K-LOK has been designed to
require a minimum of maintenance. Generally,
only maintenance on the packing box is
required.
MAINTENANCE
If shaft leakage is observed through the packing
box, tighten the gland nuts.
Note: do not over-tighten packing box gland
nuts. Over-tightening will increase the torque
required to operate the valve. When tightening
the gland nuts, use half-turn increments until
leakage has stopped.
DISASSEMBLY
To begin disassembly, refer to the parts list
(Figure 2) and proceed as follows:
WARNING
Depressurize the valve and associated piping
before disassembly. Failure to do so may cause
serious personal injury and/or equipment
damage.
1. Remove the valve from the line. Clean
the valve according to proper cleaning
procedures as outlined by the plant or
according to a prescribed procedure.
2. Remove the actuator and relevant
connecting key. Note the actuator position
relative to the valve.
CAUTION
Throughout disassembly and assembly, always
use cardboard or brass shims to protect the
valve body, disc, flange and sealing surfaces from
damage. Failure to do so may result in serious
damage to the valve.
Removing the disc-to-shaft wedged pin
connections
1. Open the disc to its full open position.
Note: on valve sizes DN 250 (NPS 10) and
larger, it is recommended that two workers
perform the wedged pin (5) removal process.
2. Place the disc in a vice, see Figure 1.
3. Locate a steel punch on the wedged pins
and strike the punch with ahammer.
Note: some of the weld on the three wedged
pins may need to be removed by grinding.
FIGURE 1
Valve properly clamped in place
2
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KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
FIGURE 2
Exploded view
17
12
10
11
9
7
18
19
1
8
5
Number 26
H1 DN 250 - 900 (NPS 10 - 36)
H2 DN 200 - 900 (NPS 8 - 36)
27
28
3
6
4
1
2
14
13
15
16
16
15
Bottom cover and disc
stop DN 700 - 900
(NPS28 - 36)
20
21
22
23
PARTS LIST
Pos Description
1 Body
2 Disc
3 Upper shaft
4 Lower shaft
5 Wedge pins
6, 7 Bearings
8 Anti extrusion ring
9 Shaft packing
6
Pos Description Pos Description
10 Packing gland follower
11 Snap ring
12 Gland bridge
13 Seat
14 Seat retaining ring gasket
15 Seat retaining ring
16 Seat retaining ring bolting
17 Gland bridge bolting
18, 19 Gland bridge nut, SRR nut
20* Bottom cover gasket
21* Bottom cover
22, 23* Bottom cover bolting
24* Nut disc stopper
25* Bolt disc stopper
26 Key
27, 28 Tag
* DN 700-900 / NPS 28-36
3
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KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
WARNING
When placing the valve into the vice, make sure
the wedged end of the pin faces the assembler.
Hold the punch with a punch holder or a pair of
vice grips. Otherwise, serious injury may occur.
Removing the bottom cover
(onlyDN700-900/ NPS 28-36)
To disassemble the bottom cover assembly,
remove the following components:
• bottom cover (21)
• washers (22)
• bottom cover gasket (20)
• bolts (23)
Removing the packing gland assembly
1. Unthread the nuts (19) from the packing
bridge bolts (17).
2. Remove the gland bridge (12).
Removing the upper shaft
CAUTION
Throughout this operation, make sure the disc
edges remain protected from contact with the
body by installing cardboard at all disc hub areas.
Failure to do so may cause damage to the disc
sealing edge. Protect the shaft from the vice teeth
to prevent damage and to eliminate potential
packing leakage.
CAUTION
Physically hold the disc to prevent the disc from
falling and becoming damaged during removal.
When both the upper shaft and lower shaft are
removed from the disc, the disc is unsupported!
WARNING
Smaller discs may be removed by hand
(DN50-200 / NPS 2-8). Remove larger discs with
proper hoisting equipment. Failure to do so may
result in personal injury or damage to equipment.
Removing the seatretainer ring
Preferably place the valve in horizontal position
with the retaining ring (15) facing upwards.
Remove the seat retainer ring by removing the
bolts (16) and nuts (19), in case of a wafer type
valve).
WARNING
Prevent the retaining ring from falling by holding
the ring by hand (DN 50-200 / NPS 2-8) or by using
proper hoisting equipment. Failure to do so may
result in personal injury or damage to equipment.
Removing the seatretainer gasket
Remove the seat retainer gasket (14). Use a
powered wire brush tool to remove the gasket
material that may have adhered to the mating
body surfaces.
FIGURE 3
Removal of upper shaft
FIGURE 4
Removal of lower shaft
1. When removing the upper shaft (3) from the
disc (2), clamp the vice jaws on to the upper
shaft area above the valve body (1) top plate.
2. Once the vice jaws are secure against
the upper shaft, drive the wedge-shaped
chisel/punch between the valve body top
plate and the vice, see Figure 3.
3. As the valve body moves away from the vice,
the upper shaft is removed from the upper
disc hub.
4. Continue to reposition the valve body with
the vice so as to allow removal of upper
shaft (3).
WARNING
Prevent the body from falling by holding the body
by hand (DN 50-100 / NPS 2-4) or by using proper
hoisting equipment. Failure to do so may result in
personal injury or damage to equipment.
Removing the lower shaft and disc
1. Take a slide hammer puller and screw it
in the threaded hole of the bottom shaft(4)
(For DN 700-900 / NPS 28-36 enter the
bottom shaft on bottom cover side).
2. Gently pull the slide hammer to pull out the
bottom shaft, see Figure 4.
Removing the seatassembly
To remove the seat assembly, treat the seat
(13) and its associated components as a single
assembly by removing the total seat assembly
at once.
Removing the shaft packing (9) with shaft (3)
in body (1)
Two screws with a diameter not greater than
8mm (¼") and a length of at least 150 mm (6”)
are required. The most commonly used screws
are 'drywall screws'. Using the screws, grab
and remove each packing ring, one at the time.
Removing the shaft packing (9) with shaft
removed from body
Use a hook-type tool to grab and remove each
packing ring, one at the time.
Removing the flanged shaft bearings
Use a driving punch and place it against the
end of the flanged bearing (6). Gently tap with a
hammer on the other side of the driving punch
to remove the bearing.
4
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KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
Inspecting the valve components
1. After disassembly, visually inspect all
components.
2. Make sure all body sealing surfaces:
• are flat
• are free of corrosion damage
• have a smooth surface
• are free of burrs.
Remove any burrs with fine grit sandpaper.
3. Inspect for scratches around disc edges:
• If scratched, smooth the edge with
fine grit sandpaper (220/400 wet/dry
sandpaper)
• Remove the scratch by using a blending
motion and extend the smoothed area at
least 50 mm (two inches) above, below
and around the original scratch
• To polish the disc edge, use a powered
wire brush
• Finish sand or polish the edge on a lathe,
as required.
4. Check to see that the upper and lower (3, 4)
shaft-to-bearing contact locations are free
of galling.
5. Check to see if the upper shaft-to-packing
(9) contact area is free of scratches.
ASSEMBLY
Note: scratched or galled surfaces must be
polished or replaced.
Installing flanged shaft bearing
1. To avoid damaging the flanged shaft bearing
(6), gently press the bearing into the body
by hand or by lightly striking the bearing (5)
with a rubber hammer.
2. Once the flanged shaft bearing has been
partially inserted into the valve body, insert
the installation/removal tool, see Figure 5.
3. Gently strike the tool with a hammer to
continue inserting the bottom shaft bearing
(use the slide hammer function for the top
shaft bearing) until it is flush with the body
surface.
2. While holding the disc with the backside
facing up and the double pin hub facing
toward to the body upper stem journal,
position the disc in the body.
3. Push both shafts into the disc shaft holes.
4. If required, rotate the shafts until the shaft
pin holes are in alignment with the disc hub
pin holes.
5. Manually push the wedged pins (5) to install
them through the disc hub pin holes.
6. Install the packing set (see installing the
shaft packing set).
7. Carefully drive the wedged pins firmly into
the connection with a punch and a hammer.
8. Tig weld the wedged disc pins (5). Use the
following filler rod:
Shaft and pin material Filler rod
17-4 PH 1075 Ht 312 stainless steel
17-4 PH 1160 DHt (NACE) 312 stainless steel
316 stainless steel 312 stainless steel
Condition B stainless steel 312 stainless steel
K Monel 500
Inconel
®
®
Monel
Inconel
®
®
Installing the shaft packing set
1. Install the bearing (7), anti-extrusion
packing rings (8), packing set (9) and gland
follower (10) into the upper journal of the
valve body (1).
2. Keeping the disc assembly in the closed
position and closely centered in the body
bore, tighten the gland bridge nuts (19).
Nuts have been tightened correctly when
the gland bridge (12) is flush with the valve
body top plate.
FIGURE 5
Installing the flanged bearings
Installing the disc/shaft assembly
CAUTION
To prevent damage to the disc, do not allow the
disc edges to contact the body flowpath surface.
1. Install the upper shaft (3) and lower
shaft(4) into the valve body (1) with the
pinning grooves position on top of the shaft
sideview.
Note: the upper and lower shafts are correctly
installed when the lower ends of the shafts are
flush with the body flowpath surface.
5
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KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
Installing the bottom cover
(DN700-900 / NPS 28-36)
1. Place the bottom cover gasket (20) on the
bottom cover (21).
2. Align the bottom cover plate (21) with the
body (1) bottom surface. Make sure the
bottom cover gasket remains in alignment
with the bottom cover plate gasket groove.
3. Place the four bolts and washers (22,23) and
tighten the bolts.
Installing the seat assembly
1. Check to make sure the disc (2) is in the
closed position.
2. Make sure the disc is centered in relation to
the body seat pocket.
3. Place the seat assembly (13) and the seat
retaining ring gasket (14) in the valve
body(1). Ensure the disc is closed against
the disc stop.
Note: metal and fire safe seat assemblies have
2gaskets. Fire safe seat assembly has an extra
back up ring, see Figure 10 (light grey).
Note: elastomer seats have a backup ring
(Figure8, blue part). Make sure that the spilt
of the backup ring is in line with the shaft
direction.
Note: make sure the seats are positioned as
shown in Figures 6 - 10.
4. Place the seat retaining ring (15) on top
of the seat retaining gasket (14) and seat
assembly (13).
5. Place and tighten the retaining ring bolts
(16) and nuts (19, wafer). For lugged valves
cross tighten the bolts.
CAUTION
The seat retaining bolts for the wafer type
valves provide only enough force to hold the
seat retaining ring for shipment and installation.
Ifvalve actuation is required before installation,
press the seat retainer into the seat to prevent
damage to the valve seat before actuation.
FIGURE 6
General service seat
FIGURE 8
Elastomer seat
FIGURE 7
Wire wrapped seat
FIGURE 9
Metal seat
FIGURE 10
Fire safe seat
6
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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. Shaft key has sheared 3. Determine cause of shearing and correct, replace
Shaft packing leaking 1. Gland bridge bolting loose 1. Tighten gland bridge bolting
2. Packing damaged 2. Depressurize valve and replace packing
Bottom cover gasket leaking 1. Bottom cover bolting loose 1. Tighten bottom cover bolting
2. Gasket damage 2. Remove valve from service and replace gasket
Valve leaking 1. Valve not fully closed 1. Close valve
2. Debris trapped in valve 2. Cycle and flush to remove debris
3. Seat or disc edge damaged 3. Remove valve from service and replace seat and/or repair or replace disc
4. Actuator mechanical closure stop incorrect 4. Adjust the stop to allow further closure
Jerky operation 1. Shaft/bearing damaged 1. Disassemble valve and inspect for damage, repair or replace damaged parts,
reassemble
2. Actuator/shaft adapter misaligned 2. Remove actuator mounting and realign
3. Overtightened packing 3. Loosen packing to hand tight, cycle valve, retighten
4. Air supply inadequate 4. Increase air supply pressure
7
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
Valve size
2 CL150 ⅝" - 11UNC 4 4¾ 5¾ 8 2¾ 1⅝
2½ CL150 ⅝" - 11UNC 4 5¼ 6 8 2¾ 1¾
3 CL150 ⅝" - 11UNC 4 5¼ 6¼ 8 3 2
4 CL150 ⅝" - 11UNC 8 5½ 6½ 16 3 2
5 CL150 ¾" - 10UNC 8 5¾ 6¾ 16 3 2
6 CL150 ¾" - 10UNC 8 5⅞ 7 8 3½ 2½
8 CL150 ¾" - 10UNC 8 6¼ 7¼ 16 3¼ 2¼
10 CL150 ⅞" - 9UNC 12 6¾ 8 24 3¾ 2½
12 CL150 ⅞" - 9UNC 12 7
14 CL150 1" - 8UNC 12 8¼ 9½ 24 4½ 3¼
16 CL150 1" - 8UNC 16 8¾ 10 32 4¾ 3½
18 CL150 1⅛" - 8UN 16 9½ 11 32 5¼ 3¾
20 CL150 1⅛" - 8UN 20 10½ 11⅞ 40 5¾ 4¼
24 CL150 1¼" - 8UN 20 12 13½ 40 6½ 5
28 CL150 1¼" - 8UN 24 14½ 15¾ 48 7½ 6
30 CL150 1¼" - 8UN 24 14½ 16 48 7½ 6
32 CL150 1½" - 8UN 24 16¼ 18 48 8¾ 7
36 CL150 1½" - 8UN 28 17½ 19¼ 56 8¾ 7
Pressure
class
diameter
and thread
Quantity Length - inches Quantity Length - inches
No. of stud/
bolts
- - - 8 3 2
8 4 5½ 8 5½ 4
8 4½ 6 8 6 4½
8 4¾ 6½ 8 6½ 4¾
8 5 6¾ 8 6¾ 5
Flange bolt
(hex head) Type 1
5
/
16
Stud threaded rod
(all threaded) Type 2
8½ 24 3⅞ 2¾
No. of stud/
bolts
Stud threaded rod
(all threaded) Type 3
Flange bolt
(hex head) Type 4NPS
H2W/H2L ASME CLASS 300
Type H2W, wafer body Type H2L, lugged body
Fastener
Valve size
2
2½ CL300 ¾" - 10UNC 8 5½ 6½ 16 3 2
3 CL300 ¾" - 10UNC 8 5¾ 6¾ 16 3¼ 2⅛
4 CL300 ¾" - 10UNC 8 6¼ 7¼ 16 3¼ 2¼
5 CL300 ¾" - 10UNC 8 6⅝ 7⅝ 16 3½ 2½
6 CL300 ¾" - 10UNC 12 6¾ 7¾ 24 3½ 2½
8 CL300 ⅞" - 9UNC 12 7⅞ 9 24 4¼ 3
10 CL300 1" - 8UNC 16 8⅞ 10 32 4¾ 3½
12 CL300 1⅛" - 8UN 16 9½ 11 32 5¼ 3¾
14 CL300 1⅛" - 8UN 16 10⅞ 12¼ 32 5⅝ 4¼
16 CL300 1¼" - 8UN 16 11⅞ 13¼ 32 6¼ 4¾
18 CL300 1¼" - 8UN 20 12¾ 14¼ 40 6¾ 5¼
20 CL300 1¼" - 8UN 20 13½ 15 40 6¾ 5½
24 CL300 1½" - 8UN 20 15 16¾ 40 8 6¼
28 CL300 1⅝" - 8UN 24 18½ 20¼ 48 9¼ 7½
30 CL300 1¾" - 8UN 24 19 21 48 10 8
32 CL300 1⅞" - 8UN 24 20 22¼ 48 10½ 8¼
36 CL300 2” - 8UN 28 20¾ 23 56 10¾ 8½
Pressure
class
CL300
CL300 1⅛" - 8UN 8 3¼ 4⅝ 8 4⅝ 3¼
CL300 1¼" - 8UN 8 3½ 5 8 5 3½
diameter
and thread
⅝" - 11UNC
1¼" - 8UN 4 4¼ 5¾ 4 5¾ 4¼
1¼" - 8UN 4 3½ 5 4 5 3½
1¼" - 8UN 8 4 5½ 8 5¼ 3¾
1½" - 8UN 8 4¼ 6 8 6 4¼
Quantity Length - inches Quantity Length - inches
No. of stud/
bolts
8
8 5 6⅞ 8 6⅞ 5
8 5¼ 7¼ 8 7¼ 5¼
8 5¾ 7⅞ 8 7⅞ 5¾
8 6 8¼ 8 8¼ 6
Flange bolt
(hex head) Type 1
5 5⅞ 16 2¾ 2¾
Stud threaded rod
(all threaded) Type 2
No. of stud/
bolts
Stud threaded rod
(all threaded) Type 3
Flange bolt
(hex head) Type 4NPS
8
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
Valve size
50 PN10 M16 4 110 130 8 60 42
65 PN10 M16 8 120 130 16 65 45
80 PN10 M16 8 120 140 16 65 45
100 PN10 M16 8 140 150 16 70 50
125 PN10 M16 8 130 150 16 65 45
150 PN10 M20 8 140 160 16 75 50
200 PN10 M20 8 140 160 16 80 55
250 PN10 M20 12 160 180 24 80 55
300 PN10 M20 12 160 190 24 80 65
350 PN10 M20 16 180 200 32 90 70
400 PN10 M24 16 200 220 32 100 75
450 PN10 M24 20 210 230 40 100 80
500 PN10 M24 20 220 250 40 110 90
600 PN10 M27 20 250 280 40 130 100
700 PN10 M27 20 280 300 40 120 90
750 PN10 M30 20 280 310 40 130 100
800 PN10 M30 20 310 340 40 150 120
900 PN10 M30 24 320 350 48 150 120
Pressure
class
diameter
and thread
Quantity Length - mm Quantity Length - mm
No. of stud/
bolts
8 65 95 8 90 65
8 70 100 8 100 70
8 70 100 8 100 70
8 80 110 8 110 80
Flange bolt
(hex head) Type 1
Stud threaded rod
(all threaded) Type 2
No. of stud/
bolts
Stud threaded rod
(all threaded) Type 3
Flange bolt
(hex head) Type 4DN
H1W/H1L ISO PN 16
Type H1W, wafer body Type H1L, lugged body
Fastener
Valve size
50
65 PN16 M16 8 120 130 16 65 45
80 PN16 M16 8 120 140 16 65 45
100 PN16 M16 8 140 150 16 70 50
125 PN16 M16 8 130 150 16 65 45
150 PN16 M20 8 140 160 16 70 50
200 PN16 M20 12 150 170 24 80 55
250 PN16 M24 12 160 180 24 90 60
300 PN16 M24 12 170 200 24 90 65
350 PN16 M24 16 200 210 32 100 75
400 PN16 M27 16 210 230 32 100 80
450 PN16 M27 20 220 250 40 110 90
500 PN16 M30 20 240 270 40 135 105
600 PN16 M33 20 300 330 40 160 130
700 PN16 M33 20 290 320 40 140 110
750 PN16 M33 20 290 320 40 140 110
800 PN16 M36 20 320 360 40 170 130
900 PN16 M36 24 350 380 48 180 140
Pressure
class
PN16
diameter
and thread
M16
Quantity Length - mm Quantity Length - mm
No. of stud/
bolts
4
8 75 110 8 110 75
8 80 110 8 110 80
8 80 120 8 120 80
8 90 130 8 130 90
Flange bolt
(hex head) Type 1
110 130 8 60 42
Stud threaded rod
(all threaded) Type 2
No. of stud/
bolts
Stud threaded rod
(all threaded) Type 3
Flange bolt
(hex head) Type 4DN
9
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 1
Type 2
Type 3 Type 4
H1W/H1L ISO PN 25
Type H1W, wafer body Type H1L, lugged body
Fastener
Valve size
50 PN25 M16 4 120 130 8 60 42
65 PN25 M16 8 120 140 16 65 45
80 PN25 M16 8 130 150 16 65 45
100 PN25 M20 8 150 170 16 75 50
125 PN25 M24 8 150 170 16 80 55
150 PN25 M24 8 150 180 16 80 58
200 PN25 M24 12 160 180 24 90 60
250 PN25 M27 12 180 210 24 90 65
300 PN25 M27 16 190 220 32 90 70
350 PN25 M30 16 210 240 32 110 80
400 PN25 M33 16 230 260 32 120 90
450 PN25 M33 16 250 280 32 130 100
500 PN25 M33 20 270 300 40 140 110
600 PN25 M36 20 310 350 40 165 135
700 PN25 M39 20 320 350 40 160 120
750 PN25 M39 20 320 350 40 160 120
800 PN25 M45 20 350 390 40 180 140
900 PN25 M45 24 370 420 48 200 150
Pressure
class
diameter
and thread
Quantity Length - mm Quantity Length - mm
No. of stud/
bolts
4 75 110 8 110 75
4 95 130 - - -
8 90 130 8 130 90
8 90 130 8 130 90
8 100 140 8 140 100
8 105 150 8 150 105
Flange bolt
(hex head) Type 1
Stud threaded rod
(all threaded) Type 2
No. of stud/
bolts
Stud threaded rod
(all threaded) Type 3
Flange bolt
(hex head) Type 4DN
H2W/H2L ISO PN 40
Type H2W, wafer body Type H2L, lugged body
Fastener
Valve size
50 PN40 M16 4 120 130 8 60 42
65 PN40 M16 8 120 140 16 65 45
80 PN40 M16 8 130 150 16 65 45
100 PN40 M20 8 150 170 16 75 50
125 PN40 M24 8 150 170 16 80 55
150 PN40 M24 8 150 180 16 85 58
200 PN40 M27 12 180 210 24 100 70
250 PN40 M30 12 200 230 24 110 75
300 PN40 M30 16 210 240 32 110 80
350 PN40 M33 16 260 290 32 140 110
400 PN40 M36 16 290 320 32 150 120
450 PN40 M36 16 310 345 32 170 130
500 PN40 M39 16 320 350 32 170 130
600 PN40 M45 16 380 420 32 200 160
700 PN40 M45 20 410 450 40 210 170
750 PN40 M52 20 430 470 40 230 180
800 PN40 M52 20 450 490 40 240 190
900 PN40 M52 24 450 500 48 230 180
Pressure
class
diameter
and thread
Quantity Length - mm Quantity Length - mm
No. of stud/
bolts
4 110 150 4 150 110
4 90 130 4 130 90
8 90 130 8 130 92
8 110 150 8 150 110
8 110 150 8 150 110
8 115 170 8 170 115
8 120 170 8 170 120
8 125 170 8 170 125
Flange bolt
(hex head) Type 1
Stud threaded rod
(all threaded) Type 2
No. of stud/
bolts
Stud threaded rod
(all threaded) Type 3
Flange bolt
(hex head) Type 4DN
10
Page 11
KEYSTONE K-LOK SERIES H HIGH PERFORMANCE BUTTERFLY VALVES
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS - BOLTING AS TABLE E
Type 1 Type 2 Type 3 Type 4
AS TABLE E
Type AS-W, wafer body Type AS-L, lugged body
Fastener
Valve size
50
65 AS Table E M16 4 100 115 8 55 35
80 AS Table E M16 4 100 120 8 55 35
100 AS Table E M16 8 110 130 16 65 45
125 AS Table E M16 8 115 140 16 65 45
150 AS Table E M20 8 125 150 16 70 45
200 AS Table E M20 8 130 150 16 70 50
250 AS Table E M20 12 150 170 24 80 55
300 AS Table E M24 12 170 190 24 90 65
Pressure
class
AS Table E
diameter
and thread
M16
Quantity Length - mm Quantity Length - mm
No. of stud/
bolts
4
Flange bolt
(hex head) Type 1
95 110 8 50 30
Stud threaded rod
(all threaded) Type 2
No. of stud/
bolts
Stud threaded rod
(all threaded) Type 3
Flange bolt
(hex head) Type 4DN
Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product.
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
andthe Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by
our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without
notice.
Emerson.com/FinalControl
11
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